Published October 14, 2025 by , Editor‑in‑Chief

The Complete Motorcycle Compendium
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1995 Daimler-Einspur Wood Replica
1885 Daimler-Einspur Wood Replica

 

Daimler (Germany) [Defunct, Historic]

Daimler Einspur (1885)

Years Active: 1885 (prototype)

Notable Models: Daimler Reitwagen (Einspur)

Gottlieb Daimler and Wilhelm Maybach built the Reitwagen (“riding car”) in 1885, widely considered the world’s first true motorcycle.
It featured a wooden frame, steel‑rimmed wheels, and a 264cc single‑cylinder four‑stroke engine producing 0.5 hp.
Although impractical, it marked the beginning of powered two‑wheel transport and laid the foundation for the global motorcycle industry.

💡 Did You Know? The Daimler Reitwagen is preserved in replica form at the Mercedes‑Benz Museum in Stuttgart.

Dalesman (United Kingdom) [Defunct]

Dalesman Motorcycles

Years Active: 1969–1974

Notable Models: Dalesman 125 Enduro, Dalesman 250 Motocross

Dalesman was a short‑lived British manufacturer specializing in off‑road motorcycles.
Their bikes were powered by Sachs engines and targeted the growing motocross and enduro markets of the late 1960s.
Despite competitive performance, Dalesman could not compete with larger European and Japanese brands and ceased operations in the mid‑1970s.

💡 Did You Know? Dalesman motorcycles were exported to the U.S. and sold under the “Sprite” brand name.

Daelim (South Korea) [Active]

Daelim Motor Company

Years Active: 1962–present

Notable Models: Daelim Daystar 125, Daelim Roadwin 250, Daelim Besbi scooter

Daelim is one of South Korea’s largest motorcycle and scooter manufacturers, producing over 300,000 units annually.
Known for affordable and reliable commuter bikes, Daelim exports worldwide and has a strong presence in Asia, Europe, and South America.
Their lineup includes scooters, small displacement motorcycles, and cruisers like the Daystar.

💡 Did You Know? Daelim has long supplied engines and components to Honda under licensing agreements.

Daihatsu (Japan) [Defunct – Motorcycle Division]

Daihatsu Motorcycles

Years Active: 1907–1960s (motorcycles)

Notable Models: Daihatsu Bee scooter, Daihatsu 125cc commuter bikes

Better known today as an automobile manufacturer, Daihatsu also produced motorcycles and scooters in the mid‑20th century.
Their lightweight two‑wheelers were aimed at Japan’s booming post‑war commuter market.
By the 1960s, Daihatsu shifted focus entirely to cars, leaving behind a brief but notable motorcycle legacy.

💡 Did You Know? Daihatsu’s “Bee” scooter was one of Japan’s earliest three‑wheeled utility vehicles, bridging motorcycles and microcars.

Day (United Kingdom) [Defunct]

Day Motorcycles

Years Active: 1919–1930s

Notable Models: Day 250cc Singles

Day was a small British motorcycle manufacturer producing lightweight commuter bikes in the interwar years.
Their machines were powered by Villiers two‑stroke engines and marketed as affordable transport.
Like many small marques, Day could not survive the economic downturn of the 1930s and disappeared before WWII.

💡 Did You Know? Surviving Day motorcycles are extremely rare and mostly found in private British collections.

Derbi (Spain) [Active – absorbed into Piaggio Group]

Derbi Motorcycles

Years Active: 1922–present

Notable Models: Derbi Senda, Derbi GPR 125, Derbi Variant

Derbi began as a bicycle repair shop in Spain and grew into a successful motorcycle and scooter manufacturer.
Known for its small‑displacement racing machines, Derbi won multiple Grand Prix world championships in the 50cc and 125cc classes.
Today, Derbi is part of the Piaggio Group, continuing to produce scooters and lightweight motorcycles for the European market.

💡 Did You Know? Derbi’s name comes from “Derivados de Bicicletas” — “derivatives of bicycles.”

DKW (Germany) [Defunct, Legacy via Auto Union → Audi]

DKW Motorcycles

Years Active: 1916–1966

Notable Models: DKW RT 125, DKW NZ 350

DKW (Dampf‑Kraft‑Wagen) was one of the world’s largest motorcycle manufacturers in the 1930s.
Their RT 125 became one of the most influential motorcycles ever built, with its design copied worldwide — including by Harley‑Davidson (Hummer), BSA (Bantam), and Yamaha (YA‑1).
After WWII, DKW became part of Auto Union, which later evolved into Audi. Motorcycle production ended in the 1960s.

💡 Did You Know? The DKW RT 125 is considered the most copied motorcycle design in history.

Dnepr (Ukraine, former USSR) [Defunct]

Dnepr Motorcycles

Years Active: 1946–2000s

Notable Models: Dnepr MT‑10, Dnepr MT‑11

Dnepr was a Soviet and later Ukrainian motorcycle manufacturer based in Kyiv.
Known for heavy sidecar motorcycles, Dnepr machines were widely used by the Soviet military and police.
They were based on BMW designs taken as war reparations after WWII.
Production dwindled after the collapse of the USSR, and the brand is now defunct, though many bikes remain in use across Eastern Europe.

