SHIMANO Altus FD-M313 Front Derailleur - 7/8- Speed - Down Swing - Dual Pull - Multi-ClampAltus wide link 7 8 speed compatible dual pull multi fit front derailleur for recreational off road use. Compact conventional swing design Low friction wide linkage reduces shifting effort and increases rigidity Dual pull design allows it to be used with top or bottom cable routing Multi clamp band is compatible with all frame dimensions 66 69 degree chainstay to seat tube angle range For outer chainring size from 42 to 48 tooth, total capacity 20