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Yamaha RX 100 Specs

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The Yamaha RX 100 model is a Allround bike manufactured by Yamaha . In this version sold from year 1990 , the dry weight is 99.0 kg (218.3 pounds) and it is equipped with a Single cylinder, two-stroke motor. The engine produces a maximum peak output power of 11.50 HP (8.4 kW) @ 7500 RPM and a maximum torque of 8.60 Nm (0.9 kgf-m or 6.3 ft.lbs) @ 6500 RPM . With this drive-train, the Yamaha RX 100 is capable of reaching a maximum top speed of 125.0 km/h (77.7 mph) . On the topic of chassis characteristics, responsible for road holding, handling behavior and ride comfort, the Yamaha RX 100 has a Double cradle frame frame with front suspension being Telescopic oil damped and at the rear, it is equipped with Coil spring oil damped . Stock tire sizes are 2/18-4PR on the front, and 3/18-4PR on the rear. As for stopping power, the Yamaha RX 100 braking system includes Expanding brake (drum brake) size  at the front and Expanding brake (drum brake) size  at the back. 

Yamaha RX 100 General Information

Brand Yamaha 
Model Yamaha RX 100 
Start year 1990 
Year 1990 
Category Allround 
Factory Warranty (Years / miles)

Yamaha RX 100 Dimensions, Aerodynamics and weight

Frame type Double cradle frame 
Seat details
Wheelbase 1 mm (0.0 inches) 
Length 2 mm (0.1 inches) 
Width 740 mm (29.1 inches) 
Height 1 mm (0.0 inches) 
Seat Height 750 mm (29.5 inches) If adjustable, lowest setting. 
Alternate Seat Height
Ground Clearance
Trail size
Wheels details
Front Tyres - Rims dimensions 2/18-4PR 
Rear Tyres - Rims dimensions 3/18-4PR 
Front brakes Expanding brake (drum brake) 
Rear brakes Expanding brake (drum brake) 
Front Brakes Dimensions - Disc Dimensions
Rear Brakes Dimensions - Disc Dimensions
Curb Weight (including fluids)
Dry Weight 99.0 kg (218.3 pounds) 
Front Percentage of Weight
Rear Percentage of Weight
Weight-Power Output Ratio : 0.1162 HP/kg 
Fuel Tank Capacity 10.50 litres (2.77 gallons) 
Reserve Fuel Capacity
Carrying Details and Capacity
Front Suspension Telescopic oil damped 
Front Suspension Travel
Rear Suspension Coil spring oil damped 
Rear Suspension Travel

Yamaha RX 100 Engine and Transmission Technical Data

Engine type - Number of cylinders Single cylinder, two-stroke 
Engine details
Fuel system Carburettor. Mikuni RM 18 mm 
Engine size - Displacement - Engine capacity 100.00 ccm (6.10 cubic inches) 
Bore x Stroke 50.0 x 50.0 mm (2.0 x 2.0 inches) 
Compression Ratio 10.1:1 
Number of valves per cylinder
Camshaft Valvetrain Configuration SOHC 
Maximum power - Output - Horsepower 11.50 HP (8.4 kW) @ 7500 RPM 
Maximum torque 8.60 Nm (0.9 kgf-m or 6.3 ft.lbs) @ 6500 RPM 
Engine Maximum RPM 5800 
Cooling system Air 
Lubrication system Autolube 
Engine oil capacity
Exhaust system Single stainless steel pipe 
Gearbox 4-speed 
Transmission type, final drive ratio Chain 
Clutch type 74 tooth clutch housing bell 

Yamaha RX 100 Performance

Top Speed 125.0 km/h (77.7 mph) 
Acceleration 0 to 100 km/h (0 to 62 mph) 19.500 seconds 
Acceleration 0 to 400m (1/4 mile)
Recuperation 60 to 140 km/h in highest gear
Fuel Consumption - MPG - Economy - Efficiency 2.50 litres/100 km (40.0 km/l or 94.09 mpg) 
CO2 emissions 58.0 CO2 g/km. (CO2 - Carbon dioxide emission) 

Yamaha RX 100 Electrical Systems, Ignition and Equipment

Ignition Type CDI 
Electrical Details
Starter Type Kick 
How much horsepower does a Yamaha RX 100 have?
The Yamaha RX 100 has 11.50 HP (8.4 kW) @ 7500 RPM.

How fast is a Yamaha RX 100?
The Yamaha RX 100 top speed is 125.0 km/h (77.7 mph).

How much does a Yamaha RX 100 weighs?
The Yamaha RX 100 weighs 99.0 kg (218.3 pounds).

How tall (seat height) is a Yamaha RX 100?
The Yamaha RX 100 seat height is 750 mm (29.5 inches) If adjustable, lowest setting.

How many gears does a Yamaha RX 100 have?
The Yamaha RX 100 have 4 gears.