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OS Engines R21 1/8 On-Road Club Racer Engine
OS Engines R21 1/8 On-Road Club Racer Engine
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Bore 0.64 in (16.3 mm) Crankshaft Threads UNF1/4-28 Cylinders Single Displacement 0.213 cu in (3.49 cc) Plug Type Turbo RP7 glow plug Power Type Glow Product Height 3.6 in (91.2mm) from backplate to front bearing Product Length 2.5" (64.5 mm) Product Width 1.8 in (45 mm) at mounting tabs RPM Range 4,000 - 44,000 rpm Stroke 0.67 in (17.2 mm) Total Weight 12.35 oz (350 g) Customer ReviewsNo comments
