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Park Tool CT-4.3 Master Chain Tool

The Park CT-4.3 Master Chain Tool with Peening Anvil is specially designed to work with the tight tolerances and narrow profiles of 10- and 11-speed chains like the Shimano CN-9000, but also works on almost all other chains. There is even a removable anvil to peen Campagnolo 11-speed chains too. 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 has ever built and a shop favorite.


  • 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

The CT-4.3 is not compatible with Wipperman chains

Sale Price
Reg Price $66.95
Item is in stock


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Average Rating:


Posted on 2/5/2016

I needed a tool for my Campy chains and I didnt want the mystical Campagnolo chain tools. With the Park I can do any chain except Wipperman and I can peen the Campy chain pin. I have a tendency to bend pins so Im happy these pins are replaceable.

Pros Solid tool. Less expensive than Campagnolo

Cons Need another chain tool for my 10spd Wipperman