BikeYoke ShiftyShifty is a small but extremely effective little device for your SRAM 1x11 or 1x12 rear derailleur.Particularly when riding in wet and muddy conditions, we found out, that SRAM rear derailleurs lack shifting accuracy, due to the fact that the original pulley rotates with its plastic body on a steel axle.The pulley experiences extensive friction, when dirt, water or mud come into play and causes lack of precision or even "ghost-shifting" because the rear derailleur is not able to react smoothly to the trigger's action since the shifting cable cannot move freely.BikeYoke Shifty features an anodized 6061-T6 aluminum body, which encloses a stainless steel bearing for ultra-low friction, even when playing in the dirt.FeaturesShifty replaces the original plastic cable pulley wheel with an aluminum pulley, featuring a sealed (2RS) stainless steel bearing to ensure free rotation even when riding in muddy conditions.1x Shifty pulley - 6061-T6 aluminium, anodized, ball bearings1x axle for mounting1x bolt for mountingShifty is compatible with:XX1 11 SpeedX01 11 SpeedGX1 11 SpeedNX1 11 SpeedX1 11 SpeedEX 11 SpeedXX1 Eagle 12 SpeedX01 Eagle 12 SpeedGX Eagle 12 SpeedNX Eagle 12 SpeedX01 DH 7 Speed*On these rear derailleurs, the original rivet of the pulley must be removed and replaced with the bolt kit supplied with the Shifty.Installation InstructionsShifty Installation Bike Yoke Shifty Pulley Assembly