I have a 58 cm quickbeam that I used to have set up with suntour xc pro brakes. In order to use a nitto M12 front rack I used the Paul rack bolts. This puts the rack too far forward and requires a spacer on the threaded fork crown attachment point. This outward cantilevered position paired with overloading my front bag and hitting one too many potholes caused a rack failure for me. (The rack's threaded rod broke underneath the spacer.) You think that I would have wised up after the first one, but I bought a new M12 and this time used the Nitto rack bolt and Mafac brakes, unfortunately in order to keep the rack level, I still needed to use a spacer, the second rack broke the same way as the first about a year later.
Finally, I wised up and switched to an M13 (narrow) rack and used Mafac Tandem brakes (same geometry and mounting style as the Tektro that Bill recommend). This rack is more re-enforced at the fork crown and I was able to mount it without any spacers. That rack never let me down. My Quickbeam is now in a rackless single-speed cyclecross formation, so I still have the M13 rack. It's available if you happen to want to go that direction. But, yeah. Listen to Bill. I wouldn't mix off the shelf Nitto canti-post mounted racks and the Paul rack bolt. Oh, here is a picture of it with the Mafacs and the M-13: https://flic.kr/p/n7oK6g And previously, with the Mafacs and the M12. https://flic.kr/p/bNC8Pa Best of luck, Sam McCune New Haven, CT -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to firstname.lastname@example.org. Visit this group at https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.