Yamaha Announces Full Lineup of 2020 Motocross Bikes

Enter the victorYZone with Yamaha’s Newly Redesigned YZ450F

MARIETTA, Ga. – June 4, 2019 – Yamaha Motor Corp., USA, introduces its complete lineup of race-ready 2020 motocross bikes, including the newly redesigned YZ450F, featuring a new engine, frame, and host of other features to deliver a lighter, more powerful, and better handling motocross experience.

“The 2020 YZ450F features design changes which resulted in a lighter, faster, and more nimble handling machine that will once again raise the bar in the 450 class,” said Steve Nessl, Yamaha’s motorsports marketing manager. “Yamaha’s 2020 lineup of four-stroke motocross bikes boasts the most advanced, race-ready machines of their respective classes.”

Also returning for 2020 is the championship-winning Yamaha YZ250F four-stroke motocross bike, along with Yamaha’s legendary two-stroke lineup featuring the YZ250, YZ125, YZ85 and YZ65.

Welcome to the victorYZone
Yamaha off-road competition bikes offer the very latest technology and performance features designed to make enthusiasts the best riders possible, win races and help riders become one with their machine – putting them in the zone and atop the podium.

New 2020 YZ450F: Tune in to Victory
The new 2020 Yamaha YZ450F has been redesigned to provide a lighter, more powerful, and better handling motocross experience. The new 449cc, liquid-cooled, four-stroke, electric start engine features an all-new compact cylinder head with redesigned combustion chamber shape, steeper valve angles and more aggressive cam profiles. The reward-slanted cylinder houses a higher compression piston with low friction rings attached to a longer connecting rod. The transmission has been refined to provide smoother shifting, and a more efficient crank breather system has been adopted to decrease pumping losses. In all, the lighter, more compact engine produces increased power across the entire RPM range for stronger and more linear pulling power.

The new motor is housed in the latest evolution of Yamaha’s lightweight aluminum bilateral beam frame, which has been redesigned with all-new flex characteristics and provides improved cornering performance, traction and bump reaction to give the rider more confidence to push harder. Other chassis components such as engine mounts, top triple clamp and front axle, as well as the class-leading KYB® suspension with enhanced compression and rebound characteristics were carefully refined to reduce weight while improving handling and performance. To bring the new package to a stop, the 2020 YZ450F features a newly designed front brake caliper, brake pads and front and rear disc. The overall changes of the 2020 YZ450F deliver increased power output with more controllable linear acceleration and lightweight handling characteristics that mimic a YZ250F.

Featuring Yamaha’s advanced racing technology, the new 2020 YZ450F has been updated to give racers the edge right out of the gate. Standard equipment including electric start, a lightweight lithium battery, advanced fuel injection, and a wrap around rear-positioned exhaust deliver powerful and reliable performance while balancing weight for excellent mass-centralization. Racers can achieve quicker, smoother race starts through Yamaha’s Launch Control System, adjust their on-track performance using wireless connectivity through the Yamaha Power Tuner App right from their phone, and now choose between two user defined ECU maps on the fly through the handlebar mounted dual-mode engine map switch.

The new 2020 YZ450F will be available from dealers next month in Team Yamaha Blue and Gray for $9,299 MSRP.

2020 YZ250F: Tune, Race, Win
Last year, the 2019 YZ250F introduced all-new engine, frame, and bodywork designs with features never-before seen on a 250cc class motorcycle to deliver more mid-range and top-end power, and class-leading engine performance. Yamaha’s championship-winning design returns with the 2020 YZ250F.

Sporting an electric start, 250cc, liquid-cooled, four-stroke engine housed in an aluminum bilateral beam frame, and suspended by industry leading KYB spring type forks and KYB rear shock, the 2020 YZ250F provides the ultimate balance of race-winning performance, rideability and comfort. The motorcycle also continues to feature Yamaha’s advanced racing technology including dual-mode switchable engine mapping and wireless connectivity for the Yamaha Power Tuner App.

The 2020 YZ250F will be available from dealers this month in Team Yamaha Blue and Gray for $8,199 MSRP.

2020 YZ125 and YZ250
Yamaha’s YZ125 and YZ250 models return for 2020 to complete Yamaha’s full-size lineup of motocross bikes.  Lightweight aluminum frames, Yamaha’s patented Power Valve System (YPVS™), and reed-valve inducted engines provide an incredible power-to-weight ratio while maintaining Yamaha’s excellent reliability and durability. Both the YZ125 and YZ250 each sport industry leading KYB spring-type fork and KYB rear shock for unmatched comfort and performance on the track.

