This is probably another post where I'm spending a significant amount of time thinking about something that others may not even think twice about but there we are.
After doing some reading I've found that there seems to be at least three different sized cylinders available for the rear brakes and I'm just wondering if I need to make a change to a different size being that I've changed the front callipers to Cooper 'S' units.
I've made a spreadsheet which calculates the effort front and rear for a given scenario.
M/C - Size of front and rear bores of master cylinder
Front - Size of calliper bore and the piston surface area ratio to the relevant master cylinder bore
Rear - Size of brake cylinder bore and the piston surface area ratio to the relevant cylinder bore
The ratio is worked out as 'Calliper piston face surface area / Master cylinder piston face surface area' so for the standard fronts every 1 pound on the master cylinder will result in 16.33 pounds at the disc.
This doesn't take in to account the brake limiter valve, however I'm unsure what effect this would have on the braking balance.
Should I be thinking about swapping from the 0.750" cylinders to the 0.625" cylinders to ensure the rear isn't over braked?
I'm going to have to fit one or the other anyway as I'm relatively certain the two I have on there currently are mismatched. I'm just not sure whether to stick with the 0.750" standard or downsize to 0.625" as fitted to the Cooper 'S'?