What is a bleedblock?
A bleedblock is a simple, small cuboid that is put into the disk brake caliper instead of brake pads when filling or bleeding the brake. This prevents:
- 1. brake fluid or oil dripping onto the pads while bleeding.
- 2. high brake fluid pressure pumping the pistons out of the disk brake caliper.
No big deal so far, considering that bleedblocks of this kind are included with every large batch production of brakes. But what's really new is that these things are now made of steel.
Advantages of steel:
Conventional bleedblocks made of plastic are far too soft to tell if the brake has been properly bled and has a perfect bite point at the end of a bleeding process. Checking it with brake pads and the rotor in place is also not very helpful because pads are amazingly soft and compressible. You can tell if a brake has been fully bled only if the pick-up pistons press directly onto a very hard and level block.
And why do they have to be so ugly?
To make sure they are affordable. The Trickstuff bleedblocks are made from standard construction steel using a laser cutting machine. And that steel is grey and it rusts - but never mind: this is the only way to offer a good price with the small unit quantities they have had made.
The block is about 10 millimetres thick, as thick as two brake pads plus a rotor. Allowing you to watch at the workbench how evenly and how far the pistons travel out in the operating state. Works with brakes with two or four pistons.
Amazing, isn't it, how much can be written about such a small and inconspicuous piece. Even more amazing is the fact that something like that has not been available before. Once you've tried it out, you'll DEFINITELY never want to bleed your brakes in any other way. An absolute must-have for professionals.