Don't let your worn-out chain ruin the rest of your drivetrain. This handy tool is quick and easy to use, and can save you some serious headaches. This "go-no go" chain gauge is designed to let you know when your chain reaches .5% and .75% wear, which is when most chain manufacturers recommend replacement.
Item No. » PT-CC32
SAVE 20% = $2.141 or more: $8.55