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.
Place an order of $100 or more,
and receive loyalty credits
on qualifying items.
Most regular and some sale items
earn you loyalty credits.
Please Note: Items purchased with
a coupon will not earn loyalty.
Look for the red message on
each item page.
Some items only show rewards
when they have been added to your cart.
Simply enter your loyalty
at the time of your next order.
Rewards are not transferrable,
or redeemable for cash or gift certificates.
Rewards will be adjusted on
returns to reflect earned value.
Please Note: Loyalty cannot be combined
with other promotional offers.