Quote:
Originally Posted by bicycletricycle
I will sum up everything you can read about speed wobble.
Every part of the bike/rider system can/does contribute to speed wobble.
Replacing parts or changing rider position may or may not solve your problem.
Don't stiffen your arms / clamp the top tube with you legs to help mitigate wobble when it arises.
A stiffer fork may help, I have read convincing and conflicting articles about headset contributions. Some people claim a headset with more drag helps, like a needle bearing miche.
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+1 on the roller bearing headset fix. Shimmy is fairly common for tall guys riding big bikes with relatively light skinny steel tubes. For me, a slightly overtightned Miche or IRD rollerdrive fixes the problem 99% of the time. Also, dress warmly, my worst shimmy experiences both occured when I was shivering a lot.