B Gap Adjustment Tool for SRAM XPLR/AXS Eagle Chain Gauge, Rear Derailleur Chain Gap Tool for SRAM MTB [White-Eagle 50/52t Cassettes,12 Speed], for SRAM Road [Red-XPLR Force Rival Red eTap AXS 26-44]
SRAM Eagle B-Gap Adjustment Hack! | MTB-MAG.COM
B-Gap Tension Screw Adjustment: What It Is & Specs For Every Derailleur ( SRAM, Shimano) | The Pro's Closet