OS Engine OS Speed B2103 Type R Combo Set (Off-Road/#1BP01)

The OS Speed B2103 Type R engine is a 5-port long-stroke motor. It impresses with its high torque in the mid to high RPM range, featuring linear power delivery and low consumption. The crankcase, crankcase cover, and carburetor have a completely new design. The new DLC-coated crankshaft is equipped with two tungsten weights for perfect balancing and maximum smoothness. The B2103 Type R features a high cooling head for optimal cooling in high ambient temperatures. An O-ring between the cooling head and combustion chamber insert reduces vibrations and protects against contamination through optimal sealing. The new 22E carburetor ensures perfect throttle response and maximum power output.

Technical details:

• Long-stroke off-road high-performance engine
• High torque in the mid and high RPM range
• Low fuel consumption
• All parts compatible with Type S
• High cooling head for maximum engine cooling
• DLC-coated crankshaft with two tungsten weights
• Newly designed 5-port cylinder and piston set
• Cooling head with silicone O-ring
• New 22E carburetor for maximum power output

Displacement: 3.49 cc, Bore: 16.27 mm, Stroke: 16.80 mm, Ports: 5, RPM range: 4000 - 42,000 RPM, Power: 2.64 HP / 34,000 RPM, Weight: 347 g.