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In addition to the O.S. SPEED B21 Adam Drake edition 2, we are proudly releasing O.S. SPEED B21 Ronda Drake edition featuring a pink cooling head and pink carburetor restrictors, which are her image color. Ronda Drake is the wife of Adam Drake, and she is also a racer. Now we have two different colors in the same specifications; bore x stroke 16.4 x 16.55mm, the double-counter weight embedded crankshaft with DLC hard coating, a ceramic rear ball bearing, an o-ringed inner head, and an easy adjustable ball link.
Spec.
- Displacement： 3.49ccm
- Bore: 16.4mm
- Stroke: 16.55mm
- Output: 2.65 ps - 34,000 r.p.m.
- Practical r.p.m.Range: 4,000-42,000 r.p.m.
- Weight: 362g
