Scary moment on ride yesterday

[Tandem Rider]

The only bikes I ever had that had a consistent speed wobble had an 80s aluminum fork (factory ride so I had no choice). The first time it did it was in a P12 pack at 50ish mph. I did manage to figure out how to deal with it by squeezing the tt with my knees. I finished a few RRs with bruises on my knees from squeezing it so hard to offset the pucker factor. Now, I would just get rid of the bike and get something different.

[redir]

I forgot to mention all my bikes are very large frames, 61cm. I think the reason why my Moots Compact is the only one that doesn't do it is because the frame is smaller and tighter. That's my theory and I'm stickin' to it