OS Max Speed B21 Adam Drake IIII Motor Kit + Line 2089 S27763

🛠️ The OS Max Speed B21 Adam Drake IV + Line 2089 is the new competition engine developed with Adam Drake, offering more torque, better response, and optimized power across the entire operating range. With a redesigned liner, crankshaft, and cylinder head, it delivers high-level performance for buggy 1/8. A complete kit ideal for demanding drivers.

⚙️ Technical specifications

• OS SPEED B21 Adam Drake 4 competition engine
• Adam Drake specifications: optimized sleeve, crankshaft, and cylinder head
• Displacement: 3.49 cc
• Bore: 16.4 mm
• Stroke: 16.55 mm
• Power: 2.65 PS / 2.61 HP @ 34,000 rpm
• Operating range: 4,000 to 42,000 rpm
• Weight: 352 g
• Complete line 2089 included

🧩 Contents

• OS SPEED B21 Adam Drake IV engine
• Exhaust line 2089
• P3 Gold spark plug
• 6mm and 8mm blue aluminum reducers
• Exhaust gasket
• 3/16/18 mm dust cap sets

🎯 Who is it for?

• 1/8 competition drivers
• Modelers looking for power, torque, and reliability
• Fans of Adam Drake setups

🔄 Compatibility

• Buggy Nitro 1/8 Off-Road
• OS SPEED 20xx series lines
• OS SPEED spark plugs (P3 recommended)