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

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