I haven't done a lot of TT'ing so far this year, so I've only used the disc 3 times. The last one was very windy and I was a little concerned about being blown about with the disc (it was a pretty seriously ugly wind - enough that peple were doing over 30 mph (48.3 kph) out, but only 12 mph (19.3 kph) back and I never felt like it was going to take me off the road or anything bad like that), but it was fine. It's hard to say, since really a lot has changed besides just the rear wheel, but it may have even helped since I did better than I expected. From what I understand, in a crosswind the disc can actually act like a sail and help you go forward faster. I'm not a really strong TT'er - middle of the pack at stage races usually - but I still got omnium points for being 11th out of a few over 30 some particpants and I beat some people that I generally consider to be stronger than I am. An omnium race here is a stage race that instead of using your total time, uses a points based on top finishes (1-11 in TT's and crits, 1-14 in the road race I think) in each stage - I actually prefer a regular stage race since its easier for me to make up time in a road race than it is to get points in TT's and crits. I've got another big stage race coming up next weekend that will include a TT, so another chance to get the TT bike and the disc out. Last year I muffed the TT in this race bad, by having my rear wheel skewer come open and the rim drag on the brake for the whole TT - so I really expect to do much better this year
One thing that I would like to try to do - the speed sensor for the computer that came on the bike is positioned for the rear wheel, so I want to try to get a magnet onto the disc - I think I'll have to try to find something very small and epoxy it on. Right now I can only get cadence, which is OK - I can pace myself with hr and cadence, but I'd like to have speed as well. I guess I could move the sensor to the front fork, but its a funky big aero fork, so it might be hard to get it to stay put.





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