2026

Looking for the 2024 Model? CLICK HERE

300cc


HARD OFF ROAD, REAL EMOTION

 

  MR Racing 300i

When the competition calls, you need a bike that not only keeps up with you, but sets the pace. The new MR 300i RACING MY26 is that and more: a true Enduro machine designed to perform at its best in the toughest terrain. Powerful, precise and uncompromising, it inherits RIEJU's offroad heritage with a new 300cc 2-stroke engine with TFI electronic fuel injection, developed for immediate response, low fuel consumption and total torque control.

With its three power map system that adapts to every terrain and riding style. Its chrome-moly central chassis and aluminum subframe ensure strength and agility, while the high-end KYB suspension package ensures impeccable traction and absorption.

Fitted with black anodized Excel wheels, Mitas Terraforce tires, Power Racing by Oxa exhaust, Neken handlebars and grips and lithium battery, this MR is ready to roar from the first second. Compact, agile and brutally efficient, it is the natural choice for those who live Enduro without limits.

MR Racing 300i. For those who are not looking for excuses. Only real thrills.

MODEL HIGHLIGHTS

 

NEW TFI INJECTION ENGINE

MADE IN SPAIN. Thanks to its new and advanced TFI injection system, it is able to perfectly emulate the sensations, response and feel of the 2-stroke carburettor engines, thanks to its innovative system of 2 Bosch Injectors differentiated for High and Low revolutions. All this results in an extraordinary instant and forceful response, combined with the smoothness and efficiency of modern fuel injection engines.

THREE POWER MAPS

3 clearly differentiated Riding Modes as standard, to adapt the power curve to each terrain and riding style, optimizing performance to the maximum: Race Mode (maximum power to feel like a real racer in the chrono), Forest Mode (control and power in equal parts to enjoy any terrain) Wet Mode (smooth and progressive delivery, ideal for low grip conditions).

ELECTRONIC EXHAUST VALVE

A modern electronic exhaust valve automatically manages its opening according to revs and throttle position, for instant and consistent performance at all times and in all conditions.

BALANCE SHAFT

Equipped with a counter-rotating Balance Shaft, it improves engine stability, minimizes vibration and allows the engine to turn smoothly, taking the riding experience to another level.

DIAPHRAGM CLUTCH

More precision, greater control and extraordinary sensitivity. Lighter than traditional models, this clutch provides greater sensitivity and significantly reduces fatigue even in the most demanding conditions.

KYB SUSPENSION

Surgical precision at every impact and outstanding stability on any surface, adaptable to any rider and riding style.
It features a 48 mm KYB Inverted Fork, equipped with AOS (Air-Oil Separated) System and Closed Cartridge with black anodized DLC antifriction treatment, and a KYB Monoshock fully adjustable in Preload, Rebound and Compression (differentiated in High and Low speed), anchored to a progressive linkage system.

  • Engine - New 2-stroke single-cylinder TFI (Throttle-Body Fuel Injection) engine

    Injection - 2 specific and differentiated Bosch injectors for high and low revolutions

    Displacement - 298 cc

    Bore and stroke - 72 x 72.52 mm

    Starter - New integrated electric starter

    Cooling - Liquid cooling + Electric fan

    Power maps - 3 Differentiated Power Maps (Race, Forest and Wet)

    Gearbox - 6-speed gearbox

    Clutch - New oil-immersed multi-plate Diaphragm clutch

    Intake - Reed with VForce 4 box

    Exhaust - Rieju Power Racing by OXA

  • Chassis - Chrome-molybdenum central chassis

    Subframe - Detachable aluminium

    Swingarm - Aluminium with Progressive Linkage System

    Front Fork - 48 mm KYB Inverted Closed Cartridge with AOS (Air Oil Separated) system, with Compression and Extension regulation.

    Shock - KYB shock absorber with preload, rebound and compression adjustment (differentiated in high and low speed), anchored to Progressive Linkage System.

    Suspension travel - Front: 11.8in / Rear: 12.2

    Seat - Anti-slip with additional grip strips

    Handlebars - 28mm Neken double diameter

    Grips - Neken

  • Front wheel - 1.6x21 spoked EXCEL rim and 90/90-21 Michelin Enduro Medium tyre

    Rear wheel - 2.15x18 spoked EXCEL rim and 140/80-18 Michelin Enduro Medium tyre

  • Front brake - Nissin caliper and pump assembly and 260mm Galfer disc

    Rear brake - Nissin caliper and pump assembly and 220mm Galfer disc

  • Dimensions - Length x width x height: 84 x 32 x 46 in

    Wheelbase - 58 in

    Seat height - 37.4 in

    Ground clearance - 12.6 in

    Fuel - 2.6 gal

    Dry weight - 228.2 lbs

MSRP: $10,399*

* MSRP does not include freight, setup, tax, title, documentation fees, or dealer installed options. See your dealer for complete details.