What category is the 2003 Rieju RS-1 Evolution Racing?

The 2003 Rieju RS-1 Evolution Racing has a Category of Sport.

What is the engine size of the 2003 Rieju RS-1 Evolution Racing?

The 2003 Rieju RS-1 Evolution Racing has a Capacity: of 50.00 ccm (3.05 cubic inches).

What type of engine does the 2003 Rieju RS-1 Evolution Racing have?

The 2003 Rieju RS-1 Evolution Racing has a Engine type of Single cylinder.

What is the engine power of the 2003 Rieju RS-1 Evolution Racing?

The 2003 Rieju RS-1 Evolution Racing has a Power of 8.00.

How much does the 2003 Rieju RS-1 Evolution Racing weigh?

The 2003 Rieju RS-1 Evolution Racing has a Dry weight of 87.0 kg (191.8 pounds).

What is the seat height of the 2003 Rieju RS-1 Evolution Racing?

The 2003 Rieju RS-1 Evolution Racing has a Seat height of 800 mm (31.5 inches) If adjustable, lowest setting..

Rieju RS-1 Evolution Racing - 2003 Specifications and Reviews

Name: 2003 Rieju RS-1 Evolution Racing
Brand: Rieju

The 2003 Rieju RS-1 Evolution Racing is a lightweight 50cc sport bike designed for entry-level riders and racing enthusiasts. Known for its agile handling and competitive spirit, this single-cylinder machine delivers 8 horsepower with an impressive power-to-weight ratio. Its compact dimensions and manageable seat height make it ideal for younger or smaller riders pursuing track racing ambitions.

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2003

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Rieju RS-1 Evolution Racing 2003 13715 Thumb

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Engine and Transmission Specifications
Power	8.00
Stroke	2
Engine type	Single cylinder
Capacity:	50.00 ccm (3.05 cubic inches)

Physical measures and capacities
Seat height	800 mm (31.5 inches) If adjustable, lowest setting.
Dry weight	87.0 kg (191.8 pounds)
Rieju RS-1 Evolution Racing dimensions and frame
Power/weight ratio	0.0920 HP/kg


Category	Sport
Year	2003
Model	Rieju RS-1 Evolution Racing
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity	8.00 litres (2.11 gallons)

Performance Profile & Rider Fit

8 hp

Peak Power

Best For

Track55%

City70%

Cornering60%

Daily Riding25%

Touring8%

Passenger5%

Rider Profile

Best For	This is a learner-class 50cc sportbike best suited to young or novice riders cutting their teeth on a lightweight machine.
Purpose	Built as a small-displacement sport replica for short blasts, mini-track days, and learning race-style riding habits rather than outright speed.
Rider Fit	Its tiny 87kg dry weight and low seat height make it extremely easy to manage for smaller or lighter riders.
Character	It has the aggressive sportbike styling and riding position of a full-size racer shrunk down into a playful, buzzy 50cc two-stroke package.
Not Ideal For	This is not the bike for highway travel, carrying a passenger, or any rider expecting real-world touring range and power.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2003 Rieju RS-1 Evolution Racing Rider Ergonomics Assessment

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Feet:

At 800mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2003 Rieju RS-1 Evolution Racing, with a cramped knee angle of around 70 degrees and a forward-leaning riding position.

Data quality: estimated (wheelbase estimated from this category's typical bike, not this model's own spec). Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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