e*thirteen LG1+ Chain Guide 28-38t Bash ISCG-05, Black Includes the enhanced Taco direct mount bashguard Easily change chains and chainrings w/o removing wearplates ISCG 05 kit includes ISCG adapter plate for use on frames with NO ISCG tabs Wearplates have chainring size indicators for simple adjustment e*thirteen by The Hive Chain Retention Systems