Motocross Bikes
1998Rieju RR 125 Fun Bike
28 fields on record
The 1998 Rieju RR 125 Fun Bike is an entry-level motocross machine designed for novice riders seeking affordable off-road performance. Powered by a liquid-cooled 125cc two-stroke engine producing 9.5 horsepower, it delivers modest speeds suitable for trails and recreational riding. Its lightweight frame and accessible power delivery make it ideal for younger riders learning fundamental motocross skills.
- Capacity
- 125.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 95.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 9.5 HP (7.0 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built as a lightweight fun and learner cross bike rather than a serious competition or performance machine, with a top speed capped well below highway speeds.
- Built for
- It has a playful, low-stakes personality suited to casual off-road puttering, backyard trails, and learning clutch and gear control rather than outright speed.
- Not ideal for
- This bike is not for experienced riders seeking real motocross performance, long-distance travel, or any road or highway use.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 125.0 ccm
- Power
- 9.5 HP (7.0 kW)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.1000 HP/kg (dry)
- Bore x stroke
- 56.0 x 50.6 mm
- Compression
- 9.0:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- electric
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet Plate
Performance
- Top speed
- 80.0 km/h (49.7 mph)
Dimensions & weight
Chassis & suspension
- Frame
- Tubeular
- Front suspension
- Inverted forks 32mm Showa®
- Rear suspension
- Monoshock Gas
Brakes & wheels
- Front brakes
- Single disc. AJP
- Front brakes diameter
- 220 mm
- Rear brakes
- Single disc. AJP 2 piston
- Rear brakes diameter
- 185 mm
- Front tyre
- 80/69-j56
- Rear tyre
- 110/62-61j
Other
- Color options
- Black
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
Rider Reviews
Common questions
What is the engine size of the Rieju RR 125 Fun Bike?
The 1998 Rieju RR 125 Fun Bike has a Capacity of 125.0 ccm (7.63 cubic inches).
What engine power does the Rieju RR 125 Fun Bike have?
The 1998 Rieju RR 125 Fun Bike has a Power of 9.5 HP (7.0 kW).
How many gears does the Rieju RR 125 Fun Bike have?
The 1998 Rieju RR 125 Fun Bike has a Gearbox of 6-speed.
How much does the Rieju RR 125 Fun Bike weigh?
The 1998 Rieju RR 125 Fun Bike has a Dry weight of 95.0 kg (209.4 pounds).
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