Well, here is one answer for you. My husband did the 508 a couple of years ago (48 hours, 508 miles) and winds through Death Valley were 50 mph. The only bikes that were blown over were the recumbent bikes. So as long as you are holding on-no time to take your hands off the handle bars you should be good. We rode yesterday in 30 mph winds and it was miserable and we loved it (when it was over with!) We get wind a lot so refuse to change our plans. We always say it makes riding on flats like climbing so it is great training and will power you up! Happy Trails,
Julie