OS1CH00 OS SPEED B21 ADAM DRAKE EDITION II
 
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This new edition comes with a new design cylinder liner with new porting and a new design crankshaft with double tungsten counterweight. The new bore x stroke is designed with Adam Drakes's requirements in mind. This OS engine includes some carburetor reducers (6.5mm and 8.0mm) to suit both powerful drive and fuel economy drive OS SPEED 5. P3 GOLD plug is used for more consistent idling. Features: Designed according to Adam Drake's advice and taste. New design cylinder liner with new porting New design crankshaft with double tungsten counterweight New bore x stroke (see the attached specifications) Carburetor reducers are 6.5mm and 8.0mm to suit both powerful drive and fuel economy drive OS SPEED 5. P3 GOLD plug is used for more consistent idling. Specs: Weight: 353g Displacement: 3.49cc Bore: 16.40mm Stroke: 16.55mm Power Output: 2.65PS/2.61HP @ 34000RPM Practical RPM Range: 4000-42000

OS SPEED B21 ADAM DRAKE EDITION II

SKU: OS1CH00
£385.00Price