O.S.SPEED
ENGINE:O.S.SPEED R21 GT

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Displacement 3.49cc / 0.213cu.in Code No.1CC00

Comboset 1CC01
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Output 2.65ps/2.61hp/34,000r.p.m
Bore 16.08mm/0.633in.
Stroke 17.20mm/0.677in.
Practical r.p.m.Range 4,000-42,000r.p.m.
Weight 369g / 13.02oz