For riders looking for premium performance, Jagwire Pro Semi-Metallic pads feature a lightweight aluminum backing plate, reducing the weight by nearly 50%. The high- performance semi-metallic compound combines the low-noise and positive braking feel of a resin pad with the longevity and wet-weather performance of a metallic pad. WHEN TO USE: Perfect for road bikes, XC race, or any other bike where every gram counts.Compatibility: SRAM® Red eTap AXS HRD Monoblock (2019), Red eTap HRD (2016-2019), Red 22 (B1); Force 22, Force 1; CX1; Rival 22; Apex 1; S900 HRD; S700 (B1); Level Ultimate (A1), Level TLM (A1)