2013 Ashima PCB pistonless carbon fiber hydraulic road bike rim brake

As usual, Ashima didn’t disappoint. They had a range of new products and concepts on display at both Eurobike and Interbike, including an updated version of their hydraulic PCB pistonless road bike rim brake.

Originally shown in 2010, now we’re at least seeing where the hydraulic lines insert. The arch is carbon fiber, and the brake fluid pumps directly into the space behind the pad, using a flexible “pancake” membrane to push the pads out and retract them without a traditional piston and seals. No word on production plans. While it’s aimed at the aftermarket, Gregory from Freshbikes says they told him there were some undisclosed OEM parties coming by their Interbike booth for “productive talks.”

2013 Ashima ultra small bike mini multi tool

This guy might just take the cake for smallest multitool ever and still include a functional range of Allen keys, two screwdrivers and a Torx wrench. Also note the small spoke wrenches on the sides.

2013 Ashima best brake cable noodle ever

Blurry, yes, but still one of those “why didn’t I think of that” ideas that seems so obvious. By running housing all the way down, you avoid the inevitable drag associated with cable noodles. Brilliant.

2013 Ashima PCB Pancake pistonless hydraulic disc brake for mountain bikes

The PCB brakes, which we reviewed here, get a new alloy master cylinder with a top mounted cap and a Vitol diaphragm. The Vitol is a firm plastic-looking material that replaces the soft rubber from the originals. This gives the brakes a better, much firmer feel since they’re a pistonless design.

The calipers will get a redesign soon, too, to make them a little stronger. Weight will go up a bit, but performance should get better according to their reps.

2013 Ashima Flo-Tor floating bicycle disc brake rotor

The Flo-Tor is their latest brake rotor and is a true floating design. There’s 0.3mm float between the rotor and the carrier, and they’re held together with a stainless/aluminum bolt and nut combo. The 160mm is 75g, all popular sizes will be available.

2013 Ashima Team CarB carbon fiber rim brake pad

Their PCaC carbon rim brake pad gets a redesign with a larger surface area to help take more heat from the rim surface.

Big thanks to Gregory at Freshbikes for the assist on coverage, top three pics are his.


  1. Floating rotors are the way to go. Eliminates imperfections in the rotor causing pad rub. Because it can simply move its centerline. Good move.

  2. Hey, Ashima, 1998 called, they’d like to buy the patent for your v-brake noodle. Hey, that wasn’t nice. Sorry. How about “Ashima: your solution for improving outdated equipment”

    Ok, depending on how well it works, seems like that road rim brake should blow that Magura monstrosity out of the water.

  3. The only problem with Ashima full floating rotors is that they will overheat very quick. Such design like they showed separates carrier from braking surface. Same problem is in sports bikes with the same design of the rivets. Heat does not have a way to go to carrier.

    Different approach has absoluteBlack with their rotors, where the joint is designed in the way to allow heat to transfer to the carrier, as there is a very big connection between these two parts – making rotors cooler.

    See this topic – it explains why ashima will not work good.


What do you think?