does anyone know if the 426 has the same rear brake disc as the 450's??
The 450 disc is bigger by something like 5 or so milimeters. They're not interchangeable unless you go to the 450 caliper and bracket. The 450 disc will bolt to the 426 hub. I went to a complete 450 rear brake set-up on my '00 426 and saw a definate improvement.
I read a post on rear wheel interchangeability in which the poster stated that although the rear disc diameter did change, the disc and wheel could still be interchanged. There's only a 2.5mm radial difference, but I can see that being a problem with the wrong mix of parts.
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