Race Face Bash Guard Light Designed to protect your inner and middle chainring, the Lightweight Bashguard is manufactured from bombproof, heat treated aluminum. The CNC machined profiling save 25% over other "cookie cutter" designs. Comes in 4 colors. Features4 bolt configuration (104 BCD)Claimed Weight: 105g-40t, 95g-36t, 65g-34t Built for: DH/FRSizes: Compact - 36 4 Bolt - 34, 36, 40BCD: 104mm | Race Face | Bash Guard Light | Black | 32