Shimano's Alivio Front Derailleur features wide pivots and a rigid cage for fast shifting and trail-worthy durability. This 9-speed compatible derailleur also gives you clearance for mud guards or wide tires.
Capacity is calculated by subtracting your smallest chainring's tooth count from the largest chainring's tooth count. Example: 46/34/24 chainrings: 46 - 24 = 22-tooth capacity.
Your seat-tube diameter determines the needed derailleur clamp size.