R21 1/8 On-Road Club Racer Engine (OSMG2032)

R21 1/8 On-Road Club Racer Engine is a high-performance powerplant designed for 1/8-scale on-road racing, delivering a strong blend of power and value for club racers and beginners alike. Its crankshaft and piston/liner are engineered for premium performance and easy maintenance, making it an ideal choice for newcomers. It can be upgraded with OS Speed parts to reach Spec-class performance as you progress.

Built for rookies and club racers, the engine features a newly developed crankshaft and piston/liner that can be upgraded to transform it into a Spec-class performer. It also uses an RP7 Turbo glow plug for reliable ignition and comes with an 8.5 mm carb reducer, a speed flywheel collet, an exhaust seal ring, and a dust cap set to support tuning and maintenance.