On a long ride the other day I was accelerating down a steepish descent when I suddenly developed speed wobbles at 75kph. They felt like they were getting very severe so I gently applied to brakes to pull below 60. I am not sure why this happened because I have been this speed before with no worries.
I did notice that I had lost a bidon out of my seat carrier and we speculated that perhaps there was a slight imbalance in drag passing over my lower back through the bottle cage.
FOr the record I was riding a 2001 TCR Aero with a Thomson fast forward post. I had the original bars on and was down in the drops with face basically on the stem. I've ridden this bike with my race carbon x's on at 90kph and felt fine (although a little wary as I hadn't ridden that speed before). There was no wind factor.
Any suggestions?
I did notice that I had lost a bidon out of my seat carrier and we speculated that perhaps there was a slight imbalance in drag passing over my lower back through the bottle cage.
FOr the record I was riding a 2001 TCR Aero with a Thomson fast forward post. I had the original bars on and was down in the drops with face basically on the stem. I've ridden this bike with my race carbon x's on at 90kph and felt fine (although a little wary as I hadn't ridden that speed before). There was no wind factor.
Any suggestions?