SHIMANO Unisex – Adult's Alivio Rd-m3100 Rear derailleur, Black, Standard Size

The Shimano Alivio rear derailleur with Shadow RD technology is even better than its predecessor for trail and trekking use

Thanks to the very flat design and the optimised spring tension, a stop on the chain stay is prevented and even trail obstacles have hardly a chance to damage the rear derailleur.

The rear derailleur supports nine gear levels and the HyperGlide system which protects the drive components from premature wear.