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

- Eliminate dropped chains \n - Almost every EWS pro runs both a chain guide and narrow wide chainring \n - Combines upper chain retention with lower chainring bash protection \n - Reinforced nylon bash guard and a back plate cut from 8mm thick 7075-T6 aluminum \n - Boost and oval chainring compatible \n - Tool-less upper guide flip \n - 5.5mm of chainline adjustment \n - Single tool install without removing your cranks \n - Includes 3 different sizes of bash plate for compatibility with chainrings from 28-36t \n - Top guides are available in 6 colors (sold separately) \n - 90g (28-30t), 105g (32-34t), 110g (36t)