The 2020 YZ125 and YZ250 will begin arriving at Yamaha dealerships this month in Team Yamaha Blue for $6,499 and $7,399 MSRP, respectively.

2020 YZ85 and YZ65
Yamaha’s 2020 youth models, the YZ85 and YZ65, are ready to tackle the track with winning performance out of the gate. They are respectively powered by confidence-inspiring 85cc and 65cc two-stroke engines featuring YPVS for broad, tractable power across the rev range without losing peak power at high RPM — improving rideability and reducing the need for frequent shifting. Industry-leading 36mm KYB spring type forks and KYB rear shock are fully adjustable for compression and rebound, and contribute to class-leading handling and performance in a wide range of conditions. Four-way, adjustable handlebar positioning as well as lever reach adjustability are designed for ultimate rider comfort regardless of size. Finally, with two-stroke ease of maintenance and Yamaha’s proven durability, the 2020 YZ85 and YZ65 are built to keep kids on the track.

The 2020 YZ85 and YZ65 will both be available from dealers this month in Team Yamaha Blue for $4,599 MSRP.

Yamaha bLU cRU Off-Road Racing Contingency
All 2020 YZ models are once again eligible for Yamaha’s bLU cRU Off-Road Racing Contingency Program, with nearly $5 million for Yamaha bLU cRU riders competing in off-road motorcycle racing. YZ riders can earn contingency payouts via a bLU cRU debit card, receive a 10% rebate on GYTR parts and accessory purchases of up to $1,000, and receive an instant $45 credit

