OneUp Components Top Chainguide, ISCG-05 V2 Black Chain Guides

- 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)