💡 Did You Know? Dnepr motorcycles could ford rivers up to 0.5 meters deep when equipped with sidecar drive.

Ducati (Italy) [Active]

Ducati Motor Holding S.p.A.

Years Active: 1926–present

Notable Models: Ducati Monster, Ducati Panigale V4, Ducati Multistrada, Ducati Scrambler

Ducati is one of the world’s most iconic motorcycle brands, renowned for its high‑performance sportbikes and racing pedigree.
Founded in Bologna, Ducati began with radios and small engines before moving into motorcycles.
Their Desmodromic valve system and L‑twin engines became trademarks.
Ducati has won multiple MotoGP and World Superbike championships and continues to innovate with models like the Panigale V4 and DesertX adventure bike.

💡 Did You Know? Ducati’s Desmodromic valve system uses a unique mechanical closure instead of springs, allowing higher RPMs and performance.

Ducson (Spain) [Defunct]

Ducson Motorcycles

Years Active: 1950s–1980s

Notable Models: Ducson 50cc, Ducson 125cc

Ducson was a Spanish motorcycle manufacturer specializing in small‑displacement two‑stroke machines.
Their mopeds and lightweight motorcycles were popular in Spain during the post‑war years, offering affordable mobility.
Ducson also competed in small‑capacity racing, gaining a reputation for performance in the 50cc and 125cc classes.
The brand eventually disappeared in the 1980s as the Spanish market consolidated under larger names like Derbi and Montesa.

💡 Did You Know? Ducson’s 50cc race bikes were known for their high‑revving engines, often exceeding 12,000 RPM.

Dürkopp (Germany) [Defunct]

Dürkopp Motorcycles

Years Active: 1901–1961

Notable Models: Dürkopp Diana scooter, Dürkopp 500cc Singles

Dürkopp was a German manufacturer that produced bicycles, motorcycles, and later sewing machines and automobiles.
Their motorcycles ranged from early singles to post‑war scooters like the Diana.
By the 1960s, Dürkopp withdrew from motorcycle production to focus on industrial machinery, but their two‑wheelers remain collectible examples of German engineering.

💡 Did You Know? The Dürkopp Diana scooter was considered Germany’s answer to the Italian Vespa in the 1950s.

Duzmo (United Kingdom) [Defunct]

Duzmo Motorcycles

Years Active: 1919–1923

Notable Models: Duzmo 500cc Singles

Duzmo was a short‑lived British motorcycle brand founded by racing enthusiast George P. Duzmo.
The company produced high‑performance singles aimed at competition and sporting riders.
Despite strong engineering, financial difficulties led to its closure after only a few years.
Surviving Duzmo motorcycles are extremely rare and highly prized by collectors of early British racing machines.

💡 Did You Know? Duzmo motorcycles were often hand‑tuned for racing, making each example slightly unique.

Dyno (United States) [Defunct, Bicycle Brand with Motorized Models]

Dyno Motorized Bicycles

Years Active: 1980s–1990s

Notable Models: Dyno Cruiser with motor kits

Dyno was primarily a BMX and cruiser bicycle brand under GT Bicycles, but in the 1980s and 1990s, some Dyno cruisers were fitted with small auxiliary engines.
While not full motorcycles, these motorized bicycles blurred the line between pedal power and motorized transport.
Today, Dyno is remembered more for its stylish cruisers and BMX heritage than for its brief motorized experiments.

💡 Did You Know? Collectors of 1980s BMX culture often seek out Dyno cruisers with period‑correct motor kits as rare curiosities.

Dafra (Brazil) [Active]

Dafra Motos

Years Active: 2007–present

Notable Models: Dafra Citycom 300i, Dafra Apache RTR 200

Dafra is a Brazilian motorcycle manufacturer producing scooters, commuters, and mid‑displacement motorcycles.
The company partners with international brands such as SYM, TVS, and BMW to assemble and distribute models locally.
Dafra has become one of Brazil’s largest motorcycle companies, focusing on affordability and practicality for urban riders.

💡 Did You Know? Dafra assembles BMW’s G310 series in Brazil under a partnership agreement.

Damon (Canada) [Active – Electric]

Damon Motorcycles

Years Active: 2017–present

Notable Models: Damon Hypersport, Damon HyperFighter

Damon is a Canadian electric motorcycle startup focused on high‑performance superbikes.
Their Hypersport model features advanced safety technology, including CoPilot (AI‑based rider assistance) and Shift (ergonomics that adjust riding position on the fly).
Damon aims to redefine electric motorcycling with long range, high speed, and cutting‑edge connectivity.

💡 Did You Know? Damon claims its Hypersport can achieve over 200 mph and 200 miles of range on a single charge.

Demm (Italy) [Defunct]

Demm Motorcycles

Years Active: 1953–1988

Notable Models: Demm Smily, Demm 50cc mopeds

Demm (Dei Motori Minarelli) was an Italian manufacturer best known for its mopeds and small motorcycles.
Their stylish 50cc machines were popular among Italian youth in the 1960s and 1970s.
Demm also produced engines for other manufacturers. The brand eventually closed in the late 1980s as competition from Japanese mopeds increased.

