Size: Oil pipe length:600mm, Bottom Pump installation pitch:51mm Fit for 2 stroke 43cc 49cc FS529 Pocket Bike mini quad,R1 pocket bike Z600 pocket bike,43cc 49cc stand-up gas scooter, Fit for C1 FS513 mini chopper DR50 DB801A mini dirt bike(read description for detailed fitment infos) Ergonomic alloy brake lever for optimum comfort and performance. 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. pls confirm The size of the product meets your requirements before you purchase Note:please allow 0.5-1 inch difference due to manual measurement.1 inch=2.54cm Package Included: Front Disc Brake Master Cylinder x 1pc Keychain x 1pc Replacement for: X1 X2 X3 super pocket bike Cateye X7 FS529 FS509 super pocket bike R1 pocket bike Z600 pocket bike 43