Material: This rear derailleur adjuster is made of plastic, which is durable and not easily damaged, and can be used for a long time.
Compatibility: This Chain Gaps Adjustment Gauge Tool is very compatible with SRAM Eagle SX/NX/GX 12.
Usage: This is an ideal repair tool part for bicycles. You can change the speed of the chain to the maximum gear, Install the chain gap adjustment measuring ruler on the upper pulley.
Note: Please check whether the highest tooth of the largest gear of the flywheel is aligned with the groove contour on the measuring ruler.
Feature: Chain gap is small and sturdy, can be used as a travel kit, and can solve most bicycle problems. it is simply the perfect tool