Material: Made of high strength aluminum alloy, light weight, stylish appearance, and high compatibility. Anodic anti-oxidation design, will shields the main body of the aluminum alloy from corrosion and oxidation, ensuring that it remains in pristine condition even after long-term use.
Crank Parameter: Crank weight: 550g. Crank related holes distance: 74mm. Crank Arm Length: 170mm. This crank will fit most standard square taper bottom bracket.
Note:The crank and chainring are only used for single speed, can not be used with other speed or chainring. Using the crank and chainring with a different speed or chainring configuration could result in improper functionality, potential damage to the components, and safety hazards.
Professional Details: The worm positive and negative gear disc design ensures stable and reliable chain operation, minimizing the risk of the chain falling off during use. This feature is essential for maintaining the overall functionality and safety of the product.