[johnbryanpeters]

I have two wheelsets that came off '01 and '02 Raleigh M-8000s. The first came with Diatech brakes, the second with Magura Julies.

So, cool, I figure, spare wheel set, easy changes.

I went through an unreasonable period of odd problems with brakes dragging after meticulous shimming of the calipers, finally took both wheelsets in to LBS, asked 'em to figure it out.

Came back with the brakes not dragging, but still not right. Calipers were shimmed out about 0.5 mm, disk on one wheel was shimmed out likewise. I eyeballed one of the disks, and it still wasn't on the caliper centerline.

So, I emailed Jimi at Magura, and he put me on to dimensioned specs available on download section of www.magura.com.

Seems that when Shimano came out with disks, they got the ISO specs changed. Rear disk moved towards frame by 2.6 mm, front disk moved towards fork 0.7 mm (2000 vs. 1999 ISO spec).

So it seems that if I really want it right, I can either buy new hubs for the older wheelset or have some shims fabricated for the old ones.

Props to Magura for getting me pointed to the right information.

J

 

[sub6]

i have a 1999 ISO hub that uses a shim (to bring it into modern standard), basically it's just a thin aluminum donut with six holes in it. Works fine. It's a Magura Louise Pro hub. Perhaps Magura could set you up with a pair of shims?

 

[joE_2k2]

AFAIK, Hope do (or did) rotor shims for this problem.

 

[johnbryanpeters]

Magura part number 0721006 is a 3 mm disk spacer for the rear wheel with the proper bolts.