CC-3.2 Chain Wear Indicator stanley Tight knit lofted thermal fleece

Tight knit lofted thermal fleece provides stowable warmth

Parent-Friendly Traction: Molded traction bars take the place of steel to add safety without compromising essential traction

As a particularly practical feature

Designed for everyday comfort and performance

CC-3.2 Chain Wear Indicator stanley Tight knit lofted thermal fleeceA worn bicycle chain can cause poor shifting and in time can even cause excessive wear to the derailleur and rear cogs, causing a much more expensive problem. That's why bike component manufacturers recommend chain replacement at regular wear intervals. The Park Tool CC 3. 2 is a go no go gauge designed to accurately indicate when a chain reaches 0. 5% and 0. 75% wear (or "stretch"), the points at which most chain manufacturers suggest replacement.