Front And Rear Iso Disc Mounts

[manuel]

are they different ?

REAR

FRONT

so you cant run a rear caliper on the front with the same rotor and without a load of spacers ?? ? ?

Edited August 22, 2006 by manuel

[nmt_oli]

There is a difference of +20mm in rotor size to the front, this is to enable companies to make one size caliper (cheaper than 2) and have it fit on a 180/160 rotor combination, as generaly a larger rotor is needed for the front.

[manuel]

but what about the 4mm spacing difference - does that come out in the wash due to disc position on the hub ?

so if i wanted to use a rear caliper on the front id need a 20mm smaller one and then a different disc ?

Edited August 22, 2006 by manuel

[RobinJI]

The only difference between the front and rear ISO disc mounts is the 20mm spacing, so if you had a rear caliper designed to fit a 160mm rotor, and you put it on the front, it would fit fine, but it would need a 180mm rotor. that's all, and it obviously works the other way round. IE 180mm front = 160mm rear.

[the judge]

Ignore me, sorry

Edited August 23, 2006 by the judge

[AdamR28]

but what about the 4mm spacing difference - does that come out in the wash due to disc position on the hub ?

so if i wanted to use a rear caliper on the front id need a 20mm smaller one and then a different disc ?

Yep

To use a rear caliper on the front, you'd need a 20mm larger rotor. For example, if the brake was a 160mm on the rear, then you'd need a 180mm rotor to run that same caliper up front.

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