For the 1990 model year, the Yamaha RX 100 motorcycle has a listed dry weight of 218.3 lb (99 kg).
Yamaha RX 100 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 RX 100?
dry weight
Using a model-level dry weight comparison, the Yamaha RX 100 is lighter than about 93.8% of 8 Yamaha allround models 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 RX 100 weight & related specs
| Model years covered | 1990 |
|---|---|
| Dry weight | 218.3 lb (99 kg) |
| Engine displacement | 100 cc |
| Torque | 6.3 lb-ft (8.6 Nm) |
| Fuel capacity | 2.77 US gal (10.5 L) |
| Full-tank fuel weight (estimated) | 17.2 lb (7.8 kg) |
Useful weight calculations
| Torque per 100 lb | 2.91 lb-ft / 100 lb |
|---|---|
| Displacement per pound | 0.46 cc / lb |
| Weight per 100 cc | 218.3 lb / 100 cc |
| Fuel weight as % of bike weight | 7.9% |
| Weight with full tank | 235.5 lb (106.8 kg) |
What the weight numbers tell you
Yamaha RX 100 weight FAQ
How much does the Yamaha RX 100 weigh?
The source data gives 218.3 lb (99 kg) as dry weight. A fueled, road-ready bike will weigh more than this figure.
How does the Yamaha RX 100 weight compare with similar Yamahas?
Relatively light. On a model-level comparison, it is lighter than about 93.8% of 8 Yamaha allround models with the same weight basis.
What does a full tank of gas weigh on the Yamaha RX 100?
A full tank works out to about 17.2 lb (7.8 kg) from the listed 2.77 US gal (10.5 L) capacity. Actual fuel density varies slightly, so treat it as a practical estimate.
What does the Yamaha RX 100 weigh with a 180 lb rider?
The approximate combined total is 398.3 lb (180.6 kg) with a 180 lb rider, based on the representative dry weight used on this page.
How much heavier will the Yamaha RX 100 be than its dry weight?
Do not treat dry weight as curb weight. Adding the listed fuel capacity alone produces roughly 235.5 lb (106.8 kg); the true ready-to-ride figure can still differ because dry-weight definitions vary.
How much of the Yamaha RX 100 total weight comes from fuel?
Fuel accounts for roughly 7.9% of the available motorcycle weight figure. On lighter bikes that share can be surprisingly noticeable.
How does Yamaha RX 100 torque compare with its weight?
Available data gives 2.91 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 RX 100 engine-size-to-weight ratio?
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.
How far is the Yamaha RX 100 from the median Yamaha allround weight?
The representative dry weight is about 29.8 lb (13.5 kg) lighter than the median Yamaha allround weight of 248 lb (112.5 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.