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Author: Subject: What size M/c
Pdlewis

posted on 15/3/10 at 10:50 PM Reply With Quote
What size M/c

Hi,

I need to replace my rear master cylinder as I think it is causing me issues (im down to this by a process of elimination) what bore are people running for sierra rear calipers? I currently have .625 on the fron and .75 on the rear is this correct?

at the min to get any brake force on the rar i have to adjust the bias so the front is nearly on the end of the bar this then causes me issues with the other en of the bar hitting the accelerator as you brake which isnt ideal, I hope this is just because i have an issue with the M/C not operating correctly

Cheers

Paul

[Edited on 15/3/10 by Pdlewis]








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britishtrident

posted on 16/3/10 at 08:40 AM Reply With Quote
You could try either a 0.625" or 0.7" cylinder in the rear circuit.
Off the top of my head

0.625" = 33% increase in rear pressue to rear
0.7" = 12% increase in rear pressure to rear

Based on that I would guess the 0.625" would be best for getting balance bar somewhere near centre.





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