Changing PM forks IS - brakes

ste_t

Bought my mate a set of 2nd hand Toras to replace his Suntour xcrs, but didn't think to check the brake mounts. He has Magura Julies, running a 180mm(ish) rotor, which are PM but the Toras are IS, . Is there any way of swapping the mount but using the same rotor, ie not using a +20 jobbie? Options either way would be much appreciated, as my local bike shop tried to explain it to me but I didn't exactly get it... :oops:

Cheers

nicklouse

you may have fun.
do the maddies have any adaptors?

and are you sure they are PM?

have a read
http://www.bikeradar.com/forum/viewtopic.php?t=1590919

ste_t

The forks are definitely PM and the the brake caliper plugs straight on without an mount, so must be a PM caliper. Is there a mount that will let me swap it straight onto the IS forks?

allthegearnoidea

sounds to me like you need one of these
http://www.chainreactioncycles.com/Mode ... elID=17390

post mount calipers can be used on IS mounts quite easily, usually and adaptor likt the one above, although am sure nick will be able to confirm.

nicklouse

ste_t wrote:

The forks are definitely PM and the the brake caliper plugs straight on without an mount, so must be a PM caliper. Is there a mount that will let me swap it straight onto the IS forks?

have fun. sounds like you have one of maggies specials.

a standard post mount caliper when bolted directly to a post mount fork uses a 160mm disc

so you will be going up 20mm on the disc.

ste_t

Seen these on superstar - would type 1 work without having to change the rotor? It says PM to IS F160, but thats all the info they have.

http://superstar.tibolts.co.uk/product_info.php?cPath=57&products_id=359

nicklouse

yes that should be fine with your caliper and rotor.

ste_t

Perfect. Cheers nicklouse

supafly1982

LOL ive just done the same, i bought IS mounts and it was Post mounts i needed, shimano do a PM to IS adaptor for £7