Sintered cycle disc brake padsClarks sintered cycle disc brake pads use harder compound pad with increased carbon content. Sintered pads are designed to deliver maximum performance under stress and extreme conditions. Consistent through sustained riding they are ideal for hydraulic brake systems. Model Compatibility: DISC BRAKE PAD COMPATIBLE MODELS VX814/VRX814 Hayes HFX -Mag, HFX-9 MX1 Supplied with spring clips where applicable