Many of today’s pro riders started their careers on the YZ85. And when you take a look at what this bike has to offer you can see why. Its high performance 85cc liquid-cooled 2-stroke engine is equipped with Yamaha’s race-bred YPVS that gives you holeshot-winning acceleration.
Review – Key Features – Features & Benefits – Specifications
2025 Yamaha YZ85: VICTORY: NEVER GIVEN, ALWAYS EARNED.
Introducing the new 2025 Yamaha YZ85…
Built for fun. Built to win. The renowned YZ85 serves up big‑bike specs in a small‑bike package.
Featuring the Yamaha Power Valve System (YPVS), fully-adjustable suspension, six-speed transmission and adjustable ergonomics, the YZ85 is ready to win races straight off the dealership floor.
Victory: Never given, always earned.
You’ve developed your skills and re ned your style on smaller bikes – and now you’re moving on to the next stage. Choosing the right motocross bike is an important decision.
And when you see what the YZ85 has to o er, it’s clear that this is the only way to go.
Yamaha has been building winning 2-strokes for 50 years – and the YZ85 has been built using all of the knowledge gained over many years racing at Grand Prix level. Equipped with fully adjustable KYB suspension, large diameter disc brakes and lightweight wheels, this bike has got what it takes to win.
For a wide spread of power the punchy and reliable 85cc 2-stroke engine is equipped with the Yamaha Power Valve System – and a high-capacity radiator and durable 6-speed transmission are built to handle the toughest races. And with its dynamic slimline bodywork and race-developed ergonomics, the YZ85 is the bike that can turn your dreams into reality – and show the world you’re truly serious about winning.
Victory: Never given, always earned.
Yamaha has been building championship winning 2-stroke motocross bikes for 50 years. Along the way we’ve won just about every title worth winning. The latest YZ85 comes with the same advanced race-bred technology that goes into the company’s adult motocross machines, and is ready to power you into the victorYZone.
Many of today’s pro riders started their careers on the YZ85. And when you take a look at what this bike has to offer you can see why. Its high performance 85cc liquid-cooled 2-stroke engine is equipped with Yamaha’s race-bred YPVS that gives you holeshot-winning acceleration. And its adjustable suspension systems are built to master the toughest tracks.
The YZ85 also comes with a lightweight aluminum rear frame and aluminum swingarm, large diameter disc brakes and a high-eficiency air intake – just like the bigger YZ125. For maximum rider control there’s a at seat, slim body, and an ergonomic fuel tank. And with the Icon Blue color and new graphics completing the looks, the YZ85 is ready to power you to the next level.
2025 Yamaha YZ85 Totalmotorcycle.com Key Features
- Yamaha Power Valve System (YPVS) for broad, tractable power
- Potent, easy-to-service two-stroke engine
- Smooth-shifting, six-speed, close-ratio transmission
- Compact, semi-double-cradle, single-backbone steel frame
- Race-ready, fully adjustable suspension
- Aggressive YZ styling
2025 Yamaha YZ85 Totalmotorcycle.com Features and Benefits
TOP FEATURES
YPVS™ Two-Stroke Power
The 85cc liquid-cooled, two-stroke engine features the Yamaha Power Valve System (YPVS™) for increased low- and mid-range power without losing peak power at high rpms, reducing the need for frequent shifting.
Fully-Adjustable Suspension
Lightweight 36mm KYB® inverted cartridge fork features low-friction outer tubes, external compression and rebound damping adjustability, paired with a race-proven fully-adjustable KYB® rear shock. Both offer loads of suspension travel to tackle serious off-road competition.
Optimized Chassis Design
Built for demanding junior racers, the YZ85’s chassis is optimized for strength, rigidity and overall handling stability. The aluminum swingarm offers refined balance between longitudinal and torsional rigidity, and the removable rear subframe constructed from lightweight, high-strength aluminum reduces weight.
Performance-Minded Ergonomics
The flat seat and narrow fuel tank design, along with smoothly integrated body panels and slim shroud width, combine to enable greater freedom of movement forward and back, allowing the rider to easily shift body weight for increased control and confidence.
High-Spec Wheels & Brakes
Stylish blue, lightweight 17-inch front and 14-inch rear rims are durable, reduce unsprung weight for optimal suspension performance, and come wrapped in Dunlop® MX3S tires for exceptional traction. Big 220mm and 190mm disc brakes offer precise control and outstanding stopping power.
