Motocross Bikes
2021Yamaha YZ85
37 fields on record
The 2021 Yamaha YZ85 is a lightweight 85cc two-stroke motocross bike designed for young and intermediate off-road riders transitioning to larger machines. Known for its aggressive power delivery and responsive handling, it features a liquid-cooled engine with a semi-double-cradle frame providing excellent stability on technical terrain. The YZ85 remains a popular choice for junior motocross competition and recreational trail riding.
- Capacity
- 85.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 66.2 kg
- Seat height
- 841 mm
- Power
- Not on record
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Other years
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2027
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for motocross racing and track practice, not for trail riding, commuting, or general recreation.
- Built for
- A high-strung, rev-happy two-stroke that rewards aggressive clutch and throttle work with sharp, flickable handling on motocross tracks.
- Not ideal for
- Not for adult riders, highway use, long-distance touring, or anyone seeking a comfortable or forgiving first bike.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 85.0 ccm
- Engine type
- Single, two-stroke
- Bore x stroke
- 47.5 x 47.8 mm
- Compression
- 9.6:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Electric
- Ignition
- CDI
- Lubrication system
- Wet sump
- Power
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc
Dimensions & weight
- Wheelbase
- 1255 mm
- Overall length
- 1821 mm
- Overall width
- 759 mm
- Overall height
- 1146 mm
- Seat height
- 841 mm
- Dry weight
- 66.2 kg
- Wet weight
- 73.0 kg
- Fuel capacity
- 4.90 litres
- Ground clearance
- 330 mm
Chassis & suspension
- Frame
- Semi-double-cradle frame
- Front suspension
- Inverted fork
- Rear suspension
- Single shock
- Front wheel travel
- 274 mm
- Rear wheel travel
- 282 mm
- Rake (fork angle)
- 26.3°
- Trail
- 89 mm
Brakes & wheels
- Front brakes
- Single disc. Hydraulic.
- Front brakes diameter
- 220 mm
- Rear brakes
- Single disc. Hydraulic.
- Rear brakes diameter
- 190 mm
- Front tyre
- 70/100-17
- Rear tyre
- 90/100-14
Other
- Color options
- Team Yamaha Blue
Specs last verified against published sources: .
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2002 | 2008 | 2015 | 2021 | 2027 |
|---|---|---|---|---|---|
| Capacity | 85 cc | 85 cc | 85 cc | 85 cc | 85 cc |
| Dry weight | 66 kg | 66 kg | 66 kg | 66 kg | 66 kg |
| Seat height | 864 mm | 864 mm | 841 mm | 841 mm | 841 mm |
| Fuel capacity | 4.9 L | 4.9 L | 4.9 L | 4.9 L | 4.9 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Yamaha YZ85?
The 2021 Yamaha YZ85 has a Capacity of 85.0 ccm (5.19 cubic inches).
How many gears does the Yamaha YZ85 have?
The 2021 Yamaha YZ85 has a Gearbox of 6-speed.
How much does the Yamaha YZ85 weigh?
The 2021 Yamaha YZ85 has a Dry weight of 66.2 kg (145.9 pounds).
Shop this bike
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The 2021 Yamaha YZ85 is a powerful and reliable motocross bike that is perfect for riders of all skill levels. With a lightweight frame and a responsive engine, this bike offers excellent handling and performance on the track. The YZ85 also features a comfortable and adjustable suspension, allowing riders to easily tackle jumps and rough terrain with ease. Whether you're a beginner or a seasoned rider, the 2021 Yamaha YZ85 is a fantastic choice for anyone looking for a high-quality motocross bike.
In conclusion, the 2021 Yamaha YZ85 is a top-of-the-line motocross bike that delivers exceptional performance and reliability. With its lightweight frame, powerful engine, and adjustable suspension, this bike is perfect for riders of all skill levels. Whether you're hitting the track for the first time or battling it out in a competition, the YZ85 is a fantastic choice for any motocross enthusiast.
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