What is the engine displacement of the 2026 Rieju MR 300i Racing?

The 2026 Rieju MR 300i Racing has an engine displacement of 298 cc.

2026 Rieju MR 300i Racing Price, Specs, Review

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Review

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The 2026 Rieju MR 300i Racing represents the most significant technological leap in the Spanish manufacturer's history. The headline update for the 2026 model year is the transition to a proprietary TFI (Throttle Body Fuel Injection) system, moving away from traditional carburetors. Developed in-house in Spain, this system utilizes dual Bosch injectors to provide crisp, immediate throttle response and improved fuel efficiency across the entire RPM range. To further refine the riding experience, Rieju has integrated a counter-rotating balance shaft into the 298cc engine, drastically reducing the vibrations typical of large-displacement 2-stroke engines. The bike is built around a high-strength chrome-moly steel central spine frame, paired with an aluminum subframe for optimal weight distribution and agility. Suspension duties are handled by the industry-standard 48mm KYB AOS closed-cartridge forks and a fully adjustable KYB rear shock with progressive linkage. A new diaphragm-style clutch, operated by a Magura hydraulic system, offers a lighter pull and better modulation in technical terrain. Riders can toggle between three engine maps—Race, Forest, and Wet—to tailor power delivery to the environment. Equipped with premium components like Excel rims, Nissin braking systems, and an OXA exhaust, the MR 300i Racing remains a top-tier contender for hard enduro enthusiasts and professional racers alike.

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Pros (Advantages)

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✅ Why buy this bike?

• Potent 298cc fuel-injected engine offers strong, controllable power delivery for demanding trails. • Premium KYB suspension components provide excellent damping and adjustability for diverse terrain. • Lightweight chassis and agile handling make it highly maneuverable in tight, technical sections. • High-quality components throughout contribute to durability and reliable performance in racing conditions. • Ergonomics are likely refined for aggressive riding, offering comfort and control during long races. • Modern fuel injection ensures crisp throttle response and easier starting in varying altitudes.

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Cons (Disadvantages)

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⚠️ Things to consider

• Racing-focused design means less comfort and practicality for casual trail riding or longer adventures. • Higher purchase price compared to more entry-level or recreational enduro motorcycles. • Maintenance schedule will be more frequent and specialized due to its high-performance nature. • Limited dealer network for Rieju in some regions might complicate parts and service availability. • Aggressive power delivery might be intimidating for less experienced riders, requiring careful throttle control.

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License Class (EU)

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Rule of thumb: under 125cc / 15HP → A1, under 47HP → A2, above → A.

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Fuel Economy & Running Costs

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Estimated average for 298cc class: 45-60 mpg (4.0-5.5 L/100km)

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Insurance Class

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Insurance grouping for Rieju MR 300i Racing (298cc):