Jim: What you say makes a lot of sense in light of my good luck with Velocities. My Synergies are on a Tom Kellogg / Spectrum Cycles 30th Anniversary bike with classic Italian race geometry. I am middle of the pack weight wise (maybe the lower end these days) and do not carry loads on the bike. The bikes I use for touring and urban commuting have Dyads.
On Monday, December 10, 2012 9:24:04 AM UTC-6, Jim Thill - Hiawatha Cyclery wrote: > 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/-/NrfdZbD-IKMJ. 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.
