Description:</b><br>New Shifter Kit/Motorized Bike Jackshaft Kit For Regular Bicycle 66cc 80cc Gas Motorized Bicycle Manual excluded.Fits 415 Chain less noise，ride motorized bike as normal bike with pedal<br>1 x Jackshaft Kit<br>motorized bike with jackshat kit installed on it gets less noise, can ride bike as normal bike too <br>Higher installation ability is needed for this item. Please do not place the order if you have no idea about installation or adjustment for this kit. Thank you.