Rieju Mrt 300
The Rieju MRT 300 is a trials/enduro-oriented motorcycle produced by the Spanish manufacturer Rieju, a company with roots dating back to 1934 in Figueres, Catalonia. Rieju developed the MRT line as a competition-focused trials bike, leveraging partnerships and engine sourcing to compete in the off-road segment, with the 300cc variant targeting serious trials and enduro riders. The model gained additional attention after Rieju acquired the rights to produce bikes based on Gas Gas designs following KTM's takeover of Gas Gas, making the MRT series a notable continuation of Spanish trials heritage.
Estimated ~38–42 hp
Power
Estimated ~35–38 Nm
Torque
Estimated ~100–115 kg wet/curb weight
Weight
Estimated ~100–110 km/h (note: not designed for top speed; trials-focused gearing limits highway performance)
Top Speed
Estimated 2.5–4 L/100km (note: highly variable depending on riding style; trials use is low-speed/high-throttle bursts)
Fuel
Naked
Body
What Buyers Should Know
GASGAS Engine Roots
The MRT 300 uses a 2-stroke engine derived from GASGAS trial technology, giving it proven off-road pedigree. This shared DNA means parts availability is generally good across the trials community.
Watch the Cooling System
Early MRT 300 models had occasional issues with coolant hose connections and radiator mounting under hard enduro stress. Inspect these carefully on used bikes, as overheating can cause costly top-end damage.
Strong Niche Resale
Rieju MRTs hold value reasonably well within the hard enduro niche due to limited production numbers and growing brand recognition since acquiring GASGAS's trial division. Low-hour examples are particularly sought after.
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Rieju Mrt 300




