Park Tool CC-3.2 Chain Wear Indicator D4 Vectran Breaker Protection

Vectran Breaker Protection

Compatibility: Eagle™

Significant watt savings when running larger tires at lower pressure

1x 25mm mounting strap with magnetic hook

Re-apply 1 drop per roller every 600-800 miles or after every wet/rainy ride

Park Tool CC-3.2 Chain Wear Indicator D4 Vectran Breaker ProtectionA 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.