Shimano FD-TY510 hybrid front derailleur, top swing, dual-pull and multi fit for 48TGreat value front derailleur that delivers accurate and low friction shifting for. Multi fit, Dual pull and top swing 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 and compatible with either top or bottom pull frames For use on Hybrid style bikes with 63 to 66 degree seat tube to chainstay angle Developed to work with 48 tooth