O.S. SPEED B21 Ronda Drake Pink Edition TB03/MB01-75 Combo

 

O.S.SPEED B21 Ronda Drake (Pink) Edition 3.5cc Buggy Engine with Exhaust Combo

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.



Features:
 

• Difference vs ADII: Pink cooling head and pink carburetor restrictors


• Bore x stroke 16.4 x 16.55mm - which is the maximum in the IFMAR regulations


• A double-tungsten counter weight crankshaft with DLC hard coating and silicone filler


• An o-ringed inner head, which absorbs vibration and prevents dust coming into the combustion chamber


• 6.5mm and 7.0mm carburetor restrictors (pink)


• O.S.SPEED P3 GOLD glow plug is standard accessory, which has more powerful low-middle range and stable idling compare to standard P3 glow plug


• Combo set including TB03 EFRA 2155 Pipe (T-2100SC) & MB01-75mm Manifold (M2000SC)




 
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Specs:
 

• Displacement: 3.49cc


• Bore: 16.4mm


• Stroke: 16.55mm


• Output: 2.61 hp @ 34.000RPM


• Practical RPM Range: 4.000-42.000


• Weight: 362g




 
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