CABLE STRETCHER PARK TOOL BT-2

The Park Tool BT-2 is the "fourth hand" cable stretcher designed for installing and adjusting derailleur and brake cables. One hand grips the cable and pulls it taut, while the other stays free to tighten the pinch bolt.

The heart of the BT-2 cable stretcher is its thumb-operated ratcheting lock: once the desired tension is reached, the ratchet holds the cable in place without you having to keep squeezing the handles. The body is made of heat-treated, chrome-plated steel, while the cushioned grips ensure a comfortable hold even when working on many bikes in a row. It is a tool designed for the professional workshop but equally suited to the home mechanic.

How to use the BT-2 cable stretcher

• Insert the free end of the cable between the jaws, beyond the brake or derailleur pinch bolt.
• Squeeze the handles with one hand to pull the cable to the correct tension.
• The ratcheting lock holds the tension: no need to keep the handles squeezed.
• With your free hand tighten the pinch bolt, then release the ratchet and remove the tool.
• Repeat to fine-tune the adjustment of cable-operated derailleurs and brakes.

Why choose Park Tool BT-2

• "Fourth hand" function: cable tension and pinch bolt tightening handled by one person.
• Thumb-operated ratcheting lock that holds the set tension.
• Heat-treated, chrome-plated steel, built for daily workshop use.
• Cushioned grips for comfortable work.
• Suitable for professional mechanics, shops and enthusiasts who service their own bike at home.

Fitting a new cable, taking up slack at a brake lever or re-tuning a derailleur becomes a precise, repeatable job: the tension stays exactly where you set it while you tighten the pinch bolt. The Park Tool BT-2 cable stretcher is the extra hand that makes every cable adjustment fast and accurate.