Rieju renews its MR 300i off-road range with three clearly differentiated 300cc two-stroke versions: Racing, Pro and Hard Enduro, all sharing the same 300cc two-stroke engine with TFI electronic fuel injection, designed and built in Spain.

For 2027, the whole range gains a new LED headlight and a new front mask, giving the MR a fresh look and improving visibility in difficult lighting conditions, along with version-specific graphics and improvements “aimed at sustaining performance in the most demanding moments,” says Rieju.

The MR 300i Racing features Excel wheels with cast hubs and Mitas Terra Force tires, a Power Racing by OXA exhaust system, Neken handlebar and grips, and a Nissin braking system with Galfer discs.

The MR 300i Pro features a KYB fork with black-anodized DLC anti-friction treatment, red Xtrig triple clamps, a Renthal Fatbar handlebar, a Power Racing by OXA exhaust, Excel wheels with red machined hubs and Michelin Enduro tires, and Nissin brakes with a floating Galfer front disc.

The MR 300i Hard Enduro is the most fully equipped version in the range, conceived specifically for hard enduro. It starts with the same TFI engine and adds its own modifications, featuring an inertia bushing, a heavy-duty water-pump cover with a higher-flow impeller and a model-specific spark plug. The bike is aimed at increasing inertia and low-rev drive in the slowest, most technical sections.



It also features a reinforced cooling system, with a dedicated expansion tank and a twin electric fan module, which keeps the engine in its optimum window even while riding at slower speeds. Completing the package are a Hard Enduro OXA exhaust, a short final drive ratio with an AXP chain guide, Excel wheels with black machined hubs and Michelin Enduro tires, and Nissin brakes with Galfer Wave discs, the rear one specific to the Hard Enduro.
The Hard Enduro model is also fitted with an array of protection parts.
Available through the official Rieju dealer network.CN

2027 Rieju MR 300i Racing Specifications
| Engine | 2-stroke single-cylinder w/ TFI |
| Injection | 2 specific Bosch injectors for high and low rpm |
| Displacement | 298cc |
| Bore x Stroke | 72 x 72.52mm |
| Starting | Electric |
| Cooling | Liquid-cooling w/ fan and expansion tank |
| Power Maps | Race, Forest and Wet |
| Gearbox | 6-speed |
| Clutch | Multi-disc diaphragm clutch in oil bath |
| Intake | Moto Tassinari VForce4 reed valve system |
| Exhaust | Rieju Power Racing by OXA |
| Frame | Central spine frame in chrome-molybdenum steel |
| Subframe | Detachable aluminum |
| Swingarm | Aluminum w/ progressive linkage system |
| Front Fork | Inverted KYB 48mm, closed-cartridge w/ AOS system, compression and rebound adjustable |
| Shock | KYB w/ preload, rebound and high/low-speed compression adjustment, linked to progressive linkage system |
| Front-Wheel Travel | 11.8 in. |
| Rear-Wheel Travel | 12.2 in. |
| Seat | Nonslip |
| Handlebar | Neken double diameter 28mm, Neken grips |
| Front Rim | Excel spoked 1.6 x 21 |
| Front Tire | 90/90-21 Mitas Terra Force-EF Super Light tire |
| Rear Rim | Excel spoked rim 2.15 x 18 |
| Rear Tire | 140/80-18 Mitas Terra Force-EF Super Light tire |
| Front Brake | Nissin caliper and master cylinder w/ 260mm Galfer wave disc |
| Rear Brake | Nissin caliper and master cylinder w/ 220mm Galfer wave disc |
| Wheelbase | 58.07 in. |
| Seat Height | 37.36 in. |
| Ground Clearance | 12.6 in. |
| Fuel Capacity | 2.59 gal. |
| Dry Weight (claimed) | 226.19 lbs. |

