Rieju MR RACING 300i vs AJP SPR 310R (2026)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Rieju MR RACING 300istacks up against the AJP SPR 310R. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecRieju MR RACING 300iAJP SPR 310R
Model year20262021
Price$11,699
Engine298 cc298 cc
Weight103 kg
Seat height950 mm38 mm
Fuel capacity9.0 L2.5 L
Fuel typepetrolpetrol
TransmissionManual, 6 speed, Chain6-speed
Front brakesHydraulic DiscSingle disc
Rear brakesHydraulic DiscSingle disc
TiresMichelin® Enduro Medium 90/90 R21 / Michelin® Enduro Medium 140/80 R1890/90-21 / 140/80-18

Rieju MR RACING 300i vs AJP SPR 310R — which should you buy?

Picking between the Rieju MR RACING 300i and the AJP SPR 310R usually comes down to the numbers you care about most. On paper, the Rieju MR RACING 300i brings its published horsepower in a 103 kg package, while the AJP SPR 310R counters with its own power figure.

Our spec tables above highlight the winning number on each line. For the full rider-focused reviews including real-world fuel economy, service costs and available colors, click into either bike: