B21 RONDA DRAKE EDITION
O.S. SPEED B21 RONDA DRAKE EDITION (1CH02)
O.S. SPEED B21 RONDA DRAKE EDITIO Combo Set (1CH03)
TB03 EFRA2155(T-2100SC)+MB01-75(M2000SC)
- 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： 3.49cc / 0.213 cu.in.
Bore: 16.4mm / 0.646 in.
Stroke: 16.55mm / 0.652 in.
Output: 2.65 ps / 2.61 hp / 34,000 r.p.m.
Practical r.p.m.Range: 4,000-42,000 r.p.m.
Weight: 362g / 12.77oz -
Features
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A pink cooling head and pink carburetor restrictors
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Bore x stroke 16.4 x 16.55mm, which is the maximum in the IFMAR regulation.
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A double-tungsten counter weight crankshaft with DLC hard coating and silicon filler.
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An o-ringed inner head, which absorbs vibration and prevents dust coming into the combustion chamber.
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6.5mm and 7.0mm carburetor restrictors.
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O.S. SPEED P3 GOLD glow plugs as a standard accessory, which has more powerful low-middle range and stable idling compare to standard P3 glow plug.
Photo gallery
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