brake-tire clearance question

[NHAero]

On my '88 Nagasawa road trainer, when I ride down our dirt road the tire picks up sand and there is a grinding away down at the fork crown. I thought this was too tight clearance between the underside of the crown and the tire (23-622) but this evening I looked carefully and see that there is about 1/8 inch or so between the tire and the fork - the tight clearance is to the underside of the Ultegra 6500 brake caliper. It's much tighter, not much over 1/32 inch. I can see grinding marks on the caliper.

So - are there calipers that don't sit as low over the tire? Should I just get the Dremel out and take some meat off of the caliper arms? Advice?

[palincss]

Single pivot sidepulls generally have a higher arch than dual pivots. So do centerpulls.

[Mike748]

You could also space the caliper away from the fork a little, that will increase the tire to caliper clearance. Make sure you keep enough thread engagement on the nut, or get a longer nut if needed.

[NHAero]

Thanks folks. The spacing trick doesn't work as it pushes the brake closer to the tire before it gets further away. I'll look at single pivot brakes - any makes/model suggestions?