Cycle innovation is moving faster than ever with amazing new products hitting the market everyday. We are seeing great improvements in tyres, wheel strength, and overall lightness in our bikes, and technology is leaping forward every year. Currently on Kickstarter is an interesting bike-specific project looking for financiers, that aims not to reinvent the wheel, but almost, taking on the well established disc brake design. A 28-year-old Australian, Allan Crisp, wants to revolutionize mountain bike disc brakes with his all new disc brake caliper.

Die Crisp Brake als CAD Zeichnung.
The Crisp Brake as a CAD drawing.

If you believe the words of the young Australian, his system is not only light and reliable, but should also be heat stable because of the open design.

This is achieved by the open design, facilitated by the single, large piston above the brake. Similar to a pair of scissors both brake pads are pressed against the disc at the same time

Hier ist das Funktionsprinzip der Bremse gut zu erkennen.
Here the functional principle of the brake is easy to see.

In this promotional video the functioning of the brake is outlined:

Allan Crisp has some bold claims on Kickstarter concerning the advantages of his system, these include:

Reduced Brake Fade
Improved heat dissipation as the caliper is not enclosing the pads, also allowing dissipation fins to be incorporated onto the back of the pads which enhances the cooling effects.

Reliability and Durability
There is no reason why Crisp Brake would not be as reliable/durable as the best on the market.

One Slave Cylinder
Keeps things simpler, less seals, easier to bleed, even pad pressure on both sides

Isolate Hydraulic System
The hydraulics do not need to be as tolerable of heat and dust, reducing cost on ceramic pistons, special seals and so forth.

Simpler Shaping
Reducing manufacturing costs as all the shaping is simple and easier to machine/forge.

Pads are held in by a simple split pin, as the pads are not surrounded by the caliper access is even easier.

The pad size is not restricted by the size of the caliper and can be made a lot bigger if required.

Our current early CAD model is under 110 grams.

Full Floating Caliper, Self Aligning
As a full floating system, installation is very easy (no alignment issues at all) and even with a very bent rotor it would not be the end of your ride.

If you need more information or want to support Allan visit his site

Words: Christoph Bayer / Trevor Worsey Pictures:

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