Two (hopefully quick) examples from my limited experience in the past few years. Worst shimmy ever had was on a 1st generation Kogswell that Esteban now owns. Would even shimmy when riding with both hands on the bars. A guess - my weight at the time acted to overload the bike causing the shimmy. Some day would love to ride that bike again and see if my losing 40 or so pounds from that time makes a difference.
My Sam Hillborne had some tendency to shimmy in certain occasions. Even with Marathon Supreme tires. Earlier this summer had Hiawatha Cyclery install a Shimano 105 headset instead of the one that comes with the bike. Shimmy has stopped. A number of reasons that could be. No matter what, am even a happier camper with the bike. Still waiting for my BQ. Eric Platt St. Paul, MN On Dec 11, 1:13 am, CycloFiend <[email protected]> wrote: > on 12/10/10 10:03 AM, William at [email protected] wrote: > > > Since I'm growing convinced that there might not be anyone who really > > understands shimmy, I'm going to run some experiments of my own on my > > Hillborne to attempt to understand it more. Since that bike, in it's > > current state, shimmies willingly when riding no-handed at 15mph on a > > smooth flat road, I think I have a decent baseline and reasonably > > reproducable test environment. I'm going to try several (numerous?) > > things, and I'll at least try to take better than normal notes, and > > see if I can learn anything. > > There have been several significant discussions of shimmy on the iBob list > reasonably recently and over the years. > > Ride buddy JimG has also documented his shimmy experiences and > expermenting/troubleshooting with a non-Rivendell bicycle via his blog > (which can be found viahttp://yojimg.net/bike) > > There are certainly variables he found to damp or reduce speed-specific > oscillations. > > http://sfcyclotouring.blogspot.com/search?q=shimmy > > And just to mention too, that a general discussion of BQ articles is > probably best discussed on a more general list. > > - Jim > > -- > Jim Edgar > [email protected] > > Cyclofiend Bicycle Photo Galleries -http://www.cyclofiend.com > Current Classics - Cross Bikes > Singlespeed - Working Bikes > > Gallery updates now appear here -http://cyclofiend.blogspot.com > > "Then I sat up, wiped the water out of my eyes, and looked at my bike, and > just like that I knew it was dead" > > -- Robert McCammon, "Boy's Life" -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
