sizing disc brakes

[Caher]

Hi all,
I would like to upgrade my disc brakes (Hope’s Mini Mono being the favourite at the moment) but do not know which size rotor I should get – how is this size dictated? Are there any other measurements that I’d need to know to upgrade?
Currently I have Hayes Mechanicals but these pale into insignificance when compared to my other bikes Magura Hydraulic Rims.

Thanks
Caher

[publicenergy]

Caher wrote:
> I would like to upgrade my disc brakes (Hope's Mini Mono being the
> favourite at the moment) but do not know which size rotor I should
get

I'd check with the manufacturer of your fork - sometimes these have a
maximum recommended size. I imagine that is partly due to the amount of
braking stress but also the position where the caliper can be fitted.

[Simon Brooke]

in message <Caher.1hm4ry@no-mx.forums.cyclingforums.com>, Caher
('Caher.1hm4ry@no-mx.forums.cyclingforums.com') wrote:

>
> Hi all,
> I would like to upgrade my disc brakes (Hope’s Mini Mono being the
> favourite at the moment) but do not know which size rotor I should get
> – how is this size dictated? Are there any other measurements that
> I’d need to know to upgrade?

Unless you are doing alpine downhills there's no point in an 8 inch
rotor; you aren't going to get fade on a 6 inch one on any hill in
Britain. Of course, if you think 8 inch looks cooler, that's up to you.

--
simon@jasmine.org.uk (Simon Brooke) http://www.jasmine.org.uk/~simon/

Morning had broken, and I found when I looked that we had run out
of copper roove nails.

[Peter B]

"Caher" <Caher.1hm4ry@no-mx.forums.cyclingforums.com> wrote in message
news:Caher.1hm4ry@no-mx.forums.cyclingforums.com...
>
> Hi all,
> I would like to upgrade my disc brakes (Hope's Mini Mono being the
> favourite at the moment) but do not know which size rotor I should get
> - how is this size dictated? Are there any other measurements that I'd
> need to know to upgrade?

I weigh 80kg and have been using a 165mm front, 180mm rear with Mini Monos
for a year and have had no problems descending in the Lake district, Peak
district and various Welsh venues in all weathers using the standard
sintered pads.
A lighter friend fitted some unsintered (organic?) pads to the rear of his
original Minis and cooked 'em good and proper descending from Walna Scar
Road into Coniston, be warned!

Pete