Sportbikes
2005Rieju RS1 Evolution
22 fields on record
The 2005 Rieju RS1 Evolution is a lightweight 50cc sport bike designed for learner and entry-level riders seeking an affordable introduction to motorcycle riding. Known for its nimble handling and reliable liquid-cooled engine, it combines practical commuting capability with sporty styling. The electric-start convenience and six-speed transmission make it accessible for younger or inexperienced riders.
- Capacity
- 50.0 ccm
- Engine
- Single
- Gearbox
- 6-speed
- Dry weight
- Not on record
Know it? Add it → - Seat height
- Not on record
Know it? Add it → - Power
- 9.0 HP (6.6 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Designed as a small-displacement sport-styled moped for learners, short urban trips, and playful cornering practice rather than outright performance.
- Built for
- A nimble, lightweight, sport-mimicking two-stroke that rewards revving and flickable handling over raw speed.
- Not ideal for
- It is not suitable for highway travel, long-distance touring, carrying a passenger comfortably, or riders seeking real power and speed.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 50.0 ccm
- Power
- 9.0 HP (6.6 kW)
- Engine type
- Single
- Bore x stroke
- 39.0 x 40.3 mm
- Compression
- 12.0:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Electric
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
Dimensions & weight
Chassis & suspension
- Frame
- Double cradle steel tube.
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 260 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 200 mm
- Front tyre
- 90/90-16
- Rear tyre
- 120/80-16
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 RS1 Evolution?
The 2005 Rieju RS1 Evolution has a Capacity of 50.0 ccm (3.05 cubic inches).
What engine power does the Rieju RS1 Evolution have?
The 2005 Rieju RS1 Evolution has a Power of 9.0 HP (6.6 kW).
How many gears does the Rieju RS1 Evolution have?
The 2005 Rieju RS1 Evolution has a Gearbox of 6-speed.
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