I seem to recall that the rim profile was revised about the same time as Longleaf had this run of 650b A23's made. That may be when the parallel brake surfaces happened. I believe that's also when the updated the bead hook to a more tubeless friendly design...
Steve On Tue, Nov 5, 2013 at 7:21 PM, Bill Lindsay <tapebu...@gmail.com> wrote: > The A23 with parallel brake tracks will very likely be my favorite rim. > That's great news that they are parallel, even if I'm a little confused on > what changed between the time I bought A23s a couple years ago and now. > Maybe nothing changed and I'm crazy? Wouldn't be the first time.... > > > > > On Tuesday, November 5, 2013 2:32:23 PM UTC-8, Jan Heine wrote: >> >> I read this thread with interest, as I am putting the finishing touches >> on the Winter issue of *Bicycle Quarterly*. This issue includes a test >> of the 650B Velocity A23 rims. I checked the brake tracks of our samples, >> and they are parallel, as they should be. So they work as well with any >> brake type as most other rims. The "aero" shape is below the brake track, >> and does not affect braking in any way. It's interesting that while there >> are so many wonderful 650B tires available, few well-designed 650B rims are >> available today. Without giving too much away, the Velocity A23 appears to >> solve that problem, finally. >> >> Jan Heine >> Editor >> Bicycle Quarterly >> http://www.bikequarterly.com >> >> Follow our blog at http://janheine.wordpress.com/ >> > -- > 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 rbw-owners-bunch@googlegroups.com. > Visit this group at http://groups.google.com/group/rbw-owners-bunch. > For more options, visit https://groups.google.com/groups/opt_out. > -- 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 rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
