OS Engine O.S. Speed B2103 Type S (L-OS1BN00)

OS Engine O.S. Speed B2103 Type S (L-OS1BN00)

The OS Speed ​​B2103 Type S engine is a 3-port long-stroke engine. It impresses with its high torque in the medium to low speed range with linear power delivery performance and low fuel consumption. The crankcase, the crankcase cover and the carburettor have a completely new design. The new DLC-coated crankshaft has two weights of tungsten for a perfect balance and maximum smoothness. The B2103 Type S features a flat cooling head for optimized handling and vertical louvers at the top to maximize heat dissipation. An O-ring between the cooling head and the combustion chamber insert reduces vibrations and protects against contamination through the best possible sealing. The new 22D carburettor guarantees perfect response and linear power delivery.

FEATURES:

• long stroke OffRoad high performance engine
• High torque in low and mid rev range
• Low fuel consumption
• All parts compatible with the TYPE R
• High vertical ribbed cooling head for optimized driveability
• DLC coated crankshaft with two tungsten weights
• Newly designed 3 port cylinder and piston set
• Cooling head with silicone O-ring
• New 22D carburetor for linear power development

SPECIFICATION:

• Displacement: 3.49 cc
• Bore: 16.27 mm
• Stroke: 16.80 mm
• Ports: 3
• Speed ​​range: 4000 - 42,000 rpm
• Power: 2.64 hp / 34,000 rpm
• Weight: 347 g