GOOFIT Universal 7/8'' Brake Lever Greaser Thumb Throttle Assembly for Taotao Roketa Alpha Baja Kazuma ATV Go Kart Size: Handlebar hole diameter:7/8''or 22mm Fit for Taotao Roketa Alpha Baja Kazuma ATV Go Kart Thumb throttle with speed control governor,brake lever with parking brake Thumb throttle dual brake lever includes parking list switch and connection wires Reminder/Note:To ensure you purchase the correct product,please read the product description carefully or image size,thanks for your attention.if you have any issues or need any help,welcome to contact with us before or after your purchase.we will do our best to help you solve it.