This Velocity cracking problem is almost exclusively an issue with the Synergy OC model, but Velocity claims to have beefed up the extrusion to fix the problem (I believe them, but time will tell). I have observed the same problem with various Mavic rims. I have observed the same problem with Sun CR-18 rims. I have observed the same problem with DT-Swiss RR series rims. I've observed the same problem with Salsa rims. I've NOT observed the problem with non-eyeletted v-profile rims like the Dyad, Aerohead, Aeroheat, A23, Deep V, HED Belgium, various Stan's NoTubes models, etc. I've also not observed it on some heavy-duty box rims like the Rhyno Lite, but those rims would be unacceptably heavy for most of us.
In my opinion, the classic eyeletted box-style rim is just a failure-prone design. The spoke exerts a strong force perpendicular to the wall of the rim. That's why the eyelet is necessary. But even with the eyelets, these rims are apparently not up to the abuse to which we subject them, especially for heavier riders with a rear-bias to the weight distribution (an effect of Rivendell-style slack seat tubes and high bars). High tire pressures and rough roads ridden by us all-rounder types are also a culprit. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To view this discussion on the web visit https://groups.google.com/d/msg/rbw-owners-bunch/-/PqlJBHpj_zcJ. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.