Comparison of Yamaha XT 660 R Supermotard and Yamaha XT 660 X Supermotard [S]ave
| Attribute |  Yamaha XT 660 R Supermotard × |  Yamaha XT 660 X Supermotard × |
|---|---|---|
| General | ||
| Production from (year) | 2006 | 2004 |
| Make | Yamaha | Yamaha |
| Model | Yamaha XT 660 R Supermotard | Yamaha XT 660 X Supermotard |
| Category | Super motard | Super motard |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Twin, four-stroke |
| Valves per cylinder | 4 | - |
| Fuel system | Injection | - |
| Displacement (cm³) | 660 | 659 |
| Power (kw) | 34.5 | 34.5 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | - |
| Torque (Nm) | 58.4 | 58.4 |
| Bore (mm) | 100 | 100 |
| Stroke (mm) | 84 | 84 |
| Gearbox | 5-speed | - |
| Fuel control | Single Overhead Cams (SOHC) | Double Overhead Cams/Twin Cam (DOHC) |
| Ignition | TCI | - |
| Clutch | Wet, multiple disc | - |
| Lubrication system | Dry sump | - |
| Compression | 10.0:1 | 10.0:1 |
| Chassis | ||
| Front suspension | Telescopic fork | Telescopic fork, diameter 43mm |
| Rear suspension | Monocross with linkage | Monocross with linkage |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 245 | 245 |
| Front tyre | 120/70-R17 | 120/70-17 |
| Rear tyre | 160/60-R17 | 160/60-17 |
| Front wheel travel (mm) | 200 | 200 |
| Rear wheel travel (mm) | 125 | 191 |
| Other | ||
| Starter | Electric | - |
| Color options | - |
|
| Dimensions | ||
| Wheelbase (mm) | 1,490 | 1,485 |
| Dry weight (kg) | 173 | 173 |
| Power/weight ratio | 0.1994 | 0.1994 |
| Overall height (mm) | 1,210 | 1,349 |
| Overall length (mm) | 2,175 | 2,131 |
| Overall width (mm) | 860 | 860 |
| Seat height (mm) | 875 | 875 |
| Ground clearance (mm) | 205 | 200 |
| Performance | ||
| Fuel capacity (l) | 15 | - |
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