Park Tool CC-4.2 Chain Checker Tool Cycling Shoe Gender_Womens Visible up to 200 meters

Visible up to 200 meters (that's 44 car lengths)

Engineering plastic bracket body

Its main frame is constructed from durable machine aluminum and its industrial design works great and looks great

Traditional plug tools were originally developed for car tires

Park Tool CC-4.2 Chain Checker Tool Cycling Shoe Gender_Womens Visible up to 200 metersA worn bicycle chain can cause poor shifting and expensive drivetrain damage. The Park Tool CC 4. 2 Chain Checker is a drop in gauge that measures chain wear accurately. It contacts the chain in three places, eliminating guesswork. Compatible with 5 to 13 speed and single speed chains, it indicates wear at 0. 5%, 0. 75%, and 1. 0%, matching manufacturer replacement recommendations. Measures bicycle chain wear accurately, preventing expensive