Park Tool CC-4.2 Chain Checker Tool Water Packs 86% Polyester / 14% Spandex

86% Polyester / 14% Spandex 170 GSM fabric weight

Width: 69

Insulation Thermore® Classic 40gm

Memory- 64GB Storage

a gear-intensive weekend or a big adventure

Park Tool CC-4.2 Chain Checker Tool Water Packs 86% Polyester / 14% SpandexA 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