| MODEL | YAMAHA RX 100 1990 |
| Year | 1990 |
| Engine Type | Single cylinder, two-stroke |
| Displacement / Capacity | 100 cc / 6.10 cu in |
| Bore X Stroke | 50.0 x 50.0 mm / 2.0 x 2.0 in |
| Compression Ratio | 10.1:1 |
| Cooling System | Air |
| Max Power | 8.4 kW / 11.5 hp @ 7500 rpm |
| Max Torque | 8.6 Nm / 6.3 ft-lb @ 6500 rpm |
| Ignition | CDI |
| Induction | Mikuni 18 mm carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Autolube |
| Gear Box | 4-speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Double cradle |
| Front Suspension | Telescopic, oil damped |
| Rear Suspension | Twin shocks, coil spring, oil damped |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | 2040 mm / 80.3 in |
| Overall Width | 740 mm / 29.1 in |
| Overall Height | — |
| Seat Height | 750 mm / 29.5 in |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 99 kg / 218.3 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 2.50-18 |
| Rear Tyre | 3.00-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 10.5 Litres / 2.8 US gal |
| Fuel Consumption | 2.5 L/100 km / 40 km/l |
| Top Speed | 125 km/h / 77.7 mph |
The RX 100 is a light, lively two-stroke 100 cc commuter that became a cult favourite in India. Autolube oil injection, a four-speed gearbox and a double-cradle frame gave it simple, punchy performance in a very light package.
