
New! 21XR-B(P)
Precision power for club competition!
Take the guesswork out of kit building with the 21XR-B(P). If you are racing, building or upgrading an 1/8 scale buggy, there is no better engine on the market. All O.S. Engines are engineered to deliver maximum performance, quality and value and the 21XR-B(P) is no exception. With its easy-tune 22B carburetor and proven O.S. cooling technology, the 21XR-B(P) is the engine you want when things get hot.
Specifications
Displacement: 0.213 cu in (3.49 cc),
Bore: 0.641 in (16.27 mm),
Stroke: 0.661 in (16.8 mm),
Practical RPM Range: 4,000-40,000,
Output: 2.45 ps @ 33,000 rpm,
Weight: 13.05 oz (370 g),
Requirements: Glow fuel, installation, glow plugs building and field equipment



