Across the 1970 and 1971 model years, the Yamaha R 5 motorcycle has supplied wet/running weights ranging from 326.3 lb (148 kg) and dry weights ranging from 321.9 lb (146 kg), depending on model year.
Yamaha R 5 weight overview
This is on the lighter side for a road motorcycle. The advantage is usually most obvious while parking, maneuvering at walking speed and moving the bike around off the engine.
Light Motorcycle
How heavy is the Yamaha R 5?
wet weight
Using a model-level wet weight comparison, the Yamaha R 5 is lighter than about 76.1% of 69 Yamaha naked bikes 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 R 5 weight & related specs
| Model years covered | 1970, 1971 |
|---|---|
| Wet / running weight | 326.3 lb (148 kg) |
| Dry weight | 321.9 lb (146 kg) |
| Engine displacement | 347 cc |
| Torque | 28 lb-ft (37.9 Nm) |
| Fuel capacity | 3.17 US gal (12 L) |
| Full-tank fuel weight (estimated) | 19.7 lb (8.9 kg) |
Weight changes by model year
Useful weight calculations
| Torque per 100 lb | 8.57 lb-ft / 100 lb |
|---|---|
| Displacement per pound | 1.06 cc / lb |
| Weight per 100 cc | 94 lb / 100 cc |
| Fuel weight as % of bike weight | 6% |
| Weight with full tank | 341.6 lb (154.9 kg) |
What the weight numbers tell you
Yamaha R 5 weight FAQ
How much does the Yamaha R 5 weigh?
For the model years covered here, wet/running weight is 326.3 lb (148 kg), while dry weight is 321.9 lb (146 kg). Do not treat dry and wet figures as interchangeable.
How does the Yamaha R 5 weight compare with similar Yamahas?
Relatively light. On a model-level comparison, it is lighter than about 76.1% of 69 Yamaha naked bikes with the same weight basis.
Are all Yamaha R 5 model years the same weight?
The supplied comparable weight values do not show a meaningful change across the 1970-1971 years covered here.
What does a full tank of gas weigh on the Yamaha R 5?
A full tank works out to about 19.7 lb (8.9 kg) from the listed 3.17 US gal (12 L) capacity. Actual fuel density varies slightly, so treat it as a practical estimate.
What does the Yamaha R 5 weigh with a 180 lb rider?
The approximate combined total is 506.3 lb (229.6 kg) with a 180 lb rider, based on the representative wet/running weight used on this page.
How much weight do fuel and fluids add to the Yamaha R 5?
Available years with both measurements show about 4.4 lb (2 kg) added between dry and ready-to-ride figures. Fuel explains part of it, while oil, coolant and specification definitions can explain the rest.
How much of the Yamaha R 5 total weight comes from fuel?
Fuel accounts for roughly 6% of the available motorcycle weight figure. On lighter bikes that share can be surprisingly noticeable.
How does Yamaha R 5 torque compare with its weight?
Available data gives 8.57 lb-ft per 100 lb. That ratio helps explain how strong the engine is relative to the bike’s mass, especially at lower speeds.
What is the Yamaha R 5 engine-size-to-weight ratio?
The model has about 1.06 cc per lb in the available data. This simply shows how much engine displacement there is for each pound of motorcycle weight.
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.