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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.
raj from chicago
Reviewed in the United States on February 5, 2025
I love this tool. It is made specifically for caliper brakes found on cruisers, BMX Bikes and many department store bicycles. It makes adjusting the spring and angle on the caliper a breeze. I recommend this for anyone who thinks they might work on this type of bike.
shannon
Reviewed in the United States on January 11, 2024
This is so dang helpful when adjusting the breaks on my bikes for work. It is very efficient. Don't struggle with the wrong tool, get this one. At that price? For this level of convenience?.Can't beat it.
Nastil974
Reviewed in the United States on August 1, 2023
A+
Christina Munson
Reviewed in the United States on June 4, 2023
Use it at work to help with building bikes and doing the brakes.
John Gtz
Reviewed in the United States on June 26, 2023
This tool is one that I had wanted to get for a while. I had two separate tools with one of the ends on each of them. So now I saved space on my tool wall and put the other tools in my tool box.
Dennis Smith
Reviewed in the United Kingdom on January 1, 2020
Vital tool for bikes with side pull calliper brakes . No other tool will reach into the small space when fitting , servicing and centreing brakes .
nowwatchme
Reviewed in the United States on September 22, 2019
This was one of those tools that seems like a good idea, but why bother when you can get buy with two regular wrenches. It was cheap so I decided to get one. It was worth every penny. Centering breaks is so much easier with this thing.
glen forbes
Reviewed in Canada on June 2, 2017
The tool is Dam spot on .The adjusting the caliper brakes is soo ooh Much easier.
Jesús
Reviewed in Spain on December 30, 2016
Facilita las cosas al ajustar frenos de herradura. Como todo lo de PK, tiene muy buena calidad y se ve resistente. Esperemos que así sea, porque el precio en realidad a pagar por algo que no está ni engomado, ni nada es algo alto.
Enrique L.
Reviewed in the United States on October 28, 2015
Used this to center the brakes on my 1974 Schwinn with Weinmann side pull calipers after shearing the pivot bolt with combination wrenches. I have to say, this tool is great. Took me one minute to center the brakes; I just grabbed the spring behind the caliper arms with the "hooks" on the tool and pushed while I loosened the pivot bolt with a combination wrench. Highly recommended tool.
Raleighphile
Reviewed in the United States on May 8, 2012
This tool makes centering and adjusting many type of brakes very simple and easy.But on some brakes it just doesn't fit in behind them to grip the spring loops as there isn't enough room between the brake bridge/fork crown and the caliper. In such cases the only way to really do it is to take big screwdriver and place it on the brake arm and using a rubber mallet GENTLY tap the side you want to move down (and over toward the rim.) It's not as slick as using this tool but it does work. You can use this method for any brake but the screwdriver or other tool you are using to tap the brake can put a mark on or scratch an alloy brake arm.The thin offset wrench part is designed to get down onto the mounting bolt itself and grip wrench flats (if it has them) by where the spring mounts and turn the entire bolts. Sometimes even a thin offset wrench can't get down there very well or there are no wrench flats on some older bikes to grip -that part of the bolt is round without flats.The other side of the tool is designed to grip the loops of the spring itself and tweak the spring or even pivot the entire caliper slightly on the mounting bolt.Some mounting bolts have serrations on them to keep them from rotating, and can only be crudely adjusted by 15-20-degree intervals and will not allow the brake to sit between these detents. In these situations you will need to actually bend the spring(s) itself to adjust the tension it is putting on the arms. In these cases the screwdriver method is much more difficult and may damage the spring. This tool makes bending and re-tensioning the sides of the spring itself easy (and NOT a snap -ha!)For an occasional home mechanic this tool may not be worth it unless you know it fits your bike and you need it often. But for someone who works on bikes more often it's a necessary tool to have in your kit. Bopping on a customer's brakes with a screwdriver as a matter of course is not good practice -sometimes it is the only way, but when this tool works it's a better way.
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