Top Chainguide, ISCG-05 V2

- Eliminate dropped chains \n- Almost every EWS pro runs both a chain guide and narrow wide chainring\n- Back plate cut from 8mm thick 7075-T6 aluminum\n- Boost and oval chainring compatible\n- Tool-less upper guide flip\n- 7.5mm of chainline adjustment \n- Compatibility with chainrings from 26-38t \n- Single tool install without removing your cranks \n- Top guides are available in 6 colors (sold separately)\n- Third party online sales are strictly prohibited by manufacturer