DesignedTo protect your inner and middle chainring,The Lightweight Bashguard is manufactured from bombproof, heatTreated aluminum.The CNC machined profiling save 25% over other “cookie cutter” designs. Comes in 4 colors. 4 bolt configurationTo cover a 34T or 36T ring Claimed Weight: 105g-40t, 95g-36t, 65g-34t Built for: DH/FR Sizes: Compact - 36 4 Bolt - 34, 36, 40