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2021 Yamaha YZ85
2021 Yamaha YZ85

Specs

General Information

Manufacturer
Yamaha
Yamaha
Model Year
2021
2021
Model
YZ85
YZ85
Model Code
YZ85M
YZ85M
Color
Team Yamaha Blue
Team Yamaha Blue

Brakes/Wheels/Tires

Brakes

Front - Hydraulic disc, 220 mm

Rear - Hydraulic disc, 190 mm

Front - Hydraulic disc, 220 mm

Rear - Hydraulic disc, 190 mm

Tires

Front - 70 / 100-17 Dunlop® MX3S®

Rear - 90 / 100-14 Dunlop® MX3S®

Front - 70 / 100-17 Dunlop® MX3S®

Rear - 90 / 100-14 Dunlop® MX3S®

Dimensions

Length
71.7 in.
71.7 in.
Height
45.1 in.
45.1 in.
Width
29.9 in.
29.9 in.
Weight
Wet - 161 lb.
Wet - 161 lb.
Ground Clearance
Maximum - 13 in.
Maximum - 13 in.
Wheelbase
49.4 in.
49.4 in.
Seat Height
33.1 in.
33.1 in.

Drivetrain

Transmission
6-speed
6-speed
Final Drive
Chain
Chain

Engine

Engine
2-stroke, Reed-valve inducted
2-stroke, Reed-valve inducted
Cooling
Liquid
Liquid
Displacement
85 cc
85 cc
Bore x Stroke
47.5 x 47.8 mm
47.5 x 47.8 mm
Compression Ratio
8.2 ~ 9.6:1
8.2 ~ 9.6:1
Clutch
Multiplate wet
Multiplate wet
Carburetion
Keihin® PWK28
Keihin® PWK28
Fuel Capacity
1.3 gal.
1.3 gal.

Operational

Front Suspension

Inverted fork; fully adjustable

Travel - 10.8 in.

Inverted fork; fully adjustable

Travel - 10.8 in.

Rear Suspension

Single shock; fully adjustable

Travel - 11.1 in.

Single shock; fully adjustable

Travel - 11.1 in.

Rake
Caster angle - 26.33°
Caster angle - 26.33°
Trail
3.5 in.
3.5 in.

Other

Warranty
30 Day (Limited Factory)
30 Day (Limited Factory)

Features

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 Kayaba® link-type shock with 11.1 inches of travel and race-tested compression valving. The progressive linkage-type design improves bottoming resistance, allowing racers to charge harder and improve lap times.
  • REFINED SWINGARM DESIGN: The YZ85’s modern swingarm features a composite chain guide as well as push-style chain adjusters, just like the YZ125, for easier maintenance.
  • LIGHTWEIGHT SUBFRAME: Compact rear subframe is removable for simplified servicing.
  • 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.
  • 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® knobbies provide exceptional traction on a variety of tracks and terrain.

Engine

  • POTENT YPVS TWO-STROKE ENGINE: The 85cc liquid-cooled, two-stroke engine features the Yamaha Power Valve System for broad, tractable power across the rev range without losing peak power at high rpm—improving driveability and reducing the need for frequent shifting.
  • TUNED CRANKCASE AND INTAKE: The crankcase design features a spacer-style reed valve intake for improved gas flow, which inhales through a 28mm Keihin® flat-slide carburetor for seamless throttle response.
  • TUNED EXPANSION CHAMBER: Carefully matched to suit the YPVS 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 gear engagement and smoother shifts.
  • HIGH CAPACITY RADIATOR: Lightweight radiator has large cores and louvers, and the water pump features a cast aluminum (vs. resin) impeller for maximum cooling efficiency.

Other 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. The flat fuel tank, side panels and rear fender provide generous freedom of movement.

Top Features

  • YPVS™ TWO-STROKE POWER: The 85cc liquid-cooled, two-stroke engine features the Yamaha Power Valve System for broad, tractable power across the rev range without losing peak power at high rpm.
  • FULLY-ADJUSTABLE SUSPENSION: Lightweight 36mm KYB® inverted cartridge fork features low-friction outer tubes, plenty of travel and external compression and rebound damping adjustability, mated to a race-proven fully-adjustable rear shock.
  • HIGH-SPEC WHEELS AND BRAKES: Lightweight 17-inch front and 14-inch rear rims are durable and reduce unsprung weight for optimal suspension performance while the big 220mm and 190mm disc brakes offer precise control and feature Dunlop® MX3S® knobbies for exceptional traction.
  • ADJUSTABLE RIDER ERGONOMICS: The four-position adjustable handlebar mounts and taper-style handlebar allow the rider to tune the ergonomics to suit their size and preferences.

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 Kayaba® link-type shock with 11.1 inches of travel and race-tested compression valving. The progressive linkage-type design improves bottoming resistance, allowing racers to charge harder and improve lap times.
  • REFINED SWINGARM DESIGN: The YZ85’s modern swingarm features a composite chain guide as well as push-style chain adjusters, just like the YZ125, for easier maintenance.
  • LIGHTWEIGHT SUBFRAME: Compact rear subframe is removable for simplified servicing.
  • 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.
  • 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® knobbies provide exceptional traction on a variety of tracks and terrain.

Engine

  • POTENT YPVS TWO-STROKE ENGINE: The 85cc liquid-cooled, two-stroke engine features the Yamaha Power Valve System for broad, tractable power across the rev range without losing peak power at high rpm—improving driveability and reducing the need for frequent shifting.
  • TUNED CRANKCASE AND INTAKE: The crankcase design features a spacer-style reed valve intake for improved gas flow, which inhales through a 28mm Keihin® flat-slide carburetor for seamless throttle response.
  • TUNED EXPANSION CHAMBER: Carefully matched to suit the YPVS 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 gear engagement and smoother shifts.
  • HIGH CAPACITY RADIATOR: Lightweight radiator has large cores and louvers, and the water pump features a cast aluminum (vs. resin) impeller for maximum cooling efficiency.

Other 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. The flat fuel tank, side panels and rear fender provide generous freedom of movement.

Top Features

  • YPVS™ TWO-STROKE POWER: The 85cc liquid-cooled, two-stroke engine features the Yamaha Power Valve System for broad, tractable power across the rev range without losing peak power at high rpm.
  • FULLY-ADJUSTABLE SUSPENSION: Lightweight 36mm KYB® inverted cartridge fork features low-friction outer tubes, plenty of travel and external compression and rebound damping adjustability, mated to a race-proven fully-adjustable rear shock.
  • HIGH-SPEC WHEELS AND BRAKES: Lightweight 17-inch front and 14-inch rear rims are durable and reduce unsprung weight for optimal suspension performance while the big 220mm and 190mm disc brakes offer precise control and feature Dunlop® MX3S® knobbies for exceptional traction.
  • ADJUSTABLE RIDER ERGONOMICS: The four-position adjustable handlebar mounts and taper-style handlebar allow the rider to tune the ergonomics to suit their size and preferences.