ENGINE

• The updated, fuel-injected engine delivers outstanding engine character with a focus on top-end power delivery.
• “Reversed” liquid-cooled, 250 cc, DOHC, 4-valve (titanium), single-cylinder engine with fuel injection.
  • excellent rideability and controllability
  • broad power from low rpm right through to high rpm with excellent power characteristics
• Rearward-slanted, reversed cylinder design.
  • rearward slant moves a significant amount of rotating weight toward the centre of the chassis, centralizing mass for light, agile handling
• “Reversed” engine design (FI system is front mounted, exhaust exits from rear of cylinder).
  • FI throttle body and air box are front mounted, providing a straight downdraft intake path
  • straight shot intake path provides optimum fuel / air / exhaust flow for excellent power
  • front mounted intake keeps fuel cooler since engine heat has less effect on incoming fuel (cooler fuel is more dense and increases power)
  • design also helps centralize mass for light, agile handling
• 4-valve cylinder head features a 13.8:1 compression ratio.
  • 4-valve design offers optimum flow and excellent power
  • compact combustion chamber provides optimum combustion speed while also reducing heat and power losses
• Lightweight titanium valves.
  • valve, valve spring and lifter dimensions revised for mid-to-high-rpm output
  • 31 mm titanium intake and 25 mm titanium exhaust valves with load reduced valve springs
  • load reduced valve springs reduce internal power losses
  • titanium valves reduce weight and improve performance… titanium valves are 40 to 45 % lighter than steel valves
  • reduced valve weight improves valve train reliability and longevity
  • reduced reciprocating weight allows for a higher rpm limit and better control of the valves
• Automatic cam chain tensioner.
  • reduces maintenance and mechanical engine noise
  • special cam chain “sliders” reduce internal friction losses
• High lift intake and exhaust camshafts.
  • strong power with excellent “control-ability”
  • hollow design reduces weight
• “Liner-less” lightweight aluminum cylinder features a ceramic composite coating applied directly to the aluminum block.
  • ceramic coating sprayed directly on aluminum block, eliminating the need for a heavy liner and therefore reducing weight
  • excellent heat dissipation for consistent power delivery
  • coating enhances the thin film of oil between cylinder and piston, reducing friction and increasing power
• Cylinder “cutaways” allow air “trapped” under the piston to enter a special side chamber (cutaway).
  • reduces horsepower-robbing “pumping losses”
• Light crankcase
  • number of crankcase bolts, bolt length and gasket material reduced for weight reduction
  • “cutaways” reduce horsepower-robbing “pumping losses”
  • crankcase cutaways match cylinder cutaways for maximum efficiency
• Lightweight, short-skirt, forged aluminum piston with bridge-box design.
  • flat-top piston with lateral ribs on both sides of the piston pin area for strength and durability
  • single compression ring and specially designed oil control ring increases the surface contact area for better sealing
  • 2-ring design decreases sliding resistance, reduces weight and provides faster throttle response
• Lightweight piston pin with diamond like coating (DLC).
  • reduces internal friction
• Piston oil cooler jet nozzle directs oil to the desired portion of the cylinder and underside of piston.
  • reduces piston, cylinder and rod temperatures for excellent durability
• Ball bearing style crankshaft.
  • heat treated for strength and durability
  • balance ratio of the crank has been optimized to reduce vibration
• Nickel-chromium-molybdenum connecting rod.
  • excellent strength and durability
  • molybdenum coated thrust washers on either side of the rod to reduce friction
• Lightweight gear driven counter balancer shaft.
  • reduces vibration for improved rider comfort and less rider fatigue
• 5-speed transmission utilizes a 2-bar, floating shift guide system and a 14 mm shift shaft.
  • gears ratios are matched to engine power
  • floating shift guide system provides smooth, positive shifts
  • 14 mm shift shaft provides good durability in the event of a crash
  • gears, dogs and shift mechanisms designed for smooth gear changes and improved durability
• Heavy-duty, clutch with quick access magnesium outer cover and on the fly “barrel” adjuster.
  • quick access, lightweight, magnesium outer cover provides fast and easy clutch access
  • light lever pull for reduced hand fatigue during a long moto
  • works-style lever mounted “barrel adjuster” for on-the-fly clutch lever free play adjustments
• Advanced 44mm Mikuni throttle body fuel injection system.
  • high-pressure electric fuel pump feeds a new 12-hole Denso injector for optimial fuel atomization and air/fuel calibration, improving rideability
  • compact throttle body is 12% lighter than previous unit
  • FI benefits include automatic adjustments to insure the optimum fuel/air ratio regardless of outside air temperature and altitude
  • other benefits include excellent starting and instant throttle response
  • cold start knob also doubles as an idle adjuster
• Injector spray pattern, spray direction and distance to the intake valves have been optimized.
  • forward mounted straight intake tract maximizes benefits of the FI system and improves power output
• Exclusive Power Tuner app.
  • Groundbreaking technology brings the power of the GYTR Power Tuner to your iOS or Android device
  • onboard wifi allows adjustment of air/fuel mixture and ignition timing maps based on track conditions
  • record race log information and monitor a range of data such as maintenance and system diagnosis, engine run time and more
  • CCU is adopted to accommodate new Power Tuner
• Electric Starter System.
  • compact, electric starter system minimizes restart delays on track
  • powered by a high-capacity, ultra-lightweight, four-cell lithium-ion battery for minimal weight
• Two-mode adjustable engine mapping.
  • engine character can be adjusted with the push of a button
• Forward-mounted airbox with features a washable, dual-stage, foam air filter.
  • clip-type fastener reduces maintenance time
  • no tools required to access air filter
  • washable foam filter reduces tune up costs
  • new filter cover with Dzus fastener provides tool-free access
• Wet sump lubrication system with “cartridge-type” oil filter
  • reduces weight (no remote oil tank or oil lines)
  • oil volume is optimized to reduce oil related drag and weight
  • fast and easy oil changes
• Compact, lightweight, single-core, dual radiators.
  • Size and position of radiators optimize cooling during tough race conditions
• Maintenance-free transistor controlled ignition (TCI).
  • produces a strong spark for fast starts
  • provides precise ignition timing / mapping for optimum engine performance at any rpm
• Wrap-around exhaust.
  • exhaust exits from the rear of the engine and circles cylinder body
  • wrap-around design ensures the optimum tuned header length
  • design maximizes exhaust “pulse effect” for excellent power delivery
  • centralizes mass by moving weight closer to the centre of the chassis
• Lightweight, aluminum, re-packable muffler (aka silencer).
  • sound output is 94 dB meeting CMRC and AMA regulations
  • muffler is rebuildable for optimum performance and reduced noise levels
• Special “G” sensor system.
  • shuts down fuel injection system if bike lies on its side for more than 10 seconds
  • no special procedure to re-start the bike… just kick it and go
  • helps prevent costly engine damage

