- Brand new and high quality: The Bafang mid-engine BBS 01 02 series 36T crankset is brand new and built from high quality 6061 aluminum alloy to ensure durability and reliability. It delivers smooth operation and long service life. - Durable and practical: Made from 6061 aluminum alloy, this crankset is designed to withstand the demands of e-bikes and provides smooth performance even in difficult conditions. - Perfect offset correction: The 36T chainring provides precise offset correction specially designed for Bafang BBS 01 02 engines. This correction ensures optimal alignment and efficient power transmission, improving overall e-bike performance. - Wide compatibility: Fits Bafang BBS central motor models including 36V250W, 36V350W, 36V500W, 48V350W, 48V500W and 48V750W. It is compatible with 6-7-8-9 speed chains, offering versatility for various bike setups. - Use scenarios: - Upgrading a city or commuter e-bike for smoother power transfer and reliable performance on hills - Replacing a worn crankset on a mountain or trail e-bike to restore ride quality - Building or upgrading a versatile e-bike that can accommodate different motor configurations and chain setups