Mix 'n Match calipers and master cylinders - Wrist Twisters
 
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post #1 of 6 Old 04-01-2016, 02:45 PM Thread Starter
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Mix 'n Match calipers and master cylinders

What do I need to know when mixing and matching master cylinders to my brake calipers?

I've got non-radial brakes on a set of GSXR 750 forks. The matching master cylinder here is questionable... I've heard that an R1 master cylinder bolts right up, but what do I need to know to determine what will fit for myself?



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post #2 of 6 Old 04-01-2016, 04:26 PM
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Which calipers do you have?

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post #3 of 6 Old 04-01-2016, 04:33 PM
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I was doing this last year, ended up with a set-up I'm really happy with, all the way down to the [gasp] disk rotors from China.

Might be something here to help you out

https://www.wristtwisters.com/forums/...wap-60993.html

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post #4 of 6 Old 04-01-2016, 04:41 PM Thread Starter
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From what I can tell, I have bone stock components.

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post #5 of 6 Old 04-01-2016, 05:00 PM
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I ended up with these calipers

1999-Present CBR600F4(i) mc 5/8” (15.87mm)
caliper pistons 34mm/32mm

and this m/cylinder

GSXR600/750 '04-'07 - OEM Radial Master Cylinder, 19.05mm

and find the whole set-up a huge improvement over how my stock set-up worked. Some folks report good feel and good stopping power from bone stock, but mine was lousy.

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post #6 of 6 Old 04-01-2016, 06:39 PM
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This can be of help: https://www.wristtwisters.com/forums/...der-48345.html
All it requires is the caliper piston diameters and as precise as possible measurements from whatever master cylinder (M/C) you want, or guidance on how to select one with the right bore and mechanical leverage ratios. Of course it can also be used to select a suitable axial M/C.

I used this procedure to determine that a M/C from a CBR1000 would be a suitable replacement for the stock 919 M/C, taking into account the feel I was shooting for.

Rob

If it has already been done, it is safe to assume it is possible to do it.
On the other hand, if it has not been done never assume it is impossible to do it.
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