New Shimano Deore XT M771 AF 3x9-Speed MTB Front Derailleur. 34.9MM Clamp and New In Box. AF= adapters for 31.8 and 28.6mm. Also included are the Shimano Service Instructions and attached height adjustment decal. Clean, tight, straight, no rust, strong spring and perfect mechanical and mint cosmetic condition. Dual-pull, bottom-swing and for a triple crank Made in Japan quality from 2008. 156 grams/5.4oz. FD2153.