Check the listing for details. SRAM AVID CENTERLINE Disc Brake Rotor 6-Bolt 160/180mm MTB Road Bike Rotors. Color: Silver, Condition: New. Listed at 15.99 USD. Description: 1. SRAM Centerline Disc Rotor with 6 Steel Rotor Bolts 2. CENTERLINE ROTOR - CenterLine cutting edge design provides smooth engagement, consistent performance, and quiet running braking surface 3. CONSISTENT FRICTION - Keeps the center of friction consistent throughout rotation, thereby minimizing vibration and offering consistent performance 4. COMPATIBILITY - SRAM Centerline rotor is compatible with all Avid and SRAM disc brakes and includes 6 attachment bolts for mounting 5. 12-SPOKE DESIGN - One-piece steel design with 12 spokes optimizes the rotor strength and helps dissipate heat quickly to reduce warping and distortion SRAM Rotor Specification: Brand: SRAM Color: Silver Size :160mm/180mm Weight: 160mm±113g, 180mm±144g, Hub/Brake Compatibility: 6-Bolt Disc Pattern: Sta.Description: 1. SRAM Centerline Disc Rotor with 6 Steel Rotor Bolts 2. CENTERLINE ROTOR - CenterLine cutting edge design provides smooth engagement, consistent performance, and quiet running braking surface 3. CONSISTENT FRICTION - Keeps the center of friction consistent throughout rotation, thereby minimizing vibration and offering consistent performance 4. COMPATIBILITY - SRAM Centerline rotor is compatible with all Avid and SRAM disc brakes and includes 6 attachment bolts for mounting 5. 12-SPOKE DESIGN - One-piece steel design with 12 spokes optimizes the rotor strength and helps dissipate heat quickly to reduce warping and distortion SRAM Rotor Specification: Brand: SRAM Color: Silver Size :160mm/180mm Weight: 160mm±113g, 180mm±144g, Hub/Brake Compatibility: 6-Bolt Disc Pattern: Sta.