I appreciate that the brake bias setting is not widely understood, so I hope this can help to clear it up for a lot of people. I think the presumption is that it's a measure of exactly how much force the brakes generate. So if we have 50/50 bias the front and the rear brakes generate exactly the same braking force. That's not actually how it works. The brake pedal operates two otherwise unconnected braking systems simultaneously; front and rear. The brake bias is a measurement of how much of the pedal pressure is split between the two braking systems. Let's look at the Tatuus F4 as an example of what that means: The front brake system on the F4 gives us 1546 maximum braking torque per wheel. The rear system can generate 1147nm at maximum force. If we have 50% rear brake bias each braking system will produce 50% of the maximum torque: 773nm front 573.5nm rear At maximum rear bias (60%) the split is 40f/60r, which is: Front 618.4 Rear 688 Therefore the actual braking torque supplied at the wheels is a little over 50/50. 47.34/52.66 to be precise. Virtually all of our cars have more powerful front braking systems than rear so this explanation is applicable across the board.