CHASSIS/SUSPENSION

• Compact bilateral beam aluminum frame.
  • frame offers an optimum rigidity balance between strength, rigidity and tuned flex, plus excellent shock absorbing qualities
  • frame design provides excellent rider-machine communication
  • chassis designed for faster and easier cornering, two keys to winning races
• Lightweight, tapered aluminum swingarm.
  • lightweight design reduces unsprung weight for excellent suspension performance
  • excellent rear wheel traction and control
  • large 25 mm rear axle
  • optimized axle shaft collar shape improves feeling of traction
• Lightweight detachable rear sub frame.
  • constructed of square-section, lightweight aluminum pipe with no bends
  • allows easy access when servicing rear suspension components
  • reduces costs in the event of damage
• 48mm, adjustable, inverted, KYB coil-spring-type fork offers 310 mm (12.2 in) of wheel travel.
  • speed-sensitive damping (SSS) provides exceptional balance between handling and bump absorption
  • front fork adjustments include: 20-way compression damping and 20-way rebound damping
  • inner tubes feature a special friction reducing coating for reduced stiction
  • 22 mm front axle
  • front axle bracket and shaft collar optimized for improved sense of traction
  • optional fork springs are available through Genuine Yamaha parts
• Fork features a twin-chamber, “Speed Sensitive System” (SSS) design
  • damper unit is in a separate structure (completely separate air and oil chambers)
  • helps prevent aerated fork oil from entering the inner damper assembly and degrading its damping abilities
  • since the inner damper is pressurized; it also eliminates bubbles forming in the oil
• Fork features a Transfer Control Valve (TCV).
  • TCV enhances damping from mid to full stroke and improves bottoming characteristics
  • TCV offers more precise control throughout the full suspension stroke
  • TCV is located on the upside of the spring and its function is controlled by piston speed, not piston position, hence the term “Speed Sensitive System fork”
• Large wrap-around plastic fork protectors.
  • excellent lower fork tube protection
  • “self-supporting” design reduces friction for smoother fork operation
• 4-position adjustable, tapered aluminum holders offer a total of 4 different handlebar positions with an adjustment range of 30 mm.
  • suits wide variety of rider sizes
  • mounts are rubber-mounted for reduced vibration and improved rider comfort
  • handlebar weight reduced by 111.5 g
• Fully adjustable KYB link rear suspension with 315 mm (12.4 in) of wheel travel.
  • damping characteristics matched to chassis
  • optimized internal shock valving
  • lightweight spring
  • separate adjusters for high- and low-speed compression damping
  • shock is in line with the center axis of the frame for excellent control
  • shock adjustments include: threaded spring preload, low-speed compression damping, high speed compression damping and rebound damping
• 270 mm floating front wave-style disc and compact Nissin twin-piston caliper.
  • wave disc design reduces weight and improves cooling (wave design offer more surface area for better cooling)
  • “shorty-style” adjustable front brake lever can be adjusted to fit various hand sizes
  • high-friction brake pads with aggressive pad material
  • excellent braking performance
• 245 mm rear disc brake uses a wave-style disc and single piston Nissin caliper and master cylinder.
  • wave disc (same as on the YZ450F) design reduces weight and improves cooling (wave design offer more surface area for better cooling)
  • rear caliper and lower portion of the wave style disc are protected by heavy duty plastic protectors
• Lightweight, plastic resin 6.2-litre fuel tank is located under the seat.
  • low centre of gravity and centralized mass for exceptional handling performance
  • tank can be flipped on its back without disconnecting fuel line (for servicing under the tank)
  • compact in-tank electric fuel pump
• Compact bodywork.
  • lightweight look and feel
  • narrow design makes knee grip more comfortable and improves feeling of control
  • minimal design aids in keeping the body looking good (less plastic to scratch or damage)
  • graphics are impregnated directly into the plastic rad shrouds and will not peel off or get damaged by pressure washing
• Flat seat design.
  • flatter seat enhances rider movement
  • narrower seat improves knee grip feeling
  • features a “cap cover” to access the fuel cap
• Rugged Excel rims.
  • excellent durability and strength
  • reduced unsprung weight equals optimal suspension performance and handling
  • computer-aided refinement of cross-sectional profile shaves weight without sacrificing durability
  • front rim size is 1.60 x 21″; rear is 1.85 x 19″
  • rear hub features second bearing on sprocket side for increased rigidity and durability
  • Bridgestone Battlecross tires

DETAILS

• Convenient oil level sight glass
• Lightweight, extra wide foot pegs
• Folding shift lever tip
• Lightweight chain guide / support helps reduce chance of chain derailment and helps protect rear sprocket
• Lightweight battery bracket
• Heavy duty rubber swingarm protector (chain)
• Gold, heavy-duty DID 520 chain
• Clutch cable features integrated silicone grease and Teflon liner for smooth cable operation
• Easy-access Yamaha Diagnostic Tool connector