O.S. Speed Adam Drake 4 (AD4) Engine (with or without Drake Break In)
The O.S. SPEED B21 ADAM DRAKE 4 engine features a redesigned cylinder liner, crankshaft, and outer head for improved balance, torque, and power.
- The description claims the engine provides better driving performance.
- The description claims the cylinder liner uses a new 3-port design.
- The description claims modifying the crankshaft bore diameter improves low-to-mid-range response.
- The description claims the outer head is lighter and has a better balance.
Specifications
- Drake Break In
- Yes Drake Break In, No Drake Break In
Variants (2)
- Yes Drake Break In — 802.30 CAD — Out of stock
- No Drake Break In — 731.30 CAD — Out of stock
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