I have Rolf Prima SL's on my Specialized Ruby(an upgrade when I bought it on my dealer's recommendation when I wanted snazzier wheels) I am (cough, cough) very light and have crashed them once too. I think because my wheels have so few spokes, they are pretty hard to true after a crash. My rear wheel is totally rideable, but is technically not perfectly trued anymore. I have a problem with high speed shimmy on descents. This may be in part due to my weight(103 lbs), but when I switched out my front wheel to a Campagnolo Neutron I have, the tendency to develop shimmy seemed much less.I think I'll use the Rolfs for racing or flat rides now.I do lots of hills, so I need to avoid the shimmy!I haven't heard anything about hub failure-the dealer who sold me my Rolfs rides them herself(alot) and she is a medium weight looking person. Hope this info helps! Tokie