Park Tool Fourth Hand Cable Stretcher - with locking ratchet - BT-2
Park ToolFourth Hand Cable Stretcher - with locking ratchet - BT-2

The BT-2 4th-Hand Brake Tool is a ratcheting wrench that allows you to pull cable and hold it in place as you make brake and derailleur cable tension adjustments.

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  • Q & A

Stretch

  • Familiarity: I've used it several times

Stretches the cable and locks into position so you can use both hands to make any other adjustments necessary and tightening up the pinch bolts.

An absolute necessity? No ... but a really nice tool to have on hand.

Useful tool

    Great tool for anyone with multiple bikes trying to get the perfect tension on their cables.

    Good product

      This does actually help but certainly not a necessary tool.