The F10BS brake pads are a blend of resin and metal components for versatile use on both mountain bikes and roads. This part combines the low noise of the resin lining with the durability of the metal lining. In addition, this brake pad sits on a metal backing for strength.F10BS brake pads offer the braking performance of a metal/ceramic compound.F10BS brake pads offer maximum braking performance with minimum noise. They combine the comfort of organic linings with the performance of metals.This brake pad fits all 4 piston calipers TEKTRO.The Q10RS provides a very good braking feel.These pads fit all TEKTRO 4 piston calipers for touring and cross-country use.