OS OSSP B21 Adam Drake Edition 4
Brand: OS Engines
Part No: SCH-OS1FH00
Out Of Stock
Request Stock NotificationThe OS Engines O.S. SPEED B21 Adam Drake Edition 4 (part number SCH-OS1FH00) is the latest collaboration with world‑famous O.S. team driver Adam Drake. Built to his specification, this edition features a redesigned cylinder liner, crankshaft and outer head to deliver better balance, more torque and increased power for enhanced driving performance.
With a compact 3.49 cc displacement and an output of 2.65 ps (2.61 hp) at 34,000 rpm, the B21 Adam Drake 4 offers a broad practical operating range from 4,000 to 42,000 rpm. Weighing just 352 g, it combines strong performance figures with refined response characteristics shaped by Adam Drake’s input.
Performance Enhancements
- Redesigned cylinder liner for improved balance and response
- Reworked crankshaft to increase torque and power delivery
- Updated outer head to complement the new internal geometry
Key Specifications
- Displacement: 3.49 cc / 0.213 cu.in.
- Bore: 16.4 mm / 0.646 in.
- Stroke: 16.55 mm / 0.652 in.
- Output: 2.65 ps / 2.61 hp @ 34,000 rpm
- Practical RPM range: 4,000–42,000 rpm
- Engine weight: 352 g / 12.42 oz
Standard Accessories
- O.S. SPEED P3 glow plug
- Reducer 6II (blue) AL2
- Reducer 8 mm (blue) AL
- Exhaust seal ring
- Dust cap set: 3 mm / 16 mm / 18 mm
Secured by Stripe
Specification
Displacement: 3.49 cc / 0.213cu.in.
Bore: 16.4mm / 0.646 in.
Stroke: 16.55mm / 0.652 in.
Output :2.65 ps / 2.61 hp / 34,000 r.p.m.
Practical RPM range: 4,000-42,000 r.p.m.
Engine Weight:352g / 12.42 oz.
Standard accessories
O.S. SPEED P3 glow plug
Reducer 6II (blue) AL2・Reducer 8mm (blue) AL
Exhaust seal ring
Dust cap set 3mm/16mm/18mm
Key Info:
- Brand: OS Engines
- Part No: SCH-OS1FH00
- Barcode: 5051294216061
- Displacement: 3.5cc (0.21ci)
- Starter: Flywheel Start
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