hey cool.

Used to ride Ksyrium Elites. However, after about 5 years I noticed a case of speed wobble which was traceable to these wheels. Scary - only hits you at speeds above 45 km/h in very rare circumstances. Like riders lighter than me (90kg) would probably not have this same wobble at the same speed, or maybe not at all on their bike. I mean, when I really investigated it, I was fortunate to have these conditions just right for recreating the wobble - strong wind from the right rear. The Ksyriums seem to have little support on the right rear as they have little lateral support - the spokes are nearly vertical - moreso than most hubs. And I recreated the wobble safely on flat terrain by kicking it in these conditions, then unweighting the saddle, then sitting down - wobble! in the rear wheel.

Anyway, I went to laced-up Mavic CXP-33 rims with ultegra hubs and DT spokes - mostly butted 1.8/2.0 mm except the drive side rear which are Champion straight gauge 2.0 mm. I'm happier with these because the Ultegra hubs are a little better and no more speed wobble - at least none I have ever detected in thousands of km. Also the Ksyriums were more exposed to side winds.