O.S. Speed B21 Adam Drake Edition II 1CH00

Reference: OS1CH00

O.S. Speed B21 Adam Drake Edition II

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Designed to dominate.

Power your way to the podium with this special Speed B21 engine that's packed with upgrades from champion Adam Drake. It’s a terrific choice for trucks and buggies that delivers competition-caliber performance for demanding drivers. Featuring a semi-long stroke, this engine also boasts a DLC crankshaft with double tungsten counterweight and a redesigned cylinder lining with updated porting. Be ready for the big leagues with the Speed B21 Adam Drake Edition!

Designed and tested to Adam Drake's race-winning specifications.
Great for buggies and trucks.
Newly designed cylinder liner with new porting.
Newly designed DLC crankshaft with double tungsten counterweight.

New semi-long stroke.
6.5 and 8.0 mm carburetor reducers.
Ceramic rear bearing.
21J carburetor.

Specifications:
Displacement: 3.46cc
Output: 2.61ps @ 34,000 rpm
Bore: 16.4mm
Stroke: 16.55mm
Practical RPM Range: 4,000 ~ 42,000 rpm
Weight: 353g

Includes: