hope caliper sizes. HELP!!!

crossland · Jul 18, 2012

confused.com!

ive got some c2's. number 3 calipers which supposedly fit 185 front and 165 rear on is mounts. ive offered up on the forks and it looks like 165 front :?
im currently looking at buying the single number 5 caliper in the for sale bit and the chap is certain that he is running 185 front and rear on number 5's.
my mate turned up tonight running 185 on number 3.

what the hell?

is there a chart somewhere that decodes this insanity?

Enid_Puceflange · Jul 18, 2012

it all depends on what your frame / forks respectively are designed to run as standard fitting

Some frames are designed to take 160-180mm
forks anywhere between 180-200mm

Magsy · Jul 19, 2012

This is my understanding :

Forks should have a built in mount 20mm larger than the rear, however there are exceptions....

Which forks and frame?

A number 5 is smaller than a 3 I'm pretty sure, so that will take you the wrong way.

It is dead easy to measure, just go from centre through the caliper to the top of the pads...what does it say?

Is your mate running the exact same C2's? You cannot compare across models either..

crossland · Jul 19, 2012

and this is supposed to be international standard

my mate haz z1's on his tazmon.
i have RS revalations on my superlight.

and i think thats where the difference must be. i too have a set of z1's and the mounts are completely different.

retrocomeback · Jul 19, 2012

Any Bombers pre 99 are likely to have the old 'Formula Standard' size mounts (48.5mm) of which there is no modern equivalent. there used to be a number of adapter mounts on the market for these but not sure they are available any longer. I might need one on my build if I bother with a front brake, so do let me know if you find some!

old_coyote_pedaller · Jul 20, 2012

There's info here,

http://web.archive.org/web/200406051054 ... _index.htm

Let the page load the search result, then scroll down to "Standard brake fitting information"

That website is quite handy for retro info.

hope caliper sizes. HELP!!!

crossland

Old School Hero

Enid_Puceflange

Magsy

Retro Guru

crossland

Old School Hero

retrocomeback

Retro Guru

old_coyote_pedaller

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