The brand new O.S.Speed B2101 adopts square type bore/stroke which will get more flatness of the output as it contributes to greater feelings for entire driving scene.
The lower height outer head contributes for lower center of gravity. O.S.Speed B2101 comes with the 21J carb which include both 6.5mm and 6.0mm reducer for drivers' choice. It goes without saying that the DLC coated and Tungsten steel embraced crank shaft for the assertion toward the winning as the previous model has established.

Features: 

· Crankshaft: DLC Coated Crankshaft with Tungsten weights and potted with silicone.

· Crankcase: All new crankcase design. Rear ceramic ball bearing.

· Outer Cylinder Head and Button: Newly designed and improved head better cooling capacity, light weight due to machined cooling holes and lower CG.

· Carburetor: Black anodized carburetor body and metal insulator enable to run the engine with richer mixture.

· Carburetor metering needle: 21J carburetor with 6.5mm/6.0mm reducer.

Specifications:

· Displacement: 0.211 cu in (3.46 cc)

· Bore: 0.646 in (16.4 mm)

· Stroke: 0.646 in (16.4 mm)

· Practical RPM Range: 4,000-42,000

· Output: 2.65 ps/34,000 rpm (2.61hp/34,000rpm)

· Weight: 12.42 oz (352 g)

Included:

· Glow Plug RP3 (1pcs)

· Exhaust Seal Ring (1pcs)

• Dust Caps (3mm, 16mm, 18mm/ 1pc. each)