Steel Back All-Purpose Semi-Metallic Disc Brake Pads Mounted on a strong steel backing plate, Jagwire Mountain Sport Semi-Metallic Disc Brake Pads (DCA078) feature a high-performance, semi-metallic compound which blends the low-noise aspect of a resin pad with the durability of a metallic pad to give you a great all-purpose brake pad for most riding conditions. All pads are sold in pairs and include any necessary springs or clips. Heatshield Technology Prevents Overheating Jagwire disc brake pads also feature HeatShield technology which resists heat build-up and stays cooler so you can enjoy superb braking control in critical situations that would normally cause pad overheating and fade. Designed to last longer than resin pads, these DCA078 pads are compatible with Tektro Mechanical, Lyra, IOX brake sets for those in search of reliable and consistently durable brake pad performance. Braking Performance That's Second To None Far better than an upgrade from OEM, Jagwire Mountain Sport Semi-Metallic Disc Brake Pads deliver a fit and functional performance which is second to none. For hot Australian conditions, you'll definitely get more bite and smoother braking with Organic pads, but for extended downhill trails where your brakes run very hot, the Pro Extreme Sintered or Semi-Metallic pads are the better choice.