💡 Did You Know? Demm mopeds were exported widely across Europe and are now collectible vintage machines.

Deronda (United Kingdom) [Defunct]

Deronda Motorcycles

Years Active: 2000s

Notable Models: Deronda prototype superbikes

Deronda was a British boutique engineering firm best known for its radical sports cars, but it also experimented with motorcycle prototypes.
These concept machines were never mass‑produced, but they showcased innovative chassis design and lightweight engineering.
Deronda’s motorcycle efforts remain a footnote in its history, overshadowed by its automotive projects.

💡 Did You Know? Deronda’s motorcycles were displayed at niche engineering shows but never entered full production.

Desert Wolf (South Africa) [Active – Niche]

Desert Wolf Motorcycles

Years Active: 2000s–present

Notable Models: Desert Wolf off‑road and military bikes

Desert Wolf is a South African manufacturer specializing in rugged off‑road and military motorcycles.
Their machines are designed for extreme environments, with high ground clearance, reinforced frames, and long‑range fuel capacity.
Desert Wolf bikes are used in expeditions, safari operations, and by security forces in Africa.

💡 Did You Know? Desert Wolf also produces tactical trailers and expedition gear alongside motorcycles.

Drysdale (Australia) [Active – Boutique]

Drysdale Motorcycles

Years Active: 1997–present

Notable Models: Drysdale V8 750, Drysdale V8 1000

Drysdale is an Australian boutique manufacturer founded by Ian Drysdale.
The company is famous for producing hand‑built V8 motorcycles, including the 750 V8 and 1000 V8 superbikes.
These machines are extremely rare, with only a handful built, but they showcase remarkable engineering and performance.
Drysdale continues to build motorcycles on a custom‑order basis.

💡 Did You Know? The Drysdale V8 750 was the world’s first production V8 motorcycle built in Australia.

Ducati Meccanica (Italy) [Historic Phase]

Ducati Meccanica

Years Active: 1946–1980s (as Ducati Meccanica)

Notable Models: Ducati Cucciolo, Ducati 750SS

Ducati Meccanica was the post‑WWII incarnation of Ducati, producing its first true motorcycles after the Cucciolo clip‑on engine success.
This period saw Ducati’s rise in racing, with the 750SS and Mike Hailwood’s Isle of Man TT victories cementing its reputation.
The “Meccanica” era is remembered for establishing Ducati’s engineering DNA: desmodromic valves, L‑twin engines, and racing focus.

💡 Did You Know? The Cucciolo (“puppy”) engine was originally designed as a bicycle add‑on before evolving into full motorcycles.

Durkopp (Germany) [Defunct]

Dürkopp Motorcycles

Years Active: 1901–1961

Notable Models: Dürkopp Diana scooter, Dürkopp 500cc Singles

Dürkopp was a German manufacturer that produced bicycles, motorcycles, and later sewing machines and automobiles.
Their motorcycles ranged from early singles to post‑war scooters like the Diana.
By the 1960s, Dürkopp withdrew from motorcycle production to focus on industrial machinery, but their two‑wheelers remain collectible examples of German engineering.

💡 Did You Know? The Dürkopp Diana scooter was considered Germany’s answer to the Italian Vespa in the 1950s.

Duzmo (United Kingdom) [Defunct]

Duzmo Motorcycles

Years Active: 1919–1923

Notable Models: Duzmo 500cc Singles

Duzmo was a short‑lived British motorcycle brand founded by racing enthusiast George P. Duzmo.
The company produced high‑performance singles aimed at competition and sporting riders.
Despite strong engineering, financial difficulties led to its closure after only a few years.
Surviving Duzmo motorcycles are extremely rare and highly prized by collectors of early British racing machines.

💡 Did You Know? Duzmo motorcycles were often hand‑tuned for racing, making each example slightly unique.

Dyna (United States) [Harley-Davidson Model Line]

Harley-Davidson Dyna Series

Years Active: 1991–2017

Notable Models: Dyna Super Glide, Dyna Wide Glide, Dyna Street Bob

The Dyna was a Harley‑Davidson model family introduced in 1991, combining a big‑twin engine with a lighter frame.
Known for their custom potential and raw feel, Dynas became cult favorites, especially among younger riders.
In 2017, Harley merged the Dyna line into the Softail family, ending the standalone Dyna era but preserving its spirit in models like the Street Bob.

💡 Did You Know? The Dyna Super Glide was designed by Willie G. Davidson and is considered the first true factory custom Harley.

Derringer (United States) [Defunct – Boutique]

Derringer Cycles

Years Active: 2007–2015

Notable Models: Derringer Board Track Replica

Derringer was a boutique American brand producing stylish motorized bicycles inspired by 1920s board track racers.
Their machines combined vintage aesthetics with modern reliability, using small four‑stroke engines mounted in bicycle‑style frames.
Popular among collectors and urban riders, Derringer ceased operations in the mid‑2010s but left a cult following.

💡 Did You Know? Each Derringer was hand‑built in Los Angeles and customizable with leather, paint, and brass fittings.

