Supermotos

2013Rieju MRT Pro 50 SM

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The 2013 Rieju MRT Pro 50 SM is a lightweight supermotard designed for young riders and beginners seeking urban agility and styling. Powered by a liquid-cooled two-stroke 50cc engine with a six-speed gearbox, it combines nimble handling with sporty aesthetics. Known for its affordable entry point into supermotard riding, it excels in city commuting and casual weekend rides.

Capacity: 50.0 ccm
Engine: Single, two-stroke
Gearbox: 6-speed
Dry weight: 84.5 kg
Seat height: 850 mm
Power: 5.4 HP (4.0 kW)

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What’s new for the 2013 Rieju MRT Pro 50 SM

vs the 2012

Spec	2012	2013
Dry weight	96.5 kg (212.7 pounds)	84.5 kg (186.3 pounds)
Seat height	900 mm (35.4 inches)	850 mm (33.5 inches)
Front suspension	Marzocchi inverted fork of 40mm.	Marzocchi inverted fork of Ø40mm.
Rear suspension	Gas Mono-shock shock absorber and separate bottle PRS system	Gas Mono-shock shock absorber and seaprate bottle PRS system
Front brakes	Single disc. Galfer wave disc of 300mm. with double piston caliper.	Single disc. Galfer wave. radial mounted AJP gold series dual piston caliper.
Rear brakes	Single disc. Wave disc of 200mm.	Single disc. Wave disc
Wheelbase	1332 mm (52.4 inches)	1380 mm (54.3 inches)

Other years 2011 2012 2013

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail15%

Cornering90%

City riding70%

Daily riding40%

Touring10%

Two-up15%

Track65%

Best for: Built as a pint-sized supermoto for sharp, flickable fun on tight tracks and urban streets rather than any serious speed or distance work.
Built for: A playful, high-revving two-stroke supermoto with premium-feeling components like an inverted Marzocchi fork and radial brakes packed into a tiny, toy-like chassis.
Not ideal for: Not suitable for riders wanting highway speed, long-distance comfort, passenger carrying, or genuine off-road capability.

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

Will it fit you?

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Your height

Inseam (optional)

Units

At 850mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with tip-toe one foot on the 2013 Rieju MRT Pro 50 SM, with a relaxed knee angle of around 130 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 821-900 mm — Long Legs →

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Full specifications

Engine

Capacity: 50.0 ccm
Power: 5.4 HP (4.0 kW)
Engine type: Single, two-stroke
Power/weight ratio: 0.0639 HP/kg (dry)
Bore x stroke: 40.3 x 39.0 mm
Cooling system: Liquid
Fuel system: Carburettor
Starting: Kick
Lubrication system: Separate mixture
Torque: Not on record - add it

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: Multidisk

Dimensions & weight

Wheelbase: 1380 mm
Overall length: 2070 mm
Overall width: 800 mm
Overall height: 1145 mm
Seat height: 850 mm
Dry weight: 84.5 kg
Fuel capacity: 6.30 litres
Oil capacity: 1.10 litres

Chassis & suspension

Frame: Double cradle. Highly resistant steel perimeter
Front suspension: Marzocchi inverted fork of Ø40mm.
Rear suspension: Gas Mono-shock shock absorber and seaprate bottle PRS system

Brakes & wheels

Front brakes: Single disc. Galfer wave. radial mounted AJP gold series dual piston caliper.
Front brakes diameter: 300 mm
Rear brakes: Single disc. Wave disc
Rear brakes diameter: 200 mm
Front tyre: 100/80-17
Rear tyre: 130/70-17