O.S. Engine MAX-R21 On-Road

Club racers rejoice! The R21 is based on the Championship heritage of the R2102 engine and delivers an unbeatable blend of power and value for 1/8 on-road racing. Its crankshaft and piston/liner are designed with premium performance and easy maintenance in mind, which makes it an ideal choice for beginners. This engine is upgradeable with high-performance O.S. Speed parts, letting you realize your full winning potential. High performance. Low price. That’s what you can expect from the R21, only from O.S.

Features:

• The perfect power plant for rookies and club racers.
• Newly developed crankshaft and piston/liner with the capability to upgrade later to a Spec-class performer.
• RP7 Turbo glow plug.
• 8.5 mm carb reducer.
• Speed flywheel collet.
• Exhaust seal ring.
• Dust cap set.

Specs:

• Weight: 340g
• Displacement: 3.49cc
• Bore: 16.08mm
• Stroke: 17.20mm
• Power Output: 2.71 hp  @ 32,000 RPM
• Practical RPM Range: 4000~44000
• Includes: RP7 Turbo glow plug, exhaust seal ring, 8.5 mm carb reducer, dust cap set
• Requires: Glow fuel, glow igniter, fuel filter, fuel bottle, starter and T-2080SC Tuned Pipe Set