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Sportbikes

2005Rieju RS1 Castrol

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The 2005 Rieju RS1 Castrol is a compact 50cc sport bike designed for young riders and learners seeking affordable performance. Powered by a liquid-cooled single-cylinder engine with 9 horsepower, it delivers sporty handling in a nimble package ideal for urban commuting and training purposes.

Capacity
50.0 ccm
Engine
Single
Gearbox
6-speed
Dry weight
Not on record
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Seat height
Not on record
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Power
9.0 HP (6.6 kW)
⇄ Compare with another bike + Add to garage All model years

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 20Agility 80Comfort 30Off-road 15Touring 15Road manners 55
Off-road & trail15%
Cornering60%
City riding65%
Daily riding40%
Touring15%
Two-up10%
Track40%
Best for
It's designed as an entry-level sport mini-moto for short urban hops, learning to ride, and playful cornering practice rather than any serious performance riding.
Built for
The bike has a sporty, race-replica look with a peppy little two-stroke engine that rewards revving and quick gear changes despite its modest output.
Not ideal for
It is not for taller, heavier adults, highway commuting, touring, or anyone expecting real straight-line speed or long-distance comfort.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Full specifications

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
Lubrication system
Automix
Torque
Not on record - add it
Transmission
Gearbox
6-speed
Transmission type
Manual
Dimensions & weight
Overall length
1855 mm
Overall width
630 mm
Fuel capacity
9.00 litres
Seat height
Not on record - add it
Dry weight
Not on record - add it
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
Other
Color options
Red/white

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

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Common questions

What is the engine size of the Rieju RS1 Castrol?

The 2005 Rieju RS1 Castrol has a Capacity of 50.0 ccm (3.05 cubic inches).

What engine power does the Rieju RS1 Castrol have?

The 2005 Rieju RS1 Castrol has a Power of 9.0 HP (6.6 kW).

How many gears does the Rieju RS1 Castrol have?

The 2005 Rieju RS1 Castrol has a Gearbox of 6-speed.

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