Quickly and accurately determine the wear and elongation of any chain.
1 Year Free Tunes
with the purchase of new bike
Demo Before You Buy
Largest demo fleet in Boise
Compatible with all bicycle chains For modern 9 and 10 speed chains, replace chain at or just before the 0.75% readings
For 11 speed chains, replace at or just before the 0.5% reading
Insert the Chain Checker's pins into two links, press the swing arm gauge tight, and check the gauge window for an accurate reading