High-strength CNC machined aluminium chain guide with a T6 heat treated body provides durable performance while remaining lightweight. The anodised surface offers corrosion resistance for long service in varied riding conditions. Compatible mounting options and chainring range - Mounts with ISCG03 and ISCG05 interfaces and uses a BB conversion adapter for mounting on different rear structures. - Suitable for chainrings in the 32T to 38T range. ISCG conversion adapter and bottom bracket compatibility - ISCG conversion adaptor designed for frames with 68/73mm width. - Compatible with Shimano BB50, BB51 and BB70 bottom bracket shells as well as Sram GXP bottom brackets. - Note: suitable for outer bearing systems only; not compatible with pressfit or other bottom bracket types. Protective design - Provides protection to absorb impact forces from below and helps shield the chainring. Use scenarios - Scenario 1: Fitting on a modern trail bike with ISCG03/05 tabs to support a 32T-38T chainring, enabling secure chain retention on rough sections and drops. - Scenario 2: Upgrading an older frame with a 68/73mm width bottom bracket shell using the BB conversion adapter, enabling compatibility with Shimano BB50/BB51/BB70 or Sram GXP outer bearing systems. - Scenario 3: Reconfiguring for different rear structures or chainring sizes on bikes that require ISCG03/05 mounting plus a BB conversion adapter, while maintaining chainring protection during hard riding.