Bolt Clockwise Top Mount Starter Bolt Diameter:70mm/2.76″,12 Teeth Replacement for 4 stroke 50cc 70cc 110cc 125cc ATV Quad Dirt Bikes Go Kart Replacement for most of the kids ATVs TaoTao AIM-EX SUNL etc Warranty:We are always available to help our customers.Please message us for replacement or refund if you are not satisfied with the order pls confirm The size of the product meets your requirements before you purchaseNote:please allow 0.5-1 inch difference due to manual measurement.1inch=2.54cmReplacement for:4 stroke 50cc 70cc 110cc 125cc ATV quad dirt bikes go kartmost of the kids ATV Taotao AIM-EX Sunl etcPackage Included:Starter x 1pc Keychain x 1pcAbout After-sales service:First of all,we sincerely apologize to you for returning exchange or refund caused by any reason.Please be assured,no matter what the problem.Please contact us first,we will do our best to solve any problem for you.We attach great importance to every customer.Your satisfaction will be our greatest impetusAbout