Park Tool CT-3.3 Chain Breaker

Professional Precision.

The Park Tool CT-3.3 features an adjustable locating shelf that allows it to work on any width chain. By simply turning the dial, you can perfectly centre the chain for a clean, straight push every time. This prevents the "bent pin" syndrome that often plagues cheaper, non-adjustable tools. Crafted from investment-cast steel and featuring a replaceable driving pin, it is a tool built to be handed down to the next generation of mechanics.

Why the CT-3.3 is the Industry Standard:

• Universal Speed Compatibility: Works with everything from single-speed to 13Speed road and mountain bike chains. It is also fully compatible with Sram Flattop and Eagle Transmission (T-Type) chains.

• Adjustable Locating Shelf: The sliding "staircase" shelf ensures the chain is supported perfectly regardless of its width. This is critical for the delicate pins on modern 12 and 13Speed chains.

• Replaceable Driving Pin: Even the best tools eventually wear down. The CT-3.3 features a replaceable pin (Part #CTP), ensuring that a bent tip doesn't mean you have to buy a whole new tool.

• Investment Cast Steel Body: The heavy-duty body provides a rigid, flex-free platform. This rigidity ensures that 100% of your hand force is directed into the pin, making chain removal feel effortless.

• Comfortable T-Handle: The large, contoured handle provides excellent leverage, allowing you to pop even the most stubborn or rusted pins without straining your hands.

• Fine Threading: The high-precision threads on the driver allow for a slow, controlled push, giving you a better "feel" for the pin as it moves through the links.

Technical Specifications:

• Model: CT-3.3

• Compatibility: 5Speed to 13Speed (including Sram Flattop/Eagle)

• Body Material: Investment Cast Steel

• Adjustability: Sliding locating shelf

• Replaceable Parts: CTP Driving Pin

• Note: Not compatible with Campagnolo 11/12/13Speed peening requirements (requires CT-4.3 or CT-6.3).

The Alegro Perspective: In our shop, every workstation has a CT-3.3. It’s the "Goldilocks" of chain tools. Heavy enough to feel substantial, but precise enough for the most expensive 12Speed chains. If you are building up a bike with a Sram RED XPLR E1 or an Ultegra Di2 groupset, don't risk a cheap tool on a $100 chain. The CT-3.3 is an investment that pays for itself in avoided frustration.

Master Leverage. Universal Fit. Build your Drivetrain with Park Tool.