Review on SHIMANO Altus Right 7 Speed SL M315 7R by Richard Payne

These Shimano derailleurs work great! Installation was easy and straightforward. I'm glad I went with the package offered and bought the grips with trigger switches. The original Trek cranks have been removed, and these longer cranks are necessary since the new levers are narrower than the original twist grip shifters. Adjusting cables and setting switches for proper SIS operation is a breeze after watching Park Tools YouTube videos. It was a pleasure to replace those worn out derailleurs with a set of Shimano trigger derailleurs.