I will be running a sierra set up with discs all round. The pedal box will have a bias bar and twin master cylinders.

0.625 seems standard for the front circuit. However on the rear what do you recommend? 0.7 or 0.75???

I have done a search and can't find what I'm looking for. I'm thinking 0.75 for the rear due to it being a disc setup. It seems the 0.7 size works well with drums. Any adjustment can then come from the bias bar. I don't want the rear to be over braked. What are your thoughts??

Thanks

Joe

trial and error i have been told by a RS driver.

There good fun when setup wrong lol

I have Willwood at the front on 0.625 and Sierra Disc on the rear with 0.7.

XR4x4 discs up front and discs on the back with .625 in front and .7 on back

Thanks for your help folks. It looks like a 0.7 cylinder on the rear is the done thing. It would seem that most people use a 0.75 for the clutch, I think???