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Park Tool BT-2 4th Hand Brake with Locking Ratchet

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$49.95

$ 21 .99 $21.99

In Stock

About this item

  • Steel
  • Commonly referred to as a “4th Hand”, the Park Tool Cable Stretcher pulls cables tight.
  • It features one-hand operation with a thumb lock to hold the cable tight while your hand is removed to tighten pull-up bolts and nuts.
  • Made from heat treated steel, chrome plated, and featuring cushion grips for comfort.



Product Description

Detail of Park Tool BT-2

Park Tool BT-2 Fourth Hand Bicycle Cable Puller

Commonly referred to as a “fourth hand," the Park Tool BT-2 Cable Stretcher is a great help when installing and adjusting bicycle derailleur and brake cables. With one hand, the BT-2 grabs and holds the cable in place and pulls the cable taut, allowing you to set the perfect amount of tension and secure the pinch bolt. The convenient ratcheting thumb lock holds the cable tension in place. Made from chrome plated heat treated steel, the BT-2 is built for a lifetime of use, with cushion grips for comfort. A must-have for any shop, home, or professional.

TRUSTED SINCE 1963

Since our origins in the back of a bike shop in 1963, it has been Park Tool's sole mission to design and manufacture high-quality tools that empower mechanics and riders of all skill levels to service their bicycles. Each one of our 500+ tools are a product of our decades of experience and expertise in the industry, in the shop and on the trail.


Jack Ortega
Reviewed in the United States on March 18, 2025
Easy to use and install brake cabling.Premium build quality.
Conor Hildebrandt
Reviewed in Canada on January 11, 2025
Pricey but worth every penny to not have to struggle with pliers and cables anymore. Makes my life so much simpler, works like a charm, would highly recommend to anyone
fabio
Reviewed in Italy on November 9, 2024
ottimo,qualità parktool
marcos
Reviewed in Spain on September 8, 2022
Bom produto e muito eficaz a tensionar os cabos de embraiagem e mudanças da minha vespa 50s
Rolidnot
Reviewed in the United States on August 3, 2021
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EdGordonJr
Reviewed in the United States on March 9, 2021
These are well made tools... Park Tools.This particular tool, is certainly pricey, compared to other well made brands, as I found out later AFTER buying it, but bought because of the reputation of the company!In most cases, this particular tool, was considerably higher priced than their competitors! By a lot!I tried adjusting Día-Compe (1982-style) center-pull, single pivot caliper brakes... was difficult, so much so, even with this tool, that I finally got smart!I replaced the brakes with Ultegra 8000-series, center-pull, dual pivot, caliper brakes... with this tool... was a breeze to install!!!!The brakes work GREAT too!Handy tool, just a little awkward to negotiate at first... but compared to not using them!?Night/Day!I think Park Tool should reconsider, dropping the price... $10?
JJ2018
Reviewed in the United States on September 5, 2020
This is a huge time saver. It is dead simple to use and I consider it to be one of the most essential pieces in my tool kit. Trying to adjust cable tension with out it is a non-starter for me. If you are enthusiastic about doing your own bicycle maintenance, this tool will pay for itself the first time you use it. It is a joy to use and will not pinch your cable and has a catch mechanism to make micro-adjustments easier.
Customer
Reviewed in the United States on May 31, 2020
A little pricey but after reading reviews of other 4th hand tools, I ended up dishing out the money for this one.Great tool for brake adjustments on our four bikes at the house. Definitely a maintenance must especially when you have two kids that like steep trails on their BMX and mountain bikes.Even the neighbor asked to borrow it to adjust his bikes.Applications for use can be found on google when adjusting brake lines.Any questions, please feel free.
Tampa Tim
Reviewed in the United States on May 16, 2019
I have considered buying this tool many times, but have always balked at the price. After using it to run new brake and shift cables on a bike with cantilever brakes, I will say it is definitely worth the price. I was able adjust everything perfectly in minutes instead of adjusting and testing over and over like I’ve done in the past. This tool also works great to pull cable ties right. I used it to install a wired bike computer and got very clean, professional looking results. If you’re on the fence, buy it. You’ll thank yourself every time you need to do any cable work.
Kenju92
Reviewed in France on December 16, 2018
Outil pratique pour les interventions sur les câbles vélos. De bonne qualité je ne suis pas déçu par cette marque de bonne réputation pour un travail de qualité et rapide.
Emi
Reviewed in the United Kingdom on January 3, 2018
Very good tool but doesn't make sense to pay this price when the drapper one (about £10, also bought) does the same job (handle is less comfy, that's it)
CanyonChasers
Reviewed in the United States on September 17, 2011
This is a fantastic tool and critical for anybody who maintains their own bicycle. Setting cable tension on the brakes was so easy, than you can get the brakes set perfectly on the first try. Setting cable tension on the derailleurs takes a little bit more finesse because the tool works so well, its really easy to set the tension far too stiff. Once you figure out how much tension is needed, the tool allows you to set the derailleurs in a matter of minutes with a lot less fuss and frustration. This is a must for anybody who wants to work on their own bicycle.
W. Boykin
Reviewed in the United States on January 7, 2010
This is a common tool offered by several companies all of which do the same basic thing. This tool does a great job with that basic thing. What's different between this & some of the others is a locking ratchet. I've read previously that the lock is something between unnecessary & inconvenient. It may be unnecessary, but it is a convenience that makes it possible to pull to the right tension & then let go, relax & either free up your other hand &/or not worry about over tensioning the cable while your focusing on securing it. I use the tool on my brakes as well as derailleurs, it is on the latter where having your other hand is helpful & it is also important not to accidentally over tighten the cable. Rarely has the lock engaged when I didn't want it to, it hasn't been a big deal. If, however, you are the kind of person who yells at your garden hose when it gets stuck on a corner, the lock could be similarly irritating.