For the 1982 model year, the Yamaha RD 80 LC motorcycle has a listed dry weight of 172 lb (78 kg).
Yamaha RD 80 LC 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 RD 80 LC?
dry weight
Using a model-level dry weight comparison, the Yamaha RD 80 LC is lighter than about 87.5% of 12 Yamaha sport 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 RD 80 LC weight & related specs
| Model years covered | 1982 |
|---|---|
| Dry weight | 172 lb (78 kg) |
| Engine displacement | 79 cc |
| Torque | 6.9 lb-ft (9.4 Nm) |
| Fuel capacity | 2.64 US gal (10 L) |
| Full-tank fuel weight (estimated) | 16.4 lb (7.5 kg) |
Useful weight calculations
| Torque per 100 lb | 4.03 lb-ft / 100 lb |
|---|---|
| Displacement per pound | 0.46 cc / lb |
| Weight per 100 cc | 217.7 lb / 100 cc |
| Fuel weight as % of bike weight | 9.6% |
| Weight with full tank | 188.4 lb (85.5 kg) |
What the weight numbers tell you
Yamaha RD 80 LC weight FAQ
How much does the Yamaha RD 80 LC 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 RD 80 LC weight compare with similar Yamahas?
Relatively light. On a model-level comparison, it is lighter than about 87.5% of 12 Yamaha sport bikes with the same weight basis.
What does a full tank of gas weigh on the Yamaha RD 80 LC?
A full tank works out to about 16.4 lb (7.5 kg) from the listed 2.64 US gal (10 L) capacity. Actual fuel density varies slightly, so treat it as a practical estimate.
What does the Yamaha RD 80 LC 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.
How much heavier will the Yamaha RD 80 LC be than its dry weight?
Do not treat dry weight as curb weight. Adding the listed fuel capacity alone produces roughly 188.4 lb (85.5 kg); the true ready-to-ride figure can still differ because dry-weight definitions vary.
What does the Yamaha RD 80 LC weigh with a full tank?
The page calculates about 188.4 lb (85.5 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 RD 80 LC torque-to-weight ratio?
Available data gives 4.03 lb-ft per 100 lb. That ratio helps explain how strong the engine is relative to the bike’s mass, especially at lower speeds.
How large is the Yamaha RD 80 LC engine for its weight?
The model has about 0.46 cc per lb in the available data. This simply shows how much engine displacement there is for each pound of motorcycle weight.
Is the Yamaha RD 80 LC above or below the typical Yamaha sport bike weight?
The representative dry weight is about 155.4 lb (70.5 kg) lighter than the median Yamaha sport bike weight of 327.4 lb (148.5 kg) in this dataset.
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.