Front Sprocket 420 14 tooth 17mm;Spacing between the mounting holes:30mm/1.18";Gear inner diameter:14mm/0.55":Outer diameter 61mm/2.4".
420-14T 17mm Engine Front Sprocket Replacement for 50cc 70cc 110cc 125cc 140cc 160cc Dirt Pit Bike Mini Bike ATV 4 Wheeler Motorcycle.
The sprocket is an important part of the engine air distribution system.It is connected with the crankshaft and cooperates with a certain transmission ratio to ensure the accuracy of the intake and exhaust time.
Good machining accuracy,wear resistance,good thermal stability,high temperature oxidation resistance.
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