Originally Posted by
ggg300
My buddy has it happen to him on his Cadd, I got on it to see...and nada. But when he rides it it is there.
So, unless he is talking out of his assz, it must be a combo of the bike and rider???
Yep, the weight of the rider plays a role, as well as center of mass and probably 300 other variables.
If I take my hands off my bars, my bike will start wobbling at about 25 mph. Most of my friends who have descended at 60+ all say it's normal, and you just grip the top tube and it goes away.
I'm not sure that anyone really knows precisely what causes it. I read a study someone did on it a while ago, but I can't find it right now (read: I'm too lazy to look for it).
Whether it's a flaw, or not a flaw, I don't really care. It's easy to deal with.