For the 1975 model year, the Yamaha GT80 B motorcycle has a supplied wet/running weight of 132.9 lb (60.3 kg) and a dry weight of 130.1 lb (59 kg).
Yamaha GT80 B 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 GT80 B?
wet weight
Using a model-level wet weight comparison, the Yamaha GT80 B is lighter than about 97.8% 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 GT80 B weight & related specs
| Model years covered | 1975 |
|---|---|
| Wet / running weight | 132.9 lb (60.3 kg) |
| Dry weight | 130.1 lb (59 kg) |
| Engine displacement | 72 cc |
| Torque | 4.5 lb-ft (6.1 Nm) |
| Fuel capacity | 1.3 US gal (4.92 L) |
| Full-tank fuel weight (estimated) | 8.1 lb (3.7 kg) |
Useful weight calculations
| Torque per 100 lb | 3.38 lb-ft / 100 lb |
|---|---|
| Displacement per pound | 0.54 cc / lb |
| Weight per 100 cc | 184.6 lb / 100 cc |
| Fuel weight as % of bike weight | 6.1% |
| Weight with full tank | 138.2 lb (62.7 kg) |
What the weight numbers tell you
Yamaha GT80 B weight FAQ
What is the Yamaha GT80 B dry and wet weight?
Across the covered 1975 years, listed wet/running weight is 132.9 lb (60.3 kg) and listed dry weight is 130.1 lb (59 kg). Check the year-change section because the exact figure can vary by model year.
Is the Yamaha GT80 B lighter or heavier than other Yamaha enduro/off-road motorcycles?
It is comparatively light for this Yamaha category. The model lands near the 2nd percentile for weight in the compatible dataset.
How much does a full tank add to the Yamaha GT80 B?
Based on the supplied 1.3 US gal (4.92 L) tank capacity, the gasoline itself weighs about 8.1 lb (3.7 kg) when full. This helps explain part of the difference between dry and ready-to-ride mass.
What is the combined Yamaha GT80 B and rider weight?
Using the model’s representative wet/running weight and a 180 lb rider, the combined bike-and-rider mass is about 312.9 lb (141.9 kg) before riding gear, luggage or a passenger.
How heavy is the Yamaha GT80 B after filling the fuel tank?
The page calculates about 138.2 lb (62.7 kg) with a full tank by adding the listed fuel mass to the dry figure. Treat this as a practical estimate, not an official Yamaha curb-weight number.
What is the Yamaha GT80 B torque-to-weight ratio?
Where compatible torque and weight figures are available, the model works out to 3.38 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 large is the Yamaha GT80 B engine for its weight?
The available figures work out 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.
Is the Yamaha GT80 B above or below the typical Yamaha enduro/off-road motorcycle weight?
Compared with the median Yamaha enduro/off-road motorcycle weight of 273.4 lb (124 kg), the model is roughly 140.4 lb (63.7 kg) lighter.
Where will I notice the Yamaha GT80 B weight most?
The weight itself is unlikely to be the main difficulty. Rider reach, steering lock and where the mass sits may matter more at walking pace.
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.