For the 2018 model year, the Yamaha XT660Z motorcycle has a listed wet/running weight of 459.7 lb (208.5 kg).
Yamaha XT660Z weight overview
This is firmly on the heavier side. The real penalty is not necessarily normal riding; it is low-speed work, awkward parking and moving the bike around manually.
Heavy Motorcycle
How heavy is the Yamaha XT660Z?
wet weight
Using a model-level wet weight comparison, the Yamaha XT660Z is heavier than about 91.2% of 68 Yamaha enduro/off-road motorcycles 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 XT660Z weight & related specs
| Model years covered | 2018 |
|---|---|
| Wet / running weight | 459.7 lb (208.5 kg) |
| Engine displacement | 660 cc |
| Power | 46.9 hp |
| Torque | 42.8 lb-ft (58 Nm) |
| Fuel capacity | 6.08 US gal (23 L) |
| Full-tank fuel weight (estimated) | 37.8 lb (17.1 kg) |
Useful weight calculations
| Horsepower per 100 lb | 10.2 hp / 100 lb |
|---|---|
| Pounds per horsepower | 9.8 lb / hp |
| Torque per 100 lb | 9.31 lb-ft / 100 lb |
| Displacement per pound | 1.44 cc / lb |
| Weight per 100 cc | 69.6 lb / 100 cc |
| Fuel weight as % of bike weight | 8.2% |
What the weight numbers tell you
Yamaha XT660Z weight FAQ
How heavy is the Yamaha XT660Z ready to ride?
Listed ready-to-ride weight is 459.7 lb (208.5 kg).
Is the Yamaha XT660Z heavy compared with other Yamaha enduro/off-road motorcycles?
Relatively speaking, it is on the heavier side. The model sits near the 91st weight percentile in its Yamaha category, so it is heavier than most of the compatible comparison set.
How much does the Yamaha XT660Z fuel weigh?
The listed tank capacity is 6.08 US gal (23 L). Using approximately 0.745 kg/L gasoline, a full tank is roughly 37.8 lb (17.1 kg). That is an estimate for fuel mass, not an official Yamaha curb-weight calculation.
How heavy is the Yamaha XT660Z with an average-size rider?
A 180 lb rider brings the simple bike-plus-rider total to roughly 639.7 lb (290.1 kg) using the representative wet/running figure. Gear and luggage would add more.
How much horsepower does the Yamaha XT660Z have per 100 lb?
Where compatible power and weight figures are available, it works out to 10.2 hp per 100 lb. That places it around the 60th percentile within the compatible Yamaha enduro / offroad power-to-weight comparison.
How much torque does the Yamaha XT660Z have per 100 lb?
The calculated torque-to-weight range is 9.31 lb-ft per 100 lb. It is useful for comparing bikes with very different overall weights.
What is the Yamaha XT660Z displacement per pound?
Engine displacement relative to bike weight is 1.44 cc per lb. It can help compare motorcycles from very different displacement classes without relying on cc alone.
What is the Yamaha XT660Z weight difference versus the category median?
The model sits about 186.3 lb (84.5 kg) heavier than the compatible median Yamaha enduro/off-road motorcycle weight used on this page.
Will the Yamaha XT660Z feel heavy at low speed?
It is heavy enough that smart parking matters. Avoid situations where you have to paddle it backward uphill or catch it after it leans too far.
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.