Parktool- Chain wear indicator MET Rear Derailleur- Shimano Altus RD-M200018

Rear Derailleur- Shimano Altus RD-M200018 Speed

Sold by pair

Extra Length Seatpost for Adjustability

Specially formulated for Oakley eyewear

Industrial strength hook and loop closure

Parktool- Chain wear indicator MET Rear Derailleur- Shimano Altus RD-M200018A worn chain shifts poorly and wears sprockets at an accelerated rate. The CC 3. 2 is a go no go gauge designed to accurately indicate when a chain reaches . 5% and . 75% stretch, the points at which most chain manufacturers suggest replacement. For 9 and 10 speed chains, replace the chain just as the gauge fits the 0. 75% side fits flat into the chain. For 11 and 12 speed chains, replace the 0. 5% side fits. The CC 3. 2 is long, accurate, and