ship SP17 MTB bicycle bike Hydraulic type resin

Material: resin+metal BARADINE with spring
Model: DS-17s&SP17
suitable for: M666,M785,M985 Hydraulic type disc brake
features
1.Wear and tear small for the disc brake, protect the disc brake well
2. Brake noise is small when working.
3. Run-time is short.
4. resin BARADINE is the resin and the metal particles mixed