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Discussion Starter #1
Is there an ideal ratio between m/c bore and total caliper piston area?

I've just bought one of these for the racebike (GBmoto copy of an APracing rear caliper):-



and I want to get the best (used?) m/c to suit it

I could use the oe TL one if it's right, but I would prefer to get the best (and lightest :devious ) one, if I can

thanks for any advice :)
 

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That looks nice :devious How much :O
 

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Discussion Starter #6
centres are 64mm, thanks for that link :thumbup
 

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Harris makes the brakets, you will have to weld a channel onto ur swingarm though. Van used to make them but dont think he has done a 64mm run in a long time. im using the oem master with my ap and it seems fine for the job.
 

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one of these .

I make them too.

 

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You make the brackets Stu? or just the channels?
 

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I could make you a bracket if you wanted
 

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Discussion Starter #12
:) Looking forward to making my own :)

Might use the original torque arm though
 

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I could make you a bracket if you wanted
Nah i have a Van bracket for mine and the channel already welded onto the JMC swingarm, as well as a spare oem swinger with the channel on it as well :laugh

The harris bracket is about the $250 mark or so and actually damn hard to find. If you could make some brackets in 64mm spacing there would probably be some ppl interested in the OPs caliper set up if they are a cheap knock off of the APs.

Its a huge saving on unsprung weight, the AP caliper weighs 240g compared to stock which is about the 1kg mark, you also ditch the torque arm.
 
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