High-Quality Embedded Graphics
Inspired by its YZ125 sibling, the aggressive graphics scheme highlights the YZ’s unmatched racing pedigree. Premium Yamaha graphics are embedded to provide excellent durability and scratch resistance.
ENGINE
Potent YPVS™ Two-Stroke Engine
The 85cc liquid-cooled, two-stroke engine features the Yamaha Power Valve System (YPVS™) for broad power across the rev range without losing peak power at high rpms, reducing the need for frequent shifting.
Tuned Crankcase & Intake
The crankcase design features a spacer-style reed valve intake for improved air/fuel flow, which inhales through a 28mm Hitachi Astemo® Keihin flat-slide carburetor for seamless throttle response.
Tuned Expansion Chamber
Carefully matched to suit the YPVS™-equipped engine, the exhaust expansion chamber optimizes gas flow for enhanced power delivery, especially in the low- and mid-range.
Durable Transmission
The transmission features oversized gears to provide enhanced engagement and smoother shifts.
High Capacity Radiator
Lightweight radiator has large cores and louvers. Water pump features a cast aluminum (vs. resin) impeller for maximum cooling efficiency.
Advanced Intake Design & High-Flow Airbox
Advanced intake design allows for a straighter, more efficient draw of air into the intake tract. High-flow airbox ensures excellent air filter performance and easy maintenance.
CHASSIS/SUSPENSION
Fully-Adjustable Fork
The lightweight 36mm KYB® inverted cartridge fork features 10.8 inches of travel with compression and rebound damping adjustability. Complete with low-friction outer tubes and internals, the damping settings offer enhanced performance across a range of conditions and rider abilities.
Fully-Adjustable Shock
Rear suspension features fully adjustable KYB® link-type shock with race-tested valving and 11.1 inches of travel. The progressive linkage-type design improves bottoming resistance, allowing racers to charge harder and improve lap times.
Optimized Chassis Design
Built for demanding junior racers, the YZ85’s chassis is optimized for strength, rigidity and overall handling stability. The aluminum swingarm offers refined balance between longitudinal and torsional rigidity, and the removable rear subframe constructed from lightweight, high-strength aluminum reduces weight.
Large-Diameter Brakes
Big wave-style brake discs offer improved self-cleaning and cooler-running performance. The 220mm front disc and 190mm rear disc deliver strong, precise stopping power. Rear brake master cylinder also includes built-in sub-reservoir to provide more linear brake response and increased control.
Lightweight Wheels
Lightweight 17-inch front and 14-inch rear rims are durable and reduce unsprung weight for optimal suspension performance.
High Performance Tires
Dunlop® MX3S tires provide exceptional traction on a variety of tracks and terrain.
ADDITIONAL FEATURES
Adjustable Rider Ergonomics
The four-position adjustable handlebar mounts and taper-style handlebar allow the rider to tune the handlebar position to suit their size and preferences. Flat seat and narrow fuel tank design, along with smoothly integrated body panels and slim shroud width, combine to enable greater freedom of movement for increased control and confidence.
*Manufacturer’s Suggested Retail Price (MSRP) shown. Does not include tax, title, prep or destination charges. Actual prices set by dealer.
**Fuel Economy is estimated.
***Wet weight includes the vehicle with all standard equipment and all fluids, including oil, coolant (as applicable) and a full tank of fuel. It does not include the weight of options or accessories. Wet weight is useful in making real-world comparisons with other models.
