Shimano 105 RD-5701 Rear Derailleur 10 Speed GS Medium Cage Black U176598

Shimano's new 105 group offers many of the same great features that have been integrated into their Dura-Ace and Ultegra groups. One such feature present in Shimano 105 5701 rear derailleurs is the wider central link that results in crisper shifting and longer lasting pivots and the capacity to work with wide range cassettes (up to 30T with a triple crankset and 32T with a double crankset). This medium cage example is best suited for use with either triple cranks, although it will work great with any cassette or crank. Get a taste of the latest technology present in Shimano's Dura-Ace and Ultegra groups at a fraction of the cost!