GasGas EC 300 vs Rieju MR 300 Racing: Fuel Delivery Differences

This page covers the 2025 GasGas EC 300 and the Rieju MR 300 Racing, a bike some riders mistakenly refer to by older names like the Rieju MRT 300. Both are dedicated two-stroke enduro motorcycles, but they take different approaches to fuel delivery and suspension.\n\n## Who Each Bike Suits\n\nThe GasGas EC 300 is built for riders who prefer modern fuel management and open-cartridge front suspension. Its throttle-body fuel injection system removes the need for jetting changes, making it a vibrant and capable option for riders dealing with elevation changes.\n\nThe Rieju MR 300 Racing suits traditionalists who prefer a carburetor and the backup of a kickstarter. Built in Spain, this MR range two-stroke appeals to those who want closed-cartridge front suspension and a slightly larger fuel tank for long days on the trail.\n\n## Key Differences\n\nFuel delivery is the most noticeable difference. The GasGas uses throttle-body fuel injection, while the Rieju relies on a traditional carburetor. Both feature a 6-speed gearbox, but their starting systems differ; the GasGas has only an electric starter, whereas the Rieju provides both electric and kick starting. \n\nSuspension components also vary. The GasGas uses a WP XPLOR 48 mm open-cartridge fork and a WP XACT shock with linkage, both offering 300 mm of travel. The Rieju uses a KYB 48 mm closed-cartridge fork with 300 mm of travel and a KYB shock with linkage. The Rieju holds slightly more fuel with a 9.8 L tank compared to the 9 L tank on the GasGas. The GasGas weighs 107.6 kg (without fuel), while the Rieju weighs 105 kg (dry); because these weights use different measures, they are not directly comparable. The GasGas EC 300 has a US list price of $10,799 before freight. The Rieju is sold in the US, but the 2025 list price is not confirmed. Neither manufacturer publishes horsepower figures for these engines, which displace 293.2 cc for the GasGas and 299.3 cc for the Rieju.\n\n## Which Should You Buy?\n\nYour decision comes down to how you prefer your engine to be fueled and started. Choose the GasGas EC 300 if you want the convenience of fuel injection and open-cartridge forks. Choose the Rieju MR 300 Racing if you prefer the simplicity of a carburetor, closed-cartridge KYB suspension, and the security of a backup kickstarter.\n\n## Frequently Asked Questions\n\n### Which bike has a larger fuel tank?\n\nThe Rieju MR 300 Racing has a larger fuel tank at 9.8 liters. The GasGas EC 300 features a 9-liter tank.\n\n### Do both motorcycles have fuel injection?\n\nNo, only the GasGas EC 300 features throttle-body fuel injection. The Rieju MR 300 Racing uses a carburetor.\n\n### Which motorcycle is lighter?\n\nIt is impossible to directly compare their weights based on the provided specifications. The GasGas weighs 107.6 kg without fuel, while the Rieju is listed at 105 kg dry.\n\n### Do these bikes have kickstarters?\n\nThe Rieju MR 300 Racing features both an electric starter and a kickstarter. The GasGas EC 300 is equipped only with an electric starter.\n\n## Dive Deeper\n\n- GasGas EC 300 — verified specs\n- Rieju MR 300 Racing — verified specs