Park Tool CC-4.2 Chain Checker Tool Taillights 7g per chew

7g per chew

The SRAM RED AXS E1 Front Derailleur is the flagship wireless electronic front derailleur for SRAM's E1 generation RED AXS road drivetrain

DOT fluid sold separately

the Orange Pista delivers

This pairing ensures threads stay perfectly aligned during installation

Park Tool CC-4.2 Chain Checker Tool Taillights 7g per chewWhy is the Park Tool CC 4. 2 a better chain checker than a ruler? The Park Tool CC 4. 2 Chain Checker Tool is a laser cut drop in gauge that measures chain wear at three calibrated points simultaneously, giving you a fast, definitive reading on whether your chain needs to be replaced. Compatible with 5 through 13 speed derailleur chains and single speed chains, it reads wear at 0. 5%, 0. 75%, and 1. 0% stretch, which aligns with the replacement