Jim,  Don't forget, the 61cm G1 that is no longer mine, could shimmy when things were right (wrong?). Just was never consistent enough for me to form any...
... Last fall, I bought a prototype frame from Boulder Bicycles. They called it the "shimmy monster" and gave me a good deal on it. It shimmied like hell when...
... Hey Jim. I kept the saddle height the same when switching between saddles, and tried to do the same with saddle fore-aft. I remember the big shimmy...
... Thanks, Bill. No new businesses here--our hands are full just doing our regular work. I don't know how guys like Adam A. do it. Funny, but I got to liking...
... Or, just use the lower bearing/race assembly from the roller-bearing headset, and then use the stock HS upper bearing/race assembly, to create a hybrid...
Lee, Very interesting stuff. Is there a significant difference in weight between those two saddles? I've decided that my bike rides better if I carry my heavy...
What everyone has said makes sense... - Jim reduced friction is his headset and that helped the shimmying. Yup. Adding damping in the form of headset friction...
Oops. I wrote: "In either case, if you moved the harmonic frequency AWAY from the driving frequency, which is defined by the front wheel dynamics (rotating...
... Some experienced people I've talked with about this issue have pondered the fact that the (G2) P/R frames use flexy tubing coupled with a stiff 9/8" head...
I have a much less technical question here. I have noticed that an awful lot of this shimmy conversation involves the phrase "with no hands..." Now, I can...
... Ask if anyone's MkIII 61.6 shimmies. That's what's in stock. And the reason that the LHT trucker (and the Stout) don't shimmy is that they're made of...
... Oooo! So, you need to keep the spring (in this case, the frame) springy, but you want to get rid of the vibration at the harmonic frequencies... This...
JIm, Yes, I have been lurking on the list for a year or more. I have refrained from contributing to the shimmy discussion because I didn't think I had much to...
... I have a 61.6cm P/R mkII, and it has never shimmied on me, and not for lack of trying. I have done several ridiculous things to try to trigger it: *...
On Mon, Jun 1, 2009 at 3:09 PM, Kogswell Cycles ... I just remembered -- I have a strip of velox cloth tape on my top-tube as a handlebar-ding protector. Could...
... When I had my frame aligned, the mechanic who did it checked the fork dropouts with the Park tool and noticed that they were slightly misaligned. He...
To add another confusing variable to the mix in response to Dan's issues: I'm also riding a 61.6cm P/R MkII w/ 40mm trail fork, and I've yet to experience the...
... The listed weights are pretty close, although I've haven't weighed them myself: 536g for the Model 6 vs. 540g for the B-17. ... I've just started carrying...
... That sounds odd. Why can't you tighten the headset enough? If you tighten it (add more preload), does it bind when you turn the fork/handlebars? If...
... Stock headset, yes; assembled properly? I'm fairly sure, yes (following the Park Tool directions); tighten to the point of binding? I've never been able...
... I'm afraid not. The steerer is a couple of mm below the top of the stem or spacers above the stem as currently configured). One thing I've never tried is a...
... Uh, *yes* What is the top-cap attached to if you have no star nut? It's there to preload the bearings before you clamp down the stem -- it's not just a ...
... The bearings -can- be loaded via a clamp-on cable guide or some other sort of clamp. And in the case of a 1" steerer, you can then use a quill stem. (And...
On Mon, Jun 1, 2009 at 7:27 PM, Kogswell Cycles ... I use a clamp-on guide myself! It's great for keeping it together post-setup. I had to use the no-top-cap...
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