Park Tool CC-3.2 Chain Wear Indicator SOFTGOODS The key fabric outer layer

The key fabric outer layer is breathable

*If you wish to use other configuration it will also work

M-Caddy Bag

Whether racing or riding

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Park Tool CC-3.2 Chain Wear Indicator SOFTGOODS The key fabric outer layerA 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.