Across the 1973 and 2003 model years, the Yamaha DT 125 motorcycle has supplied wet/running weights ranging from 227.1 lb (103 kg) and dry weights ranging from 255.7 lb (116 kg), depending on model year.
Yamaha DT 125 weight overview
Its low overall mass should be most noticeable off the throttle: moving it by hand, backing out of a parking space and managing stop-start riding should take less effort than on a heavy road bike.
Very Light Motorcycle
How heavy is the Yamaha DT 125?
wet weight
Using a model-level wet weight comparison, the Yamaha DT 125 is lighter than about 74.3% of 68 Yamaha enduro/off-road motorcycles with compatible weight data.
Dry vs 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 DT 125 weight & related specs
| Model years covered | 1973, 2003 |
|---|---|
| Wet / running weight | 227.1 lb (103 kg) |
| Dry weight | 255.7 lb (116 kg) |
| Engine displacement | 123 cc to 124 cc |
| Power | 13 hp |
| Torque | 10.5 lb-ft (14.2 Nm) |
| Fuel capacity | 1.85 US gal (7 L) to 2.64 US gal (10 L) |
| Full-tank fuel weight (estimated) | 11.5 lb (5.2 kg) to 16.4 lb (7.5 kg) |
Weight changes by model year
The 1973 model is used as the baseline where data is available. Only later supplied values that differ are shown below. A year pill does not mean every individual weight field was supplied for that year.
Useful weight calculations
| Horsepower per 100 lb | 5.72 hp / 100 lb |
|---|---|
| Pounds per horsepower | 17.47 lb / hp |
| Torque per 100 lb | 4.1 lb-ft / 100 lb |
| Displacement per pound | 0.48 cc / lb to 0.54 cc / lb |
| Weight per 100 cc | 184.6 lb / 100 cc to 206.2 lb / 100 cc |
| Fuel weight as % of bike weight | 5.1% to 6.4% |
| Weight with full tank | 272.2 lb (123.5 kg) |
What the weight numbers tell you
Yamaha DT 125 weight FAQ
What is the Yamaha DT 125 dry and wet weight?
Across the covered 1973 and 2003 years, listed wet/running weight is 227.1 lb (103 kg) and listed dry weight is 255.7 lb (116 kg). Check the year-change section because the exact figure can vary by model year.
Is the Yamaha DT 125 lighter or heavier than other Yamaha enduro/off-road motorcycles?
It is comparatively light for this Yamaha category. The model lands near the 26th percentile for weight in the compatible dataset.
Which Yamaha DT 125 years have different weight specs?
No clear weight change appears in the usable model-year data. Other specifications may still differ by year.
How much does a full tank add to the Yamaha DT 125?
Based on the supplied 1.85 US gal (7 L) to 2.64 US gal (10 L) tank capacity, the gasoline itself weighs about 11.5 lb (5.2 kg) to 16.4 lb (7.5 kg) when full. This helps explain part of the difference between dry and ready-to-ride mass.
What is the combined Yamaha DT 125 and rider weight?
Using the model’s representative wet/running weight and a 180 lb rider, the combined bike-and-rider mass is about 407.1 lb (184.6 kg) before riding gear, luggage or a passenger.
What is the Yamaha DT 125 power-to-weight ratio?
Available model-year data produces 5.72 hp per 100 lb. It shows engine output relative to motorcycle mass rather than just quoting peak horsepower. That places it around the 25th percentile within the compatible Yamaha enduro / offroad power-to-weight comparison.
What does the Yamaha DT 125 weigh with a full tank?
Using the listed dry weight plus the calculated fuel mass, the estimated weight with a full tank is 272.2 lb (123.5 kg). That still may not equal official curb weight because dry-weight definitions can exclude other fluids or equipment.
What is the Yamaha DT 125 torque per 100 lb of bike weight?
Where compatible torque and weight figures are available, the model works out to 4.1 lb-ft per 100 lb. This gives more context than torque alone because it relates engine twist to the mass it has to move.
How many cc does the Yamaha DT 125 have per pound?
The available figures work out to 0.48 cc per lb to 0.54 cc per lb. This is not a performance rating, but it is a useful way to compare engine size against total motorcycle mass.
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.