Semi-metallic pads are for lighter weight riders, and riding where lots of brakes are not required, like cross country, and riding in flatter areas. They also have a large amount of initial grab and are much quieter. I know I hate brake squeal, and Im sure you do too. One big disadvantage of these pads is that they wear out quicker. Also dont run these pads when it is muddy, wet, or even very dusty conditions.

Multi-Metal pads and sintered copper-based pads will be better if you are a heavier rider. These pads are recommended for riding in wet, muddy, or dusty conditions. Although they are more noisy, and do not have as much of an initial bite as organic pads, you will definitely notice the increased performance at the end of your run.

If you find that the brake pads are too thick to fit, it may be caused by two problems:

1. Your brakes have been used for a long time, lead to the clearance becomes smaller due to the brake fluid or the brake cylinder or other reason and cannot be installed.
2. The thickness of the brake pad deviates from the normal tolerance range, which is rarely the case.

• The solution: Recalibrate the brakes or grind off a little bit of the brake pad surface.