AD17-M Front Derailleur Clamp Shim reduces 34.9mm to 31.8mm

The Shimano AD17-M Front Derailleur Clamp Shim is a great solution for adjusting your front derailleur fit. It effectively reduces the seat tube size from 34.9mm to 31.8mm. This shim is perfect for ensuring your front derailleur and seat tube work well together. Technical specs: It weighs only 4 units, and is designed for a front derailleur clamp size of 31.8 (1-1/4') fitting into a 34.9 (1-3/8') seat tube.

Using this Shimano AD17 - M Front Derailleur Clamp Shim is easy. First, check the size of your front derailleur clamp and the seat tube. Make sure the derailleur clamp is 31.8mm and the seat tube is 34.9mm. Then, place the shim between the derailleur and the seat tube. Ensure it fits snugly. When using, avoid over - tightening the clamp as it might damage the shim. For maintenance, keep it clean. Wipe it down regularly with a dry cloth. If it gets wet, dry it immediately to prevent rust.