Up for sale are some brand new, never used SRAM Eagle 50/52 Chain Gap Adjustment Gauges For B Tension Adjustment.

Uses this tool to properly set up your b tension gap for Sram Eagle 50 tooth and 52 tooth cassettes. It is impossible to adjust the rear derailleur without this tool.

Does not include original packaging.

Combined shipping is welcome. Please contact me for a quote.

Buy here and save a ton - these sell for $6 at the major online retailers.