How much brake fluid do I need to bleed my brakes?
50ml of brake fluid is enough to perform a bleed on one set of cycle brakes (front and rear). If the old brake fluid is particularly dirty or di...
What is meant by 'degassing' brake fluid?
Degassing will allow you to remove the tiny air bubbles trapped inside the brake fluid. By creating a vacuum inside your syringe these tiny air bub...
What is meant by wet and dry boiling points of brake fluid?
The Dry Boiling Point of brake fluid refers to the boiling temperature of fresh, new brake fluid from an unopened container. Whereas the Wet Boilin...
What is the shelf life of DOT and mineral oil brake fluid?
DOT Brake Fluid The shelf life of glycol-based DOT brake fluid is very poor due to its hygroscopic properties, which is why every bottle should ...
What's the difference between DOT 4 and DOT 5.1 brake fluid?
DOT 4 and DOT 5.1 are both glycol-based brake fluids and are used widely in the automotive and cycle industry. They are controlled by standards set...
What's the difference between DOT brake fluid and mineral oil?
We actually wrote a whole article on this very subject which you can find here. For the purposes of this FAQ page we're going to feed you the short...
How do I know which brake fluid to use in my brakes?
The type of brake fluid you should use in your hydraulic brake depends on your brake model. You will usually find the type of fluid your brake was ...
Which brake fluids are used in hydraulic bicycle brakes?
There are two types of brake fluid used in hydraulic bicycle bike brakes today: DOT Fluid and; Mineral Oil DOT Fluid Certainly the most common...
Why does my brake lever feel spongy after bleeding?
A spongy brake lever, or a brake lever which has to be pulled a long way before you feel the brake start to work, is a sure sign of air trapped ...
I cannot reset my caliper pistons. What now?
If you're having difficulty resetting the position of your caliper pistons it is probably because your brake has been filled with too much brake...
How does air in my brake system affect its performance?
For hydraulic systems to work efficiently they must rely on an in-compressible fluid as a means of transferring forces. In hydraulic braking system...
How do air and moisture get into the braking system?
If you open the system to air, when shortening hydraulic hoses for example, this can lead to brake fluid loss and air entering the system. Damaged ...