Across the 2002 and 2007 model years, the Yamaha TT-R 125 LW motorcycle has a listed dry weight of 172 lb (78 kg).
Yamaha TT-R 125 LW weight overview
This is a genuinely light bike. That usually makes parking, pushing it around a garage and catching small low-speed balance errors easier than on larger motorcycles. The comparison uses dry weight because a usable wet/running figure was not supplied, so the actual ready-to-ride motorcycle will be heavier.
Very Light Motorcycle
How heavy is the Yamaha TT-R 125 LW?
dry weight
Using a model-level dry weight comparison, the Yamaha TT-R 125 LW is lighter than about 68.8% of 8 Yamaha motocross bikes with compatible weight data.
Dry weight
Bike + rider total weight
These totals use the model’s representative dry weight. They exclude riding gear, luggage and a passenger.
Yamaha TT-R 125 LW weight & related specs
| Model years covered | 2002, 2007 |
|---|---|
| Dry weight | 172 lb (78 kg) |
| Engine displacement | 123.7 cc to 124 cc |
| Power | 9.8 hp |
| Torque | 7.3 lb-ft (9.9 Nm) |
| Fuel capacity | 1.74 US gal (6.6 L) |
| Full-tank fuel weight (estimated) | 10.8 lb (4.9 kg) |
Weight changes by model year
Useful weight calculations
| Horsepower per 100 lb | 5.7 hp / 100 lb |
|---|---|
| Pounds per horsepower | 17.55 lb / hp |
| Torque per 100 lb | 4.25 lb-ft / 100 lb |
| Displacement per pound | 0.72 cc / lb |
| Weight per 100 cc | 138.7 lb / 100 cc to 139 lb / 100 cc |
| Fuel weight as % of bike weight | 6.3% |
| Weight with full tank | 182.8 lb (82.9 kg) |
What the weight numbers tell you
Yamaha TT-R 125 LW weight FAQ
How much does the Yamaha TT-R 125 LW weigh?
The source data gives 172 lb (78 kg) as dry weight. A fueled, road-ready bike will weigh more than this figure.
How does the Yamaha TT-R 125 LW weight compare with similar Yamahas?
Relatively light. On a model-level comparison, it is lighter than about 68.8% of 8 Yamaha motocross bikes with the same weight basis.
Are all Yamaha TT-R 125 LW model years the same weight?
The supplied comparable weight values do not show a meaningful change across the 2002 and 2007 years covered here.
What does a full tank of gas weigh on the Yamaha TT-R 125 LW?
A full tank works out to about 10.8 lb (4.9 kg) from the listed 1.74 US gal (6.6 L) capacity. Actual fuel density varies slightly, so treat it as a practical estimate.
What does the Yamaha TT-R 125 LW weigh with a 180 lb rider?
The approximate combined total is 352 lb (159.6 kg) with a 180 lb rider, based on the representative dry weight used on this page.
Is the Yamaha TT-R 125 LW strong for its weight?
The calculated range is 5.7 hp per 100 lb. This ratio is usually more informative for acceleration comparisons than horsepower alone.
How much heavier will the Yamaha TT-R 125 LW be than its dry weight?
Do not treat dry weight as curb weight. Adding the listed fuel capacity alone produces roughly 182.8 lb (82.9 kg); the true ready-to-ride figure can still differ because dry-weight definitions vary.
How much heavier is the Yamaha TT-R 125 LW with a full tank?
Based on the available dry-weight and tank-capacity data, a full-tank estimate is 182.8 lb (82.9 kg). Oil, coolant and market-specific equipment can still make actual ready-to-ride weight different.
How much torque does the Yamaha TT-R 125 LW have per 100 lb?
Available data gives 4.25 lb-ft per 100 lb. That ratio helps explain how strong the engine is relative to the bike’s mass, especially at lower speeds.
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.