Hi James, you are trying to achieve braking force with less foot pressure, as I tried to explain (probably badly) before, reducing the diameter increases fluid pressure with the same foot pressure, but longer travel is the byproduct, you can calculate everything using boyles law and pedal ratio, it is very important to keep shoe adjustment as tight as possible to keep pedal travel to a minimum as you need to minimise fluid movement. Adjust shoes to lock and go back one click, you may have some touching as you turn the wheel but not drag all the way. You can bleed all corners with wheels adjusted to lock and then back off, same principle as clamping 3 wheels as Peter suggested but a little easier. This ensures no slave cylinder movement but does not eliminate air in the cylinders, that’s another explanation all together, you should get a very hard pedal with little travel, them back off each wheel one click and check every time, pedal travel will increase every time you back off one wheel.
Hi James, you are trying to achieve braking force with less foot pressure, as I tried to explain (probably badly) before, reducing the diameter increases fluid pressure with the same foot pressure, but longer travel is the byproduct, you can calculate everything using boyles law and pedal ratio, it is very important to keep shoe adjustment as tight as possible to keep pedal travel to a minimum as you need to minimise fluid movement. Adjust shoes to lock and go back one click, you may have some touching as you turn the wheel but not drag all the way. You can bleed all corners with wheels adjusted to lock and then back off, same principle as clamping 3 wheels as Peter suggested but a little easier. This ensures no slave cylinder movement but does not eliminate air in the cylinders, that’s another explanation all together, you should get a very hard pedal with little travel, them back off each wheel one click and check every time, pedal travel will increase every time you back off one wheel.