Combination SRM magnet and Profesional Chain Catcher | Adjustable magnet-arm for precise alignment with compact and standard cranksets | Prevents missed front shifts and frame damage from a dropped chain | For use with braze-on front derailleurs only | Compatible with Campagnolo, Shimano and SRAM front derailleurs | Two-Bolt radius washer allows chain catcher "finger" adjustment independent of the front derailleur | Precision machined, anodized 6061 T6 aluminum | 22.5 grams | Lifetime warranty
UPC: 858953003711