O.S.SPEED
ENGINE:O.S.SPEED B21 RONDA DRAKE EDITION

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Displacement 3.49cc / 0.213 cu.in. Code No.1CH02
Comboset:.1CH03
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Output 2.65 ps / 2.61 hp / 34,000r.p.m.
Bore 16.4mm / 0.646in.
Stroke 16.55mm / 0.652in.
Practical r.p.m.Range 4,000-42,000 r.p.m.
Weight 362g / 12.77oz