Park CT-4.3 Master Chain Tool


Specially designed to work with the tight tolerances and narrow profiles of 10- and 11-speed chains, but also works on all other derailleur chains, including the Shimano CN-9000. The CT-4.3 is a powerful, precise tool designed to quickly and accurately remove and install chain rivets. Without a doubt the most accurate chain tool Park ever built! Integrated Link Pocket ensures precise alignment. Replaceable, rotating pin. Perfectly contoured cushioned handles. Precisely machined investment cast body and components. Includes removable anvil to peen Campagnolo 11-speed chains.

Note: The CT-4.3 is NOT compatible with Wipperman chains.

Model Number
Item Code
Park CT-4.3 Master Chain Tool


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.


Backorder Policy

  • “Available for backorder” items typically ship from the Colorado Cyclist in 5-10 business days.
  • If an item is going to take longer than 2 weeks to ship from the Colorado Cyclist, we will reach out via email or phone with an estimated shipping time frame.
  • If an item is no longer available, we will reach out via email or phone to alert you that we are canceling the order.
  • Orders that include “available for backorder” items will not be charged until everything is in stock and ready to ship.
  • If you are purchasing both “in stock” & “available for backorder” items, please note that nothing will ship until we have all the items at the Colorado Cyclist facility. If you wish to have “in stock” items ship immediately, please place separate orders. All applicable shipping charges will apply.