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OS Engines  |  SKU: 1CH01

Adam Drake Edition OS SP-B21 Nitro EngiDA-771250

$895.00
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Description

OSSPEED B21 ADAM DRAKE EDITION 2 is a brush-up of the previous model that was born on the advice of world-class pro racer Adam Drake. I finished the engine that could win a big race that matched his requirements. Bore x stroke of 16.4mmx16.55mm given only to this engine. Newly designed crankshaft for further improved driving feeling. Incorporating the latest engine factors, such as the inner head using an “O” ring with reduced vibration and improved dust-proof performance, and the carburetor with a ball link that allows easy adjustment of the linkage used in B2103.

Specs ---------------------------
stroke volume: 3.49cc / 0.213 cu.in.
bore: 16.4mm / 0.646 in.
Stroke: 16.55 mm / 0.652 in.
Output 2.65 ps / 2.61 hp / 34,000 rpm
Practical rotation speed: 4,000-42,000 rpm
Weight: 353g / 12.45oz

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OS Engines

Adam Drake Edition OS SP-B21 Nitro EngiDA-771250

$895.00
OSSPEED B21 ADAM DRAKE EDITION 2 is a brush-up of the previous model that was born on the advice of world-class pro racer Adam Drake. I finished the engine that could win a big race that matched his requirements. Bore x stroke of 16.4mmx16.55mm given only to this engine. Newly designed crankshaft for further improved driving feeling. Incorporating the latest engine factors, such as the inner head using an “O” ring with reduced vibration and improved dust-proof performance, and the carburetor with a ball link that allows easy adjustment of the linkage used in B2103.

Specs ---------------------------
stroke volume: 3.49cc / 0.213 cu.in.
bore: 16.4mm / 0.646 in.
Stroke: 16.55 mm / 0.652 in.
Output 2.65 ps / 2.61 hp / 34,000 rpm
Practical rotation speed: 4,000-42,000 rpm
Weight: 353g / 12.45oz
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