Park Tool Master Chain Tool – CT-4.3

Park Tool Master Chain Tool – CT-4.3

  • Material: steel
  • Compatibility: 5- to 11-speed chains, Shimano, SRAM, Campagnolo
  • Recommended Use: chain service
  • Manufacturer Warranty: lifetime

Chains are the lifeblood of your drivetrain. Without one, you have nothing more than a glorified hobby horse. And when they break, it’s typically due to sloppy installation. When a professional mechanic installs a chain, it’s with a precision unit like this Park Tool CT 4. 3 Master Chain Tool for a reason. Field service and home mechanic tools work great in a pinch, but if you want to avoid the pinch altogether, the only way to go is professional grade. Aside from the obviously ergonomic handle, the CT 4. 3 works with the tight tolerances of modern, narrow chains due to its investment-cast, precisely machined body. This ensures that the tool’s pin is guided straight, and that it doesn’t wander while installing the chain pin. Otherwise, wallowing of the bore, binding inside, or bending of the plates will happen. Additionally, the pin is easily replaced if it happens to bend. Another defining feature of the Master Chain Tool is an integrated link pocket for precise alignment during use. The Park Tool Master CT-4. 3 Chain Tool is compatible with Campagnolo chains, and includes an anvil to peen their 11-speed chains. It will work with all 5- through 11-speed chains from Shimano and SRAM, as well. Please note that the only chain that it’s not compatible with is Wipperman.

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3 Responses to “Park Tool Master Chain Tool – CT-4.3”

  1. mauidoug
    March 21, 2016 at 9:27 pm #
    7 of 7 people found the following review helpful
    5.0 out of 5 stars
    Well worth the money, October 5, 2013
    By 
    mauidoug (Pukalani, HI USA) –

    Verified Purchase(What’s this?)
    It’s expensive, but it works like a charm. I just got it and tested it on some links that I removed from a SRAM chain. My old Park tool was very difficult to turn to push out the pins. I would have to put a vise-grip on the handle to turn the screw. It would get the pin out with great difficulty, but would bend the tool handle and mangle the removed link. I dreaded using that tool. This tool is a completely different experience. It’s easy to turn the handle to push the chain pin out and nothing gets bent. Very fun to use and an excellent design; viewing ports to see how much of the pin has been pushed out and the base that hold the chain is shaped like a chain link to hold the chain precisely where it should be located. I love this tool and Park tools in general.

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  2. Joann
    March 21, 2016 at 9:44 pm #
    6 of 6 people found the following review helpful
    5.0 out of 5 stars
    Worth every penny!, November 16, 2014
    By 
    Joann

    Verified Purchase(What’s this?)
    Let me start off by saying that I’m a cheapskate. I shop around to save a few bucks. It was anathema to me to consider shelling out $55 when I could get a tool that performs the same function for less than $15. After my last chain change and agonizing with the cheapo $15 tool for 15+ minutes, I finally broke down and bought this tool.

    IT WAS WORTH IT. WORTH EVERY PENNY.

    The less expensive Park Tool have a crummy little pin that easily breaks off. The competitor brands don’t line up perfectly and end up bending the link or have extremely hard-to-turn handles. Neither holds the chain securely to ensure that the pin pushes through cleanly. However, the Master Chain Tool holds the chain securely, keeping the chain in place while the link pin is pushed through. Also, the big, oversized handle is easy to turn and hold.

    My only regret is that I didn’t buy it sooner!

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  3. Jason A. Ales
    March 21, 2016 at 10:07 pm #
    3 of 3 people found the following review helpful
    4.0 out of 5 stars
    Park Tool Professional Chain Tool with Peening Anvil, May 5, 2014
    By 
    Jason A. Ales (Chicago) –
    (REAL NAME)
      

    Verified Purchase(What’s this?)
    I certainly love the construction of Park Tools products as usual, but in this case my only complaint is that it states it can be used on 5,6,7,8,9,10, 11 speed chains. Well the first thing I did was try to brake and replace an old 5 speed chain on a vintage bike for a customer and guess what, the 5,6 speed chains would not fit in the guide the tool is built with as they are too fat! On the other hand I also did a 9,10,and 11 speed chain the same day and found it a fantastic tool for all modern uses, especially since the pin for pressing the rivets out is designed with incredible easy replacement once worn, and this will most likely be the last chain tool I buy for a while!

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