Order-in: the 2027s aren’t on the floor yet. Tell us the model and we’ll confirm price and delivery with Rieju’s US importer before you put money down.
The MR 300i Pro is the Racing with the upgrades already done: black DLC treatment on the KYB fork tubes, red X-Trig triple clamps, Renthal Fatbar, Polisport handguards, Michelin tires and red machined hubs only the Pro gets.
Engine
- Engine
- 298cc two-stroke single, liquid-cooled
- Bore × stroke
- 72 × 72.52 mm
- Fuel system
- TFI throttle-body injection, two Bosch injectors (low and high rpm)
- Power maps
- 3 — Race, Forest, Wet
- Exhaust valve
- Electronic
- Starter
- Electric
- Gearbox
- 6-speed
- Clutch
- Diaphragm, multi-disc, oil bath
- Intake
- Reed, V-Force 4
Chassis
- Frame
- Chrome-moly central spine, detachable aluminum subframe
- Swingarm
- Aluminum, progressive linkage
- Fork
- KYB 48 mm inverted, closed cartridge, AOS — compression and rebound adjustable
- Shock
- KYB — preload, rebound, high- and low-speed compression
- Travel
- 11.8″ front / 12.2″ rear
- Brakes
- Nissin calipers, Galfer wave discs — 260 mm front, 220 mm rear
Size
- Seat height
- 37″
- Ground clearance
- 12.5″
- Wheelbase
- 58″
- L × W × H
- 84 × 32 × 48″
- Fuel
- 2.58 gal
- Dry weight
- 230 lb
Equipment
- Exhaust
- Rieju Power Racing by OXA
- Fork finish
- Black DLC anti-friction treatment
- Triple clamps
- Red X-Trig
- Wheels
- Excel rims, red machined hubs (Pro only)
- Tires
- Michelin Enduro
- Bars
- Renthal Fatbar
- Handguards
- Polisport
- Headlight
- New MR-range LED (2027)
Rieju took over the old GasGas enduro platform in 2019 and has been building it out in Figueres, Spain, ever since. The MR 300i is the result: a 298cc two-stroke with Rieju’s own throttle-body fuel injection — no jetting for altitude, which matters when the same day starts in Centerville and ends at 9,000 feet.
Done before it leaves Spain.
DLC cuts stiction on the fork tubes, so small hits get absorbed instead of passed to your hands. X-Trig clamps, Renthal bar and Michelin tires are what most riders swap onto a base bike in the first month.
Same fuel-injected 300.
Two Bosch injectors, three maps (Race, Forest, Wet), an electronic power valve, electric start and a 6-speed. New for 2027: Pro graphics and a new LED headlight.
Trail racer or rock crawler?
Pick the Pro for fast trails and enduro loops. The Hard Enduro trades top-end for low-rpm pull, adds dual fans and armor, and drops the seat half an inch.
Watch it run
What we'd tell you in the shop.
- Rieju’s factory warranty is 6 months — shorter than the big Japanese brands. Repairs go through us.
- Rieju USA’s own spec table for the 2027 Pro repeats the Racing’s bar and tires; we list the Pro equipment from Rieju’s model description and confirm it on delivery.
- It’s an order-in bike: none of the 2027s are on the floor yet. We confirm the price and delivery date before you put money down.
- MSRP from Rieju’s 2027 US retail price list, before destination, setup, tax, title and fees. Rieju prices can change with import tariffs — we confirm yours before you put money down.
Questions we actually get.
Is this a GasGas?
It’s what the GasGas enduro platform became. Rieju took it over in 2019; the MR 300i adds Rieju’s own fuel-injected engine, developed in Spain.
Do you have one I can see?
The 2026 MR 300 Pro is on our floor in Centerville right now — same platform, previous year’s graphics and headlight.
Racing or Pro?
If you’d change the bars, tires and clamps anyway, the Pro is the better buy. If you have your own favorites, save the $1,200.