| Attribute | Yamaha YZ 85 2004 × | Suzuki RM85 2020 × |
|---|---|---|
| General | ||
| Production from (year) | 2004 | 2020 |
| Make | Yamaha | Suzuki |
| Model | Yamaha YZ 85 | Suzuki RM85 |
| Category | Cross / motocross | Cross / motocross |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Valves per cylinder | 5 | - |
| Fuel system | - | Carburettor. Keihin PE28 |
| Engine details | - | Reed-valve |
| Displacement (cm³) | 84.7 | 84.7 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | - | Chain |
| Bore (mm) | 47.5 | 48 |
| Stroke (mm) | 47.8 | 46.8 |
| Gearbox | - | 6-speed |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) | - |
| Driveline | - | Chain, DID 428DS, 118 links |
| Ignition | - | Digital CDI mapping |
| Clutch | - | Wet multi-plate rack-and-pinion activated clutch |
| Compression | 8.2:1 | 9.5:1 |
| Chassis | ||
| Front suspension | Telescopic fork | Showa 37mm inverted-style fork |
| Rear suspension | Swinging arm (monocross) | Link type, coil spring, oil damped, adjustable spring preload |
| Front brakes | Single disc | Single disc. Twin-piston caliper |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 146 | 200 |
| Frame type | - | Tubular steel frame with aluminum beam swingarm |
| Front tyre | 70/100-17 | 70/100-17 |
| Rear tyre | 90/100-14 | 90/100-14 |
| Front wheel travel (mm) | 275 | 275 |
| Rear wheel travel (mm) | 282 | 277 |
| Other | ||
| Starter | - | Kick |
| Color options |
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| Dimensions | ||
| Wheelbase (mm) | 1,255 | 1,240 |
| Kerb weight (kg) | - | 73 |
| Dry weight (kg) | 66 | - |
| Overall height (mm) | 1,161 | 1,100 |
| Overall length (mm) | 1,818 | 1,805 |
| Overall width (mm) | 758 | 735 |
| Seat height (mm) | 864 | 850 |
| Ground clearance (mm) | 351 | 325 |
| Performance | ||
| Fuel capacity (l) | - | 5 |