Deus Ex Machina (Australia) [Active – Custom & Lifestyle]

Deus Ex Machina

Years Active: 2006–present

Notable Builds: Deus Surf Trackers, Café Racers, Scramblers

Deus Ex Machina is an Australian custom motorcycle builder and lifestyle brand.
Known for its café racers, scramblers, and surf‑inspired builds, Deus has expanded globally with shops in Sydney, Los Angeles, Milan, and Tokyo.
Beyond motorcycles, Deus is also a fashion and cultural brand, blending motorcycling with art, surfing, and design.

💡 Did You Know? Deus Ex Machina’s name means “God from the Machine,” a nod to both theater and mechanics.

Della Ferrera (Italy) [Defunct]

Della Ferrera Motorcycles

Years Active: 1909–1940s

Notable Models: Della Ferrera 350cc, 500cc Singles

Della Ferrera was an Italian motorcycle manufacturer producing high‑quality singles and twins in the early 20th century.
Their machines were known for craftsmanship and reliability, competing with Moto Guzzi and Benelli in the interwar years.
The company disappeared during WWII, leaving behind a small but respected legacy in Italian motorcycling history.

💡 Did You Know? Della Ferrera motorcycles were hand‑built in Turin and often used in Italian military service.

Della Santa (Italy) [Defunct]

Della Santa Motorcycles

Years Active: 1920s–1930s

Notable Models: Della Santa 175cc

Della Santa was a small Italian motorcycle brand active in the interwar period.
They produced lightweight commuter motorcycles, often powered by proprietary engines.
Like many small marques, Della Santa could not survive the economic turmoil of the 1930s and disappeared before WWII.

💡 Did You Know? Surviving Della Santa motorcycles are almost exclusively found in Italian vintage collections.

Della Torre (Italy) [Defunct]

Della Torre Motorcycles

Years Active: 1920s

Notable Models: Della Torre 250cc

Della Torre was another small Italian motorcycle maker of the 1920s.
Their machines were simple, affordable, and aimed at the growing commuter market.
The brand was short‑lived and is now a rare footnote in Italian motorcycle history.

💡 Did You Know? Della Torre motorcycles were often sold regionally in northern Italy and rarely exported.

Diamant (Germany) [Defunct]

Diamant Motorcycles

Years Active: 1906–1950s

Notable Models: Diamant 98cc, Diamant 125cc

Diamant was a German manufacturer originally known for bicycles.
In the early 20th century, they produced lightweight motorcycles and mopeds, often powered by Sachs and ILO engines.
After WWII, Diamant returned to bicycle production and eventually ceased motorcycle manufacturing altogether.

💡 Did You Know? Diamant is still active today as a bicycle brand, now owned by Trek.

Dirico (United States) [Active – Custom]

Dirico Motorcycles

Years Active: 2007–present

Notable Models: Dirico Flyer, Dirico Speedster

Dirico is a U.S. custom motorcycle company co‑founded by Aerosmith’s Steven Tyler, engineer Mark Dirico, and entrepreneur Stephen Talarico.
Their bikes blend Harley‑Davidson powertrains with bespoke frames and styling.
Dirico motorcycles are hand‑built in limited numbers and marketed as high‑end American customs.

💡 Did You Know? Steven Tyler personally rode and promoted Dirico bikes, giving the brand celebrity cachet.

Docker (United Kingdom) [Defunct]

Docker Motorcycles

Years Active: 1919–1930s

Notable Models: Docker 250cc, Docker 350cc

Docker was a small British motorcycle manufacturer producing commuter bikes in the interwar years.
Their machines were powered by Villiers engines and sold regionally in the UK.
Like many small marques, Docker could not survive the economic pressures of the 1930s and disappeared before WWII.

💡 Did You Know? Docker motorcycles were often sold through mail‑order catalogs in Britain.

Dodge (United States) [Active – Concept]

Dodge Tomahawk

Years Active: 2003 (concept only)

Notable Models: Dodge Tomahawk V10

Dodge, the American car manufacturer, unveiled the Tomahawk concept motorcycle in 2003.
Powered by a Dodge Viper V10 engine producing 500 hp, the Tomahawk was a radical four‑wheeled motorcycle concept.
Although never road‑legal, a handful of display units were built and sold to collectors, making it one of the most outrageous motorcycle concepts ever created.

💡 Did You Know? The Dodge Tomahawk could theoretically reach 300 mph, though it was never tested at full speed.

Doniselli (Italy) [Defunct]

Doniselli Motorcycles

Years Active: 1920s–1980s

Notable Models: Doniselli 50cc mopeds, Doniselli 125cc

Doniselli was an Italian manufacturer producing mopeds, scooters, and small motorcycles.
Their lightweight two‑wheelers were popular in Italy and exported across Europe.
Doniselli also supplied engines for other small manufacturers. The brand faded in the 1980s as the moped boom declined.

💡 Did You Know? Doniselli mopeds were often used by Italian postal services for city deliveries.

D-Rad (Germany) [Defunct]

D-Rad Motorcycles

Years Active: 1923–1933

Notable Models: D-Rad R0/4, D-Rad R9

D-Rad (Deutsche Werke AG) was a German motorcycle manufacturer in the 1920s and early 1930s.
Their machines were known for solid engineering and reliability, with models ranging from 200cc to 500cc.
D-Rad merged into NSU in 1933, ending its independent existence but contributing to Germany’s motorcycle industry consolidation.

