Park Tool CC-3.2 Chain Wear Indicator 37.5-65 Top-of-the-line front derailleur with innovative

Top-of-the-line front derailleur with innovative Yaw design and judicious use of lightweight materials

ultra low profile center tread

RapidFire Plus technology is suited to quick shifting giving riders the ability to downshift three gears in one stroke Rear Der/Shifter Compatibility Shimano DynaSys11

Zero Loss Engagement for fast shifting

Park Tool CC-3.2 Chain Wear Indicator 37.5-65 Top-of-the-line front derailleur with innovativePark Tool CC 3. 2 Chain Wear Indicator. A 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. Thats 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