Birzman is back with another round of cleverly designed tools. If you’ve ever worked on hydraulic disc brakes, at some point, you’ve had to reset the pistons in the caliper. In the past, that has required specially shaped ‘spatulas’ that you wedge between the brake pads and lever the two sides apart. While effective, those tools require you to remove the wheel and brake rotor, and can lead to damage to the brake pads themselves. The Birzman Disc Brake Piston Pusher changes that.

Birzman dual Disc Brake Piston Pusher overview

Instead of removing the wheel (on top loading brake calipers), with the Birzman tool, you remove the brake pads. That provides enough room between the pistons and the rotor to slip the tool into place.

Birzman dual Disc Brake Piston Pusher operation

Once in place, instead of prying the two sides apart which can apply uneven pressure, the Birzman tool expands evenly with the threading motion of the handle. This way, you get smooth even pressure on both sides of the caliper and without damage to the brake pad since it’s been removed.

The tool is compatible with bottom loading calipers as well, though it might require removal of the caliper from the bike.

We haven’t tried it ourselves, but it seems like it could work well and be a better solution to resetting your brake’s pistons. Available now, the Disc Brake Piston Pusher retails for $59.99.

Tubeless Tools

Birzman tubeless tire lever jack

Birzman also has a few new tools to make life easier with tubeless tires. If you struggle to get tubeless tires on or off your rims, their new Wedge Wedge II is worth a look. In addition to acting as a large tire lever with better leverage, grip, and a thin & curved tip to easily slide under the bead, the lever also has a tire jack built right in.

Birzman tubeless tire lever jack operation

If you’ve never used a tire bead jack, it’s essentially a lever that rests on the opposite side of the rim or tire, and helps lever the bead onto the rim. In terms of proper tire installation, these are generally viewed as a last resort, but if you find yourself struggling on the side of the road, it could certainly come in handy.

Birzman tubeless tire lever The Wedge Wedge II also includes one of their Tubeless Tire Levers which can also be purchased separately in a set of three. These smaller levers still have a thin tip that is curved to better fit under the tire bead, but they also include a rim clip and a spoke hook to hold them in place when dealing with stubborn tires.

The Wedge Wedge II sells for $12.99 with the large lever and smaller tubeless lever, and three tubeless levers sell for $8.

Birzman tubeless tire kit

Finally, Birzman offers this CO2 cartridge that is not actually a CO2 cartridge.

Birzman tubeless tire repair kit

Birzman tubeless tire repair kit

Instead, it’s a tubeless repair kit hidden inside a container shaped to emulate a CO2 cartridge, complete with the same threads. Why would you want that?

Birzman tubeless tire repair kit mounting

Because then you can store it just like you would any other CO2 cartridge. Whether bundled together with a spare tube, in a CO2 frame mount, or next to a handpump frame mount, there are a lot of ways to store the kit. It also serves as a holder for your CO2 inflator and guarantees you won’t accidentally puncture your actual CO2 cartridge before you’re ready to use it. The Tubeless Repair kit included 10 tire plug strips, and is priced at $18.

birzman.com

11 COMMENTS

  1. Nice looking tools.
    For me a closed 12mm wrench works better than the Park PP1.2 tool to re seat disk brake pistons.
    (but you still need to remove both pads..)

  2. Tire jacks are really helpful, and I own one by Kool Stop and Birzman. The Kool Stop version is clunky but works. The Birzman looks a lot sleeker, but the end of the tool opposite the jack broke off the first time I (gently) used it to pry a tire bead onto a rim. Never even got to the part where I needed the jack.

  3. I’ve heard of bead jacks before, but I’ve never seen how they work before those illustrations. Also, I think those are “last resorts”, not “last results”.

    And bacon.. don’t Ride NW Arkansas without those unless you like walking your bike.

  4. It looks like a clever tool, but why would you want to push the pistons back in without removing the wheel? Surely before you press the pistons back in you want to address the source of the problem, which is most likely dirty or dry pistons? How are you going to clean the piston and re-lube the seal with the disc in place without getting dot fluid or hydraulic oil on the disc?

    • If you need to replace pads mid-ride (hence not wanting to remove the wheel) you will have to push the pistons back in to get clearance between the new thick pads and the rotor. Sticky pistons as you describe often require fixing one piston and for sure, you’d only want to do this at home / in the workshop.

      • Who in their right mind plans ahead to replace pads on the trail? Do you really need to eke out those last few stops so much that it’s worth not only carrying new pads, but also buying and carrying a special tool?
        I’ve replaced pads trailside once when I was younger and poorer and it was a foolish thing to do. Carried the spare pads around for over a month until one side was bare metal and the pad spring got munched in the disc with a horrible screech. Old Avid brakes, so there was no replacing them without pulling the wheel out. I dropped the wheel out and flipped the bike over in the deepening dusk, and as I rummaged in my pack with one hand, my other hand absent-mindedly squeezed the brake lever…and one of the pistons popped right out. DOT fluid all over my hands, all over the disc, and in my pack pocket, and no rear brake for the rest of the ride. Of course it was at the start of 300 vertical metres of old-school tech single track descent, with early 2000s lights. It was a slow descent, my front brake completely faded a couple of times and my bar light battery went flat, but at least I didn’t crash hard too many times, and the piston seal was OK to re-use.

  5. I’m on Dylan’s teams. It is faster, better, and gives you piston cleaning access to just remove the wheel… I don’t understand that tool. At all. Plastic tire levers work well too, Pedros, specifically.

    Kool-Stop tire bead jack tool beats everyone. GP5000 on a Bontrager rim? No problem! Excited to see another functional tire bead tool though

  6. This is exactly the wrong way to push pistons, and this will damage your master cylinder…

    On shimano Caliper if you push the pistons too fast or too strong at the same type the pressure in the hose is too much and you damage the inner master cylinder seal. Becareful

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