re: #383 Blind Frog Belly White
First time I ever exceeded 40 mph, the bike started to shimmy. Scared the hell out of me! Then I got a professional fit that raised the saddle 1 cm, moved it forward 1 cm, and dropped the bars 1 cm. After that, no shimmy all the way up to 45.
Also no knee pain even after 5 hours and lots of climbing, which was really the point. Money well spent.
I was in the same situation on an old Honda motorcycle at 100mph.
Things that make you go “ohfuckohfuckohfuck!”