For the 2010 model year, the Yamaha XT 660X motorcycle has a listed wet/running weight of 416.7 lb (189 kg).
Yamaha XT 660X weight overview
This is neither unusually light nor extremely heavy. For most riders the practical weight question is more about seat height, center of mass and low-speed balance than the scale number alone.
Middleweight Motorcycle
How heavy is the Yamaha XT 660X?
wet weight
Using a model-level wet weight comparison, the Yamaha XT 660X is lighter than about 59.5% of 21 Yamaha supermoto bikes with compatible weight data.
Ready-to-ride weight
Bike + rider total weight
These totals use the model’s representative wet weight. They exclude riding gear, luggage and a passenger.
Yamaha XT 660X weight & related specs
| Model years covered | 2010 |
|---|---|
| Wet / running weight | 416.7 lb (189 kg) |
| Engine displacement | 660 cc |
| Torque | 44.3 lb-ft (60 Nm) |
| Fuel capacity | 3.96 US gal (15 L) |
| Full-tank fuel weight (estimated) | 24.6 lb (11.2 kg) |
Useful weight calculations
| Torque per 100 lb | 10.62 lb-ft / 100 lb |
|---|---|
| Displacement per pound | 1.58 cc / lb |
| Weight per 100 cc | 63.1 lb / 100 cc |
| Fuel weight as % of bike weight | 5.9% |
What the weight numbers tell you
Yamaha XT 660X weight FAQ
How heavy is the Yamaha XT 660X ready to ride?
Listed ready-to-ride weight is 416.7 lb (189 kg).
Is the Yamaha XT 660X heavy compared with other Yamaha supermoto bikes?
It sits fairly close to the middle of the category. Its representative wet weight is around the 40th percentile among 21 compatible Yamaha supermoto bikes.
How much does the Yamaha XT 660X fuel weigh?
The listed tank capacity is 3.96 US gal (15 L). Using approximately 0.745 kg/L gasoline, a full tank is roughly 24.6 lb (11.2 kg). That is an estimate for fuel mass, not an official Yamaha curb-weight calculation.
How heavy is the Yamaha XT 660X with an average-size rider?
A 180 lb rider brings the simple bike-plus-rider total to roughly 596.7 lb (270.6 kg) using the representative wet/running figure. Gear and luggage would add more.
What is the Yamaha XT 660X torque per 100 lb of bike weight?
The calculated torque-to-weight range is 10.62 lb-ft per 100 lb. It is useful for comparing bikes with very different overall weights.
How many cc does the Yamaha XT 660X have per pound?
Engine displacement relative to bike weight is 1.58 cc per lb. It can help compare motorcycles from very different displacement classes without relying on cc alone.
How does the Yamaha XT 660X compare with the median Yamaha supermoto bike weight?
The model sits about 55.2 lb (25.1 kg) lighter than the compatible median Yamaha supermoto bike weight used on this page.
Will the Yamaha XT 660X feel heavy at low speed?
It is most likely to feel heavy while stopped, backing up or on a slope rather than once settled at normal riding speed. Seat height and center of gravity matter a lot.
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.