2027 Rieju MR 300i Pro Specifications
| Engine | 2-stroke single-cylinder w/ TFI |
| Injection | 2 specific Bosch injectors for high and low rpm |
| Displacement | 298cc |
| Bore x Stroke | 72 x 72.52mm |
| Starting | Electric |
| Cooling | Liquid-cooling w/ fan and expansion tank |
| Power Maps | Race, Forest and Wet |
| Gearbox | 6-speed |
| Clutch | Multi-disc diaphragm clutch in oil bath |
| Intake | Moto Tassinari VForce4 reed valve system |
| Exhaust | Rieju Power Racing by OXA |
| Frame | Central spine frame in chrome-molybdenum steel |
| Subframe | Detachable aluminum |
| Swingarm | Aluminum w/ progressive linkage system |
| Front Fork | 48mm KYB inverted fork, closed-cartridge w/ AOS system, compression and rebound adjustable, w/ black DLC anti-friction treatment |
| Shock | KYB w/ preload, rebound and high/low-speed compression adjustment, linked to progressive linkage system |
| Front-Wheel Travel | 11.8 in. |
| Rear-Wheel Travel | 12.2 in. |
| Seat | Nonslip seat with additional grip strips |
| Handlebar | Renthal Fatbar 802 double diameter 28mm, Renthal grips |
| Front Rim | Excel spoked 1.6 x 21 |
| Front Tire | 90/90-21 Michelin Enduro Medium tire |
| Rear Rim | Excel spoked rim 2.15 x 18 |
| Rear Tire | 140/80-18 Michelin Enduro Medium tire |
| Front Brake | Nissin caliper and master cylinder w/ 260mm Galfer floating wave disc |
| Rear Brake | Nissin caliper and master cylinder w/ 220mm Galfer wave disc |
| Wheelbase | 58.07 in. |
| Seat Height | 37.36 in. |
| Ground Clearance | 12.6 in. |
| Fuel Capacity | 2.59 gal. |
| Dry Weight (claimed) | 228.18 |

2027 Rieju MR 300i Hard Enduro Specifications
| Engine | 2-stroke single-cylinder w/ TFI |
| Injection | 2 specific Bosch injectors for high and low rpm |
| Displacement | 298cc |
| Bore x Stroke | 72 x 72.52mm |
| Starting | Electric |
| Cooling | Liquid cooling w/ dual electric fan |
| Power Maps | Race, Forest and Wet |
| Gearbox | 6-speed |
| Clutch | Multi-disc diaphragm clutch in oil bath |
| Intake | Moto Tassinari VForce4 reed valve system |
| Exhaust | Rieju Power Racing by OXA specific for Hard Enduro |
| Frame | Central spine frame in chrome-molybdenum steel |
| Subframe | Detachable aluminum |
| Swingarm | Aluminum w/ progressive linkage system |
| Front Fork | 48mm inverted KYB fork, closed-cartridge w/ AOS system, compression and rebound adjustable, black DLC anti-friction treatment |
| Shock | KYB shock absorber w/ preload, rebound and high/low-speed compression adjustment, linked to progressive linkage system |
| Front-Wheel Travel | 11.8 in. |
| Rear-Wheel Travel | 12.2 in. |
| Seat | Nonslip with lowered foam and additional grip strips |
| Handlebar | Renthal Fatbar 802 double diameter 28mm, Renthal grips |
| Front Rim | Excel spoked 1.6 x 21 |
| Front Tire | 90/90-21 Michelin Enduro Medium tire |
| Rear Rim | Excel spoked rim 2.15 x 18 |
| Rear Tire | 140/80-18 Michelin Enduro Medium tire |
| Front Brake | Nissin caliper and master cylinder w/ 260mm Galfer floating wave disc |
| Rear Brake | Nissin caliper and master cylinder w/ 220mm wave disc, 5mm thick, specific for Hard Enduro |
| Wheelbase | 58.07 in. |
| Seat Height | 36.57 in. |
| Ground Clearance | 12.6 in. |
| Fuel Capacity | 2.59 gal. |
| Dry Weight (claimed) | 230.38 lbs. |
