Great value triple front derailleur that delivers accurate and low-friction shifting for. Multi-fit, Dual pull and top swingWith the use of included adapters, the derailleur can be mounted to 31.8 / 34.9 mm seat tubeCompatible with 6/7/8-speed drivetrainsTop swing dual pull design is light action and compatible with either top or bottom pull framesFor use on bikes with 63 to 66 degree seat tube to chainstay angleDeveloped to work with 48 tooth outer chainring47.5 / 50 mm chainline