Park Tool PS-1 Disc Brake Pad Spreader

I was using the widest flat screwdriver in my toolbox before to depress the pistons into their cylinders, and I can tell you it takes a lot of precision to depress a piston with a force applied to its exact centre, or otherwise the piston refuses to move. Park Tool is known for their bike service tools, and this piston spreader is so much easier to use. It's well worth is price, as spreading pistons is what you have to do every time when replacing thin and worn brake pads with the thick, new ones. You may even afford a luxury of carefully pushing the pistons out to clean their side surface, something I tried to avoid, as a simple screwdriver is a very unwieldy instrument for pushing the pistons back into cylinders. Get it, you'll love changing your brake pads with it! There are quite a few instruction videos on YouTube on the correct use of the tool, including some from Park Tools themselves. Note that the tool is specific to hydraulic brakes; you don't need it if your disk brakes are cable-operated, like, for example, a lower-grade Tiara disk brake and some other types. It's specifically designed for hydraulically operated brake pistons.

A must have tool for the home bike mechanic. I used mine to spread my calipers for new pads...maybe not what it is intended for, but it worked. It did not bend out of shape and it is very simple to use. decently priced for a Park tool named tool too.

good tool to have in the bike repair tool box if you have a disk breaks bicycle. when the break pad got stick together, nothing will do till you try this tool. work as described and very easy to prey open the pads and put the wheel back on. after all, who wants to stuck in the forage all day to fix breaks? let's ride!

Very useful tool for spreading my 4 cylinder brake cylinders for new brake pads. I had been using screwdrivers and wrenches before using this. While screwdrivers and wrenches work, this allows the brake cylinders to be spread even only.

Just good and dun it's job!

The Park Tool PS-1 Disc Brake Pad Spreader probably doesn't do anything a flat screwdriver or putty knife wouldn't do just as well. But the first time I removed my tire I made the mistake of hitting the brake, locking up the disc caliper. Being the gross amateur I am, I darn near damaged the brake trying to get the wheel back on. That could have been an expensive mistake. The nice thing about this tool is that it is designed to resemble a section of brake disc. That means you can adjust the caliper with the tool in place instead of the wheel. So it does a lot more than just pry apart two misbehaving brake pads. Proper brake adjustment is vital if you are going to spend any quality time on a bike, and the local bike shop is an expensive option to visit with any frequency for brake adjustments. Learning to do it yourself with this tool is a great option.

On my first tire change. On my first bike with disc brakes. Yes. Managed to freeze the front brake pads. And I had a pack of orange do-hickee spacer thangs! Smooth move. Have a well used flat head in the garage that doubles for 10 or so odd uses-everything but screwdrivering. Reluctantly talked myself out of it. Anyway. Fully recommend this tool. Couldn't have worked better or easier. Now that I bought one-probably never need it again. But a number of my friends are just as slow as me so might see some more use after all.

For some reason there are dozens of tools that claim to spread brake pads, and I'm betting most or all of them work. This is a wheel that has been re-invented many, many times. But this light, durable, one-piece spreader does the trick. It's very easy and logical to use. You just stick it between the brake pads and spread them apart. Very simple, and i love that it's just one device, not a combination of devices like those plastic wedges. Oh, and this will never break.

High quality and works perfectly. As it should for the high price. With Park Tool you really do get what you pay for (if you can afford it).

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Toujours avoir cet outil dans son sac car cela peut vite arriver de coller les plaquettes pendant le transport

Not a lot to get thrilled about here, but it works as intended and makes brake pad changes/servicing the brakes on a bike an absolute breeze. Decent quality, not flimsy and works exactly as you would expect it to. Worth the price of admission, particularly if you do all your own maintenance on your bike(s).

I bought the tool to separate the old pads so I can easily remove them. This tool will outlast me for sure.