PRODUCT DESCRIPTION

12T Sprocket for internal reverse 300cc Engines used on all TrailMaster, 300cc models

Original Engine sprocket is 14T, the 12T will change the overall sprocket gear ratio to increase pick up, may however affect overall top speed.

NOTE* EVERY TOOTH ADDED OR SUBTRACTED ON THE ENGINE SPROCKET IS THE EQUIVALENT OF ADDING OR SUBTRACTING 3 TEETH AT THE AXLE SPROCKET.