Originally Posted by
Red Rider
Really? Because when I do my intervals I shift into the big chainring and get close to the smallest in the back, and stand up, otherwise I don't get my heart rate up enough to complete the interval. I notice more torquing when standing so I'm more careful about moving side-to-side than I am on the road.
That was what I was told before. It's the side to side stress on the bike frame that is bad. Your bike isn't locked in when standing and riding on the road. You're being careful about it, so you must have thought about this.