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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.
Specifications:
| Displacement | 0.213 cu in (3.49 cc) |
| Bore | 0.633 in (16.08 mm) |
| Stroke | 0.677 in (17.20 mm) |
| Practical RPM | 4000-44000 |
| Power Output @ 32,000 rpm | 2.71 hp |
| Weight | 12.35 oz (350 g) |
| 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 |
