CYCEARTH 4 Pairs Bicycle Bike Disc Brake Pads for SRAM Avid Elixir E1 E3 E5 E7 E9 CR XO XX DB1 DB3 DB5 Nutt Oil BrakeSemiMetallic/Sintered Metal SemiMetallic

Bicycle Disc Brake Pads Compatibility: SRAM Avid Elixir E1 E3 E5 E7 E9 CR XO XX DB1 DB3 DB5 NUTT oil brake Semi-metallic brake pads?copper and ceramic alloy?: 1.Multi-metallic brake pads are made of copper and ceramic for long life. 2.Strong wear resistance and less damage to the rotor disc. 3.Low noise and good hydraulic braking performance. 4.Under high temperature conditions, it has excellent heat dissipation, high temperature resistance, and strong braking force. Sintered metal brake pads: 1.Bear high temperature and resist brake fade to last longer. 2.Better brake performance in bad conditions like muddy,watered,gritty,sandy trails. 3.Suit all weather. 4.Generally longer lasting. 5.Fast and reliable hydraulic brake power.