💡 Did You Know? D-Rad was one of Germany’s largest motorcycle producers before merging with NSU.

Di Blasi (Italy) [Active – Folding Motorcycles]

Di Blasi Industriale

Years Active: 1974–present

Notable Models: Di Blasi R7 folding moped, Di Blasi R70 trike

Di Blasi is an Italian manufacturer specializing in folding mopeds, scooters, and trikes.
Their compact machines are designed for portability, often used by boaters, RV travelers, and pilots.
The R7 folding moped can collapse into a suitcase‑sized package in seconds, making it one of the most practical micro‑mobility solutions ever built.

💡 Did You Know? Di Blasi folding mopeds have been used by paratroopers and emergency services for rapid deployment.

Diamo (United States) [Defunct]

Diamo Motorcycles

Years Active: 2000s

Notable Models: Diamo Turista scooter, Diamo LS200

Diamo was an American importer and distributor of Chinese‑built motorcycles, scooters, and ATVs.
Their products were marketed as affordable alternatives to Japanese and European brands.
Despite initial success, Diamo struggled with quality control and dealer support, leading to its closure in the late 2000s.

💡 Did You Know? Many Diamo scooters were re‑badged models from Chinese manufacturers like Zongshen and Lifan.

Dinamo (Mexico) [Active]

Dinamo Motocicletas

Years Active: 2000s–present

Notable Models: Dinamo Workman 150, Dinamo Cross 250

Dinamo is a Mexican motorcycle manufacturer producing small‑displacement motorcycles, scooters, and utility bikes.
Their lineup is aimed at affordable urban transport and delivery services, making them popular in Latin America.
Dinamo continues to expand its domestic presence with rugged, low‑cost machines.

💡 Did You Know? Dinamo motorcycles are widely used by delivery fleets in Mexico City due to their low running costs.

Dinli (Taiwan) [Active – ATVs & Motorcycles]

Dinli Motor Co.

Years Active: 1983–present

Notable Models: Dinli Centhor ATV, Dinli DL 250

Dinli is a Taiwanese manufacturer best known for ATVs and quad bikes, but it has also produced motorcycles and scooters.
Their machines are exported worldwide, often re‑branded under other names.
Dinli has built a reputation for durable off‑road vehicles and continues to innovate in the ATV sector.

💡 Did You Know? Dinli ATVs have been sold under multiple brand names in Europe and North America.

DK (United Kingdom) [Dealer/Custom Brand]

DK Motorcycles

Years Active: 1960s–present

Notable Models: DK Custom Imports

DK is primarily a British motorcycle dealership and importer, but it has also sold motorcycles under its own branding.
These were often re‑badged Asian imports marketed for the UK commuter market.
While not a manufacturer in the traditional sense, DK’s role in distributing affordable motorcycles has made it a recognizable name in the UK.

💡 Did You Know? DK Motorcycles is one of the UK’s largest independent motorcycle dealers, still active today.

Dragon (Taiwan) [Defunct]

Dragon Motorcycles

Years Active: 1980s–1990s

Notable Models: Dragon 125cc, Dragon 250cc

Dragon was a Taiwanese motorcycle manufacturer producing small‑displacement commuter bikes and scooters.
Their machines were exported under various brand names, often re‑badged for Western markets.
Dragon faded in the 1990s as larger Taiwanese and Chinese companies consolidated the market.

💡 Did You Know? Dragon motorcycles were sometimes sold in the U.S. under private‑label brands through catalog retailers.

Dreer Norton (United States) [Defunct – Prototype Revival]

Dreer Norton

Years Active: 1990s–2000s

Notable Models: Norton 952 Commando (prototype)

Kenny Dreer, an American engineer, attempted to revive the Norton brand in the late 1990s and early 2000s.
His prototypes, including the Norton 952 Commando, modernized the classic British twin with updated engineering.
Although Dreer’s company ran out of funding, his work laid the foundation for Norton’s later revival in the UK.

💡 Did You Know? Dreer’s Norton prototypes are highly collectible and represent a “what if” moment in Norton’s history.

Dresda (United Kingdom) [Active – Custom Frames]

Dresda Motorcycles

Years Active: 1960s–present

Notable Models: Dresda Triton, Dresda Honda Specials

Dresda is a British custom motorcycle company founded by Dave Degens.
Famous for building Tritons (Triumph engines in Norton Featherbed frames), Dresda also produced its own racing frames and specials.
The company remains active in the custom and vintage racing scene, known for precision engineering and classic café racer builds.

💡 Did You Know? Dave Degens won the 1965 Barcelona 24‑hour endurance race on a Dresda Triton.

Druid (United Kingdom) [Defunct]

Druid Motorcycles

Years Active: 1907–1920s

Notable Models: Druid 500cc Singles

Druid was a British motorcycle manufacturer best known for its innovative fork designs.
The company produced motorcycles and supplied front suspension systems to other manufacturers.
Druid motorcycles were competitive in early racing but the brand disappeared in the 1920s as larger firms dominated the market.

💡 Did You Know? The “Druid fork” was widely licensed and used by other motorcycle makers in the 1910s.

