Sometimes however, the riding situation is just too demanding for resin to deal with (it's better for quick grabs when you want to shed speed fast, but lacks the heat tolerance for long, tough runs), and metal pads are the answer. Problem is, not all brake calipers have a compatible metal pad option; the MT500 is one such model. Easiest solution is to swap out the calipers for M615 or M6000 Deore, which do take metal pads (and Ice Tech pad options with cooling fins) , which will plug straight onto the existing lines.