2025 Yamaha YZ85 – Totalmotorcycle.com USA Specifications/Technical Details
US MSRP Price: $4,999 USD
Canada MSRP Price: $6,599 CDN
Europe/UK MSRP Price: £ See Dealer for Pricing in GBP (On The Road inc 20% Vat)
ENGINE
| Engine Type | 85cc liquid-cooled 2-stroke; reed-valve inducted |
| Bore x Stroke | 47.5mm x 47.8mm |
| Compression Ratio | 8.2~9.6:1 |
| Fuel Delivery | Hitachi Astemo® Keihin PWK28 carburetor |
| Transmission | 6-speed; multiplate wet clutch |
| Final Drive | Chain |
| Fuel Capacity | 1.3 gal |
CHASSIS
| Suspension/Front | KYB® inverted fork; fully adjustable, 10.8-in travel |
| Suspension/Rear | KYB® single shock; fully adjustable, 11.1-in travel |
| Brakes/Front | Hydraulic disc, 220mm |
| Brakes/Rear | Hydraulic disc, 190mm |
| Tires/Front | 70/100-17 Dunlop® Geomax MX3SF |
| Tires/Rear | 90/100-14 Dunlop® Geomax MX3S |
DIMENSIONS
| LxWxH | 71.7 in x 29.9 in x 44.7 in |
| Seat Height | 33.1 in |
| Wheelbase | 49.4 in |
| Rake (Caster Angle) | 26.3° |
| Trail | 3.5 in |
| Max. Ground Clearance | 12.6 in |
| Fuel Capacity | 1.3 gal |
| Wet Weight*** | 161 lbs |
OTHER
| Warranty | 30 Day (Limited Factory Warranty) |
*Manufacturer’s Suggested Retail Price (MSRP) shown. Does not include tax, title, prep or destination charges. Actual prices set by dealer.
**Fuel Economy is estimated.
***Wet weight includes the vehicle with all standard equipment and all fluids, including oil, coolant (as applicable) and a full tank of fuel. It does not include the weight of options or accessories. Wet weight is useful in making real-world comparisons with other models.
2025 Yamaha YZ85 – Totalmotorcycle.com Canada Specifications/Technical Details
ENGINE 2-stroke, liquid-cooled, crankcase-reed-valve single with YPVS
DISPLACEMENT 85cc
BORE AND STROKE 47.5 x 47.8 mm
COMPRESSION RATIO 8.2-9.6:1
FUEL DELIVERY Keihin PWK28
IGNITION / STARTING CDI / Kick
TRANSMISSION Constant mesh, 6-speed
FINAL DRIVE Chain
CHASSIS
SUSPENSION (FRONT) Fully adjustable KYB 36 mm inverted fork / 275 mm (10.8 in) wheel travel
SUSPENSION (REAR) Fully adjustable KYB shock / 282 mm (11.1 in) wheel travel
BRAKES (FRONT) 220 mm disc / twin-piston caliper
BRAKES (REAR) 190 mm disc / single-piston caliper
TIRES (FRONT) 70/100-17 Geomax MX3SF
TIRES (REAR) 90/100-14 Geomax MX3S
LENGTH 1,820 mm (71.7 in)
WIDTH 760 mm (29.9 in)
HEIGHT 1135 mm (44.7 in)
WHEELBASE 1255 mm (49.4 in)
GROUND CLEARANCE 320 mm (12.6 in)
SEAT HEIGHT 840 mm (33.1 in)
FUEL CAPACITY 5 litres (1.1 imp. gal.)
WET WEIGHT 73 kg (161 lb)
COLOUR(S) Yamaha Racing Blue
2025 Yamaha YZ85 – Totalmotorcycle.com European Specifications/Technical Details
Engine
Engine type Liquid-cooled;Single cylinder;Reed valve with YPVS;2-
stroke
Displacement 85cc
Bore x stroke 47.5 × 47.8 mm
Compression ratio 8,2 – 9,6 : 1
Lubrication system Premix
Clutch type Wet;Multiple Disc
Ignition system CDI
Starter system Kick
Transmission system Constant Mesh;6-speed
Final transmission Chain
Fuel system Keihin PWK28/1
Chassis
Frame Semi double cradle
Front suspension system Telescopic fork
Front travel 275 mm
Rear suspension system Swingarm;(Link type suspension)
Rear travel 287 mm
Front brake Hydraulic Single Disc, Ø220 mm
Rear brake Hydraulic Single Disc, Ø190 mm
Front tyre 70/100-19 42M Tube type
Rear tyre 90/100-16 52M Tube type
Caster angle 26° 00
Trail 99 mm
Dimensions
Overall length 1895 mm
Overall width 760 mm
Overall height 1175 mm
Seat height 885 mm
Wheel base 1285 mm
Minimum ground clearance 360 mm
Wet weight (including full oil and fuel tank) 75 kg
Fuel tank capacity 5.0 L
Oil tank capacity 0.5 L
Manufacturer Specifications and appearance are subject to change without prior notice on Total Motorcycle (TMW).
