100CC Dio Reed Valve Window Piston Bicycle Engine Kit 21mm OKO Carburetor

Dio Reed Motorized Bicycle Engine Kit. Take your 2 stroke Motorized Bike to the next level.  This is a complete Dio Performance 100CC Kit including the Engine, U-Bolt Mounting Hardware, and Stock Exhaust Pipe.  The included Dio Reed Valve, Window Piston, 21mm OKO Flat Slide Carburetor, Air Filter and Modified Dio Cylinder round out this performance package that will yield tons of torque and increased speed. Upgraded 4-bolt Chain Tension Bracket  This performance kit includes ALL of the following:YD100 100cc 2-Stroke Engine: Stainless steel allen boltsEnhanced balanced crankUpgraded bearings + 60% thicker crank case around bearingsLarge intake port (40mm bolt hole width)40mm crank stroke (more powerful, efficient, and reliable)Type B piston (high wrist pin)Larger 8mm  engine mount studsMounting Kit & AccessoriesFuel tank w/fuel cap, fuel valve, fuel filter, and fuel lineChain Guard, 415 Heavy duty Chain, and ball bearing 4 bolt chain idlerStandard chrome mufflerTwist grip throttle