Great value front derailleur that delivers accurate & low-friction shifting for Multi-fit Dual pull & top swin With the use of included adapters the derailleur can be mounted to any size seat tube Compatible with 6/7-speed drivetrains Top swing dual pull design is light action & compatible with either top or bottom pull frames For use on MTB style bikes with 66 to 69 degree seat tube to chainstay angle Developed to work with 48 / 38 /28 tooth chainring configuration