For the 2004 model year, the Yamaha XT 660 X Supermotard motorcycle has a listed dry weight of 381.4 lb (173 kg).
Yamaha XT 660 X Supermotard weight overview
The bike falls into a normal middleweight range. At road speed the mass is usually less obvious; parking, slopes and walking-speed maneuvers are where you notice it most. The comparison uses dry weight because a usable wet/running figure was not supplied, so the actual ready-to-ride motorcycle will be heavier.
Middleweight Motorcycle
Dry weight
Bike + rider total weight
These totals use the model’s representative dry weight. They exclude riding gear, luggage and a passenger.
Yamaha XT 660 X Supermotard weight & related specs
| Model years covered | 2004 |
|---|---|
| Dry weight | 381.4 lb (173 kg) |
| Engine displacement | 659 cc |
| Power | 47.3 hp |
| Torque | 43.1 lb-ft (58.4 Nm) |
Useful weight calculations
| Horsepower per 100 lb | 12.4 hp / 100 lb |
|---|---|
| Pounds per horsepower | 8.06 lb / hp |
| Torque per 100 lb | 11.29 lb-ft / 100 lb |
| Displacement per pound | 1.73 cc / lb |
| Weight per 100 cc | 57.9 lb / 100 cc |
What the weight numbers tell you
Yamaha XT 660 X Supermotard weight FAQ
What is the Yamaha XT 660 X Supermotard dry weight?
The available dry weight is 381.4 lb (173 kg). Actual ready-to-ride weight will be higher after fuel and operating fluids are added.
What is the combined Yamaha XT 660 X Supermotard and rider weight?
Using the model’s representative dry weight and a 180 lb rider, the combined bike-and-rider mass is about 561.4 lb (254.6 kg) before riding gear, luggage or a passenger.
What is the Yamaha XT 660 X Supermotard power-to-weight ratio?
Available model-year data produces 12.4 hp per 100 lb. It shows engine output relative to motorcycle mass rather than just quoting peak horsepower.
Is the listed Yamaha XT 660 X Supermotard weight ready to ride?
No. Dry weight excludes at least some operating fluids, so the actual ready-to-ride motorcycle will weigh more.
How much torque does the Yamaha XT 660 X Supermotard have per 100 lb?
Where compatible torque and weight figures are available, the model works out to 11.29 lb-ft per 100 lb. This gives more context than torque alone because it relates engine twist to the mass it has to move.
What is the Yamaha XT 660 X Supermotard displacement per pound?
The available figures work out to 1.73 cc per lb. This is not a performance rating, but it is a useful way to compare engine size against total motorcycle mass.
Where will I notice the Yamaha XT 660 X Supermotard weight most?
Expect the weight to matter more off the throttle than at speed: garage movement, uneven footing and parking angle are the practical situations to think about.
Motorcycle specifications can vary by model year, market, equipment and the exact dry/curb-weight definition. Calculated fuel-weight and ratio figures on this page are estimates derived from the supplied specifications. Confirm critical figures in the owner’s manual or on the official Yamaha Motorsports website.