To alleviate poor shifting and uneven train wear, most manufacturers recommend chain replacement at or before 1-percent stretch. Now you can quickly and accurately determine the wear and stretch of any chain with the Park Tool Chain Checker. Simply insert the Chain Checker's pins into two links, press the swing arm gauge tight, and then check the gauge window for an accurate reading. Reads wear from 0.25% to 1%. 56 g.
One coupon per order
Discount taken off MSRP
In stock items only
Coupons can not be combined with promotional gift certificates, however, purchased gift certificates may be used with the coupons. If you would like to use your coupon with a purchased gift certificate, please leave the gift certificate information in the comments section at checkout, and they will be applied during processing on the backend.
Some items are restricted
Groupsets, hand built wheels, special orders & labor costs are excluded from the coupon.
Additional exclusions may apply.