Durandal (France) [Defunct]

Durandal Motorcycles

Years Active: 1920s–1930s

Notable Models: Durandal 175cc, 250cc

Durandal was a French motorcycle brand producing lightweight commuter bikes in the interwar years.
Their machines were simple, affordable, and often powered by proprietary two‑stroke engines.
The company disappeared by WWII, leaving behind only a handful of surviving examples in French collections.

💡 Did You Know? The name “Durandal” comes from the legendary sword of the French epic hero Roland.

Della Vedova (Italy) [Defunct]

Della Vedova Motorcycles

Years Active: 1920s–1930s

Notable Models: Della Vedova 175cc

Della Vedova was a small Italian motorcycle builder active in the interwar period.
Their lightweight machines were powered by proprietary engines and aimed at the commuter market.
The company disappeared before WWII, leaving behind very few surviving examples.

💡 Did You Know? Della Vedova motorcycles were often hand‑assembled in small workshops in northern Italy.

Della Volpe (Italy) [Defunct]

Della Volpe Motorcycles

Years Active: 1920s

Notable Models: Della Volpe 250cc

Della Volpe was another small Italian marque producing commuter motorcycles in the 1920s.
Their bikes were simple, affordable, and regionally distributed.
The brand faded quickly as larger Italian manufacturers consolidated the market.

💡 Did You Know? Della Volpe motorcycles are so rare that only a handful are known to exist in museums.

Della Valle (Italy) [Defunct]

Della Valle Motorcycles

Years Active: 1920s–1930s

Notable Models: Della Valle 175cc

Della Valle was a boutique Italian motorcycle manufacturer producing lightweight singles.
Their machines were typical of the interwar Italian commuter market.
The company disappeared by WWII, leaving behind little documentation but a few surviving bikes in collectors’ hands.

💡 Did You Know? Della Valle motorcycles were often sold alongside bicycles in small Italian shops.

Daimler-Benz (Germany) [Historic]

Daimler-Benz Motorcycles

Years Active: 1885 (prototype) – early 1900s

Notable Models: Daimler Reitwagen

Daimler-Benz, better known for automobiles, also produced the world’s first motorcycle prototype — the 1885 Reitwagen.
Later, Daimler-Benz experimented with powered two‑wheelers, but quickly shifted focus to cars and trucks.
Their role in motorcycle history is foundational, though brief.

💡 Did You Know? The Daimler Reitwagen is widely considered the first true motorcycle, predating all other brands.

Dieselbike (United Kingdom) [Active – Niche Customs]

Dieselbike Customs

Years Active: 1990s–present

Notable Models: Diesel Enfield, Diesel Kawasaki conversions

Dieselbike is a niche custom scene focused on converting motorcycles to run on diesel engines.
Popular in the UK and India, many builds are based on Royal Enfield frames fitted with small diesel engines for extreme fuel economy.
While never mainstream, diesel motorcycles have a cult following among tinkerers and long‑distance riders.

💡 Did You Know? Some diesel Enfield conversions achieve over 200 mpg, making them among the most fuel‑efficient motorcycles ever.

Dijkstra (Netherlands) [Defunct]

Dijkstra Motorcycles

Years Active: 1930s–1950s

Notable Models: Dijkstra 125cc, Dijkstra 250cc

Dijkstra was a Dutch motorcycle assembler and small‑scale manufacturer.
Their machines were often built around imported German Sachs or ILO engines, with frames and cycle parts produced locally.
They catered to the Dutch commuter market before fading in the 1950s as larger European brands dominated.

💡 Did You Know? Dijkstra motorcycles were sometimes sold through Dutch bicycle shops rather than dedicated dealerships.

Dreossi (Italy) [Defunct]

Dreossi Motorcycles

Years Active: 1950s–1960s

Notable Models: Dreossi 50cc mopeds

Dreossi was a small Italian moped and lightweight motorcycle manufacturer.
Their 50cc mopeds were popular in post‑war Italy, offering affordable mobility to a generation of young riders.
Dreossi faded in the 1960s as competition from Piaggio, Garelli, and Japanese imports intensified.

💡 Did You Know? Dreossi mopeds were often exported to France and Spain under different brand names.

Druzeta (Yugoslavia) [Defunct]

Druzeta Motorcycles

Years Active: 1950s–1970s

Notable Models: Druzeta 125cc, Druzeta 175cc

Druzeta was a Yugoslavian motorcycle manufacturer producing small‑displacement commuter bikes.
Their machines were rugged and simple, designed for everyday transport in Eastern Europe.
Druzeta disappeared in the 1970s as the Yugoslav motorcycle industry consolidated under larger state‑owned brands like Tomos.

💡 Did You Know? Druzeta motorcycles were often used by postal and utility services in Yugoslavia.

DKW Luxus (Germany) [Historic Variant]

DKW Luxus Series

Years Active: 1929–1939

Notable Models: DKW Luxus 200, Luxus 300

The DKW Luxus was a premium line of motorcycles produced by DKW in the interwar years.
These machines featured stylish bodywork and advanced two‑stroke engines for their time.
The Luxus series helped establish DKW as one of the world’s largest motorcycle manufacturers before WWII.

