14 August. Friday 2026
Yamaha YZ85 LW - 2010 Specifications and Reviews
The 2010 Yamaha YZ85 LW is a lightweight two-stroke motocross bike designed for young and amateur riders transitioning to competitive racing. Known for its manageable power delivery and agile handling, this 85cc machine excels in youth motocross competitions and provides an ideal platform for developing riding skills before stepping up to larger displacement bikes.
General information | |
| Category | Cross / motocross |
| Year | 2010 |
| Model | Yamaha YZ85 LW |
| | |
Engine and Transmission Specifications | |
| Transmission type,final drive | Chain |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Lubrication system | Premix |
| Fuel system | Carburettor. Keihin PWK 28 |
| Bore x stroke | 47.5 x 47.8 mm (1.9 x 1.9 inches) |
| Compression | 8.2:1 |
| Engine type | Single cylinder, two-stroke |
| Capacity: | 84.70 ccm (5.17 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Rear brakes diameter | 190 mm (7.5 inches) |
| Rear brakes | Single disc |
| Front brakes diameter | 220 mm (8.7 inches) |
| Front brakes | Single disc |
| Rear tyre dimensions | 90/100-M14 |
| Front tyre dimensions | 70/100-M17 |
| Rear suspension travel | 282 mm (11.1 inches) |
| Rear suspension | wingarm (link suspension) |
| Front suspension travel | 274 mm (10.8 inches) |
| Front suspension | Inverted fork |
| Frame type | Semi-double cradle |
Physical measures and capacities | |
| Fuel capacity | 4.92 litres (1.30 gallons) |
| Wheelbase | 1,257 mm (49.5 inches) |
| Ground clearance | 351 mm (13.8 inches) |
| Overall width | 785 mm (30.9 inches) |
| Overall length | 1,821 mm (71.7 inches) |
| Overall height | 1,161 mm (45.7 inches) |
| Seat height | 864 mm (34.0 inches) If adjustable, lowest setting. |
| Weight incl. oil, gas, etc | 71.0 kg (156.5 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Color options | Blue |
Performance Profile & Rider Fit
Best For
Track80%
City5%
Cornering75%
Daily Riding5%
Touring5%
Passenger0%
Rider Profile
| Best For | This is a competition-focused youth motocross bike best suited to developing riders already comfortable with clutch control and standing on pegs, not beginners on their first bike. |
| Purpose | Built purely for motocross track and off-road racing, with a small two-stroke engine and race-tuned suspension rather than any road-going intent. |
| Rider Fit | The very low 71 kg weight and compact dimensions make it ideal for lighter, smaller-statured junior riders rather than full-sized adults. |
| Character | It's a peppy, high-revving two-stroke that rewards aggressive throttle and clutch use with sharp, flickable handling on rough terrain. |
| Not Ideal For | This bike is not suitable for road use, touring, commuting, or carrying a passenger, and it lacks the size and power for taller or heavier adult riders. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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