SHIMANO TL-CN42 CHAIN WEAR INDICATOR new_product Retention system provides a secure

Retention system provides a secure and snug fit

ZS42/30 (1⅛") bearing41/30

Rear Derailleur: Shimano 105 Di2 FD-R7150

Available with replaceable stainless  bearings for less friction and greater durability

SHIMANO TL-CN42 CHAIN WEAR INDICATOR new_product Retention system provides a secureThe Shimano TL CN42 chain wear indicator delivers precision measurement with its unique 3 pin design, eliminating gaps between roller and pin for accurate readings. Crafted from heat treated stainless steel with laser cut precision, this tool quickly identifies chain wear before it damages sprockets and chainrings. Simply guide the rollers in alignment to check wear effortlessly. Essential maintenance for preserving shifting performance and extending