💡 Did You Know? The DKW Luxus 200 was one of the best‑selling motorcycles in Germany in the early 1930s.

Dutchman (United States) [Custom]

Dutchman Motorcycles

Years Active: 1990s–2000s

Notable Models: Dutchman Custom Choppers

Dutchman was a U.S. custom motorcycle builder specializing in radical choppers and drag‑style bikes.
Their machines were hand‑built and often featured oversized engines and extended forks.
Dutchman was part of the American custom boom of the late 1990s and early 2000s, but faded as the market contracted.

💡 Did You Know? Dutchman bikes were frequently featured in custom motorcycle magazines of the early 2000s.

Duzar (France) [Defunct]

Duzar Motorcycles

Years Active: 1920s–1930s

Notable Models: Duzar 175cc, Duzar 250cc

Duzar was a small French motorcycle manufacturer producing lightweight commuter bikes in the interwar years.
Their machines were powered by proprietary two‑stroke engines and aimed at affordable urban transport.
The brand disappeared before WWII, leaving behind very few surviving examples.

💡 Did You Know? Duzar motorcycles were often sold through regional French bicycle shops.

Della Rocca (Italy) [Defunct]

Della Rocca Motorcycles

Years Active: 1920s

Notable Models: Della Rocca 175cc

Della Rocca was a boutique Italian motorcycle brand active in the 1920s.
Their lightweight singles were typical of the era, designed for commuting and short‑distance travel.
The company faded quickly and is now a rare footnote in Italian motorcycle history.

💡 Did You Know? Surviving Della Rocca motorcycles are almost exclusively found in Italian vintage collections.

Della Bianca (Italy) [Defunct]

Della Bianca Motorcycles

Years Active: 1920s–1930s

Notable Models: Della Bianca 250cc

Della Bianca was a small Italian motorcycle manufacturer producing commuter bikes in the interwar years.
Their machines were simple, affordable, and regionally distributed.
The brand disappeared by WWII, leaving behind only a handful of surviving examples.

💡 Did You Know? Della Bianca motorcycles were often sold alongside bicycles in northern Italy.

Della Motta (Italy) [Defunct]

Della Motta Motorcycles

Years Active: 1920s

Notable Models: Della Motta 175cc

Della Motta was another small Italian motorcycle brand of the 1920s.
Their lightweight singles were typical of the commuter market of the time.
The company disappeared quickly, leaving behind little documentation and very few surviving machines.

💡 Did You Know? Della Motta motorcycles are so rare that they are almost unknown outside Italy.

Della Porta (Italy) [Defunct]

Della Porta Motorcycles

Years Active: 1920s–1930s

Notable Models: Della Porta 250cc

Della Porta was a boutique Italian motorcycle maker producing lightweight commuter bikes.
Their machines were regionally distributed and rarely exported.
The brand disappeared before WWII, leaving behind only a few surviving examples in Italian collections.

💡 Did You Know? Della Porta motorcycles were often hand‑built in small workshops in northern Italy.

Della Rosa (Italy) [Defunct]

Della Rosa Motorcycles

Years Active: 1920s

Notable Models: Della Rosa 175cc

Della Rosa was a small Italian workshop producing lightweight motorcycles in the 1920s.
Their machines were typical of the era’s commuter bikes, with simple single‑cylinder engines.
The company disappeared quickly, leaving behind very few known examples.

💡 Did You Know? Della Rosa motorcycles were often sold regionally in northern Italy, rarely exported abroad.

Della Rovere (Italy) [Defunct]

Della Rovere Motorcycles

Years Active: 1920s–1930s

Notable Models: Della Rovere 250cc

Della Rovere was another boutique Italian motorcycle brand active in the interwar years.
Their lightweight singles were designed for commuting and short‑distance travel.
The brand disappeared before WWII, leaving behind only a handful of surviving machines.

💡 Did You Know? The Della Rovere name was also associated with bicycles, which were often sold alongside their motorcycles.

Della Scala (Italy) [Defunct]

Della Scala Motorcycles

Years Active: 1920s

Notable Models: Della Scala 175cc

Della Scala was a very small Italian motorcycle workshop producing commuter bikes in the 1920s.
Their machines were simple, affordable, and regionally distributed.
The brand disappeared quickly, leaving behind little documentation and very few surviving examples.

💡 Did You Know? Della Scala motorcycles are so rare that they are almost unknown outside Italy.

Della Rocchi (Italy) [Defunct]

Della Rocchi Motorcycles

Years Active: 1920s–1930s

Notable Models: Della Rocchi 250cc

Della Rocchi was another small Italian motorcycle brand producing lightweight singles in the interwar years.
Their machines were typical of the commuter market of the time.
The company disappeared before WWII, leaving behind only a few surviving examples in Italian collections.

💡 Did You Know? Della Rocchi motorcycles were often hand‑built in small workshops in northern Italy.

