Andrew, I'd be interesting in hearing about your project. As for me, after a couple weeks of fiddling about with this, that, and the other, I've come to some conclusions.
1. My Sam shimmies down hills either with a dynohub wheel or a non-dyno wheel. 2. My Sam shimmies with a rear load or without a rear load, although it's more pronounced with a rear load. 3. In attempting to solve the riddle, my ace mechanic checked all wheels (front, back, dyno, non-dyno) for true, dish, tension. He checked frame alignment, he re-faced the headset. It is his opinion that a roller bearing headset is not necessarily a panacea, and that it may or may not help. 4. Still, the bike shimmies on descents. 5. Although the bike shimmies, I can quiet her down with knees locked around top tube or a hand on the bars. 6. I noticed if I mount my Baggins Adam saddlebag to the front rack the stability is much improved. (Bag+goods = 6.5#) Perhaps this is heavier than I ought to, but I'm now thinking I can try a front loading bag (I want a Berthoud 28, their tallest) and see how it goes. Thanks to all for encouragement in solving the riddle. In the end, i'm not sure why the Sam shimmies. In the end, I still love the bike. I'd just love it more without the shimmy. On Wednesday, May 1, 2013 8:43:23 PM UTC-7, BSWP wrote: > > My 1998 LongLow has always shimmied on descents - yes, I like to take my > hands off the bars, but it was also sensed with hands on - and so I thought > a set of the new hotness needle roller bearings would be a good thing to > try. Placed an order, and coincidentally dropped the forks out today to get > the canti boss fixed (by Ed Litton, in Richmond CA). Loe and behold... what > do I see at the bottom of my headseat, but a needle roller bearing, with a > brinnelled race. > > I'll look at it all more closely this weekend. > > - Andrew, Berkeley > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en-US. For more options, visit https://groups.google.com/groups/opt_out.
