For the 1979 model year, the Yamaha RX 125 motorcycle has a listed dry weight of 211.6 lb (96 kg).
Yamaha RX 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. 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 125?
dry weight
Using a model-level dry weight comparison, the Yamaha RX 125 is lighter than about 81.8% of 110 Yamaha motorcycles 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 125 weight & related specs
| Model years covered | 1979 |
|---|---|
| Dry weight | 211.6 lb (96 kg) |
| Engine displacement | 125 cc |
| Torque | 9.8 lb-ft (13.3 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 | 4.63 lb-ft / 100 lb |
|---|---|
| Displacement per pound | 0.59 cc / lb |
| Weight per 100 cc | 169.3 lb / 100 cc |
| Fuel weight as % of bike weight | 7.8% |
| Weight with full tank | 228.1 lb (103.5 kg) |
What the weight numbers tell you
Yamaha RX 125 weight FAQ
What is the Yamaha RX 125 dry weight?
The available dry weight is 211.6 lb (96 kg). Actual ready-to-ride weight will be higher after fuel and operating fluids are added.
Is the Yamaha RX 125 lighter or heavier than other Yamaha motorcycles?
It is comparatively light for this Yamaha category. The model lands near the 18th percentile for weight in the compatible dataset.
How much does a full tank add to the Yamaha RX 125?
Based on the supplied 2.64 US gal (10 L) tank capacity, the gasoline itself weighs about 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 RX 125 and rider weight?
Using the model’s representative dry weight and a 180 lb rider, the combined bike-and-rider mass is about 391.6 lb (177.6 kg) before riding gear, luggage or a passenger.
Is the listed Yamaha RX 125 weight ready to ride?
The published usable figure is dry, not curb weight. A simple dry-plus-full-fuel estimate is 228.1 lb (103.5 kg), but that still is not a substitute for an official wet/curb specification.
How much heavier is the Yamaha RX 125 with a full tank?
Based on the available dry-weight and tank-capacity data, a full-tank estimate is 228.1 lb (103.5 kg). Oil, coolant and market-specific equipment can still make actual ready-to-ride weight different.
How much torque does the Yamaha RX 125 have per 100 lb?
Where compatible torque and weight figures are available, the model works out to 4.63 lb-ft per 100 lb. This gives more context than torque alone because it relates engine twist to the mass it has to move.
What is the Yamaha RX 125 displacement per pound?
The available figures work out to 0.59 cc per lb. This is not a performance rating, but it is a useful way to compare engine size against total motorcycle mass.
What is the Yamaha RX 125 weight difference versus the category median?
Compared with the median Yamaha motorcycle weight of 291 lb (132 kg), the model is roughly 79.4 lb (36 kg) lighter.
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.