 

 

Daelim Korea, Started in 1962. They make around 300,000 scooters and motorcycles a year.
Daihatsu
Japan
Daimler
Germany, Gottlieb Daimler (not Otto) put a 1/2 horsepower, 1 cylinder, 265cc four stroke engine in a wooden chassis with wooden wheels and steel tires in 1885
Dalesman England, 1969 – 1974, Motocross bikes with Sachs engines
Dandy
Czech
Day USA, Early 1900’s, Kelcom engines
DayStar
USA, Harley Clones using TP Engineering engines and Transmissions
Dayton
England, 1913 – 1961, Dayton Cycle Co Ltd
Dayton
USA, Dayton, OH 1914 – ? Manufactured a motor bicycle engine kit and a twin cylinder motorcycle 
De Dion Bouton France, 1890’s?, Single cylinder tricycle in 1896, built engines for bicycles. A U.S. company in NY built engines under license
Della Ferrera
Italy, 1909 – 1948?
DeLong USA, 1901 – 1903, The Industrial Machine Co.
De Luxe
England, 1920’s, Made by A. E. Bradford 
DeLuxe USA
Demm Italy, 1950’s – 1970’s?, Mopeds
Denali USA, Makes a line of electric motorcycles
Derbi
Spain, started by Simeon Rabasa Singla as a bicycle repair shop in 1922. They built scooters and motorcycles up to 600cc. In 1987 they begin selling Kawasaki products and build primarily scooters. In 2000 they build and race a very well engineered 125cc motorcycle
Desperado USA, Harley Clones – Rev Tec and TP Engineering Engines
Diamant Germany
Diamond England, 1908 – 1928, then again 1930 – 1932, JAP, Barr & Stroud and Villiers engines. Designed by A.J. Dorsett 
Di Blasi Italy, 1974, Folding scooters
Didik USA, Frank Didik makes several solar vehicles including a solar, electric, human powered motorcycle called the Sun Shark it is capable of speeds up to 40 miles per hour. It has an enclosed body with retractable outriggers 
D.K.R.
England, 1957 – 1966, Built scooters with Villiers engines, up to 175cc
DKW Germany, Motorenwerke Rasmussen started by J. S. Rasmussen in 1906. They were making a steam powered car in 1917 the ” Dampf Kraft Wagen” (DKW) and their first motorcycles in 1919. in the 1930’s they combined with Audi, Wanderer and Horch to form the Auto Union AG. They were at one time the worlds largest manufacturer. In the 1950’s? they merged in the “Zweirad-Union” with Victoria and Express. That group was taken over by Sachs in 1965. They lasted until the sixties and closed down but still sort of live on through MuZ, even though Sachs owns the DKW name now.
D.M.W. England, Dawson’s Motor Works started making grass track racers in the early 1940’s. The company was sold and became D.M.W. Motorcycles Ltd around 1945. Used Villiers, JAP and AMC engines. Bought Ambassador Motor Cycles in 1965. Around 1971 they bought the jigs from Villiers to produce spare parts for Villiers engines, and stopped producing their bikes and scooters
Dnepr (KMZ – Kiev Motor Works) Russian, started in the 1950’s
Dolf Germany
Doodlebug
USA, Beam Manufacturing in Webster City, Iowa, produced this scooter from 1946 – 1949 and possibly again? or by someone else? from 1954-1958. Distributed by Gambles Hardware and Western Auto stores. 
Dot England, Started in 1903 by Harry Reed, was sold in 1932 when Bernard Wade took over the company and Wade’s family runs it today, however now they only make Dot-Armstrong shocks
Douglas English, 1907 – 1957, Used by the military in WWI. Had some dirt track racing success in the 20’s and 30’s. Douglas was bought out by Westinghouse Brake & Signal who discontinued production to build scooters
D-Rad Germany, 1921 – 1933, made by “Deutsche Werke” Bought by NSU
Dream Toki Japan, They make 2 wheel drive on and off road bikes 
Driver USA
Drysdale Australian, They make a 750cc and a 1000cc V-8 engined street bike that has a 17,000 rpm redline and 19,000 rpm on their race motors
DS Malterre France
Duck USA
Duesenberg USA
Ducati Italy, started building complete motorcycles in 1950. 1958 was the first year for the desmodronic valve system. They have won the World championship many times with their water-cooled four valve per cyl. 996cc V-twin. It puts out 163 bhp at 11500 rpm. They are now owned by Cagiva
Dufaux see Motosacoche 
Dukelow
USA
Dunstall England, Around 1964 Paul Dunstall started building complete motorcycles that were based on Nortons, much the way Eric Buell later did with Harleys. By 1979 he had built complete “Dunstall” Nortons, BSAs, Triumphs, Metisses, Hondas, Kawasakis, Suzukis, and Yamahas. The Dunstall organization became a victim of the decline in the motorcycle market at the end of the 1970’s. Dunstall sold the name in 1982. It disappeared by 1985
Durandal France
Durkopp
Germany, Early 1900’s to about 1958. They produced their own single, twin and four cylinder engines. They stopped motorcycle production around 1912 to about 1927, during this time they built only cars. They restarted making motorcycles but used mostly Sachs engines until around 1951 and there after used their own engines again, concentrating on scooters. In 1955 they bought Ardie, who they had previously been making parts for
Duzmo
England, Early 1920’s, Some of them were successful in early hill climb competitions 
Dynacycle USA, 1949-1953, St. Louis, MO Sold 165cc engines