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[EMAIL PROTECTED] wrote: >> I'm not a fan of the "bicycles don't accelerate" style of statement. >> I do understand the point of it, I just don't like it and I'm keen >> to correct what I see as inaccuracies and bring out more of the >> truth. I think making such broad generalisations is just as bad as >> any popular myth in its own way. > > I see you have some bad baggage lurking around. If you feel strongly > about bicycle acceleration, how about giving some data and examples of > significant acceleration once a bicycle is underway. Pleas do this > under a new heading. No I don't feel so strongly about acceleration that I want to start a new thread on it now - especially after you've now added the subjective word "significant" (I agree that it's not significant if you mean more than a very few seconds at a time from a strong rider and that the speed ranges are small compared to motor vehicles). It's just the wonderful example that will always stick in my mind of you making an exaggerated statement that is so obviously untrue in itself to make a point. You did actually once simply write: "Bicycles don't accelerate". Let's face it, that ain't true (unless we mean bicycles without a rider). Sorry I can't promise not to quote it out of context again - because I love it, in a perverse kind of way. I understand the need to keep things concise (and I admit that I'm poor at it) but feel you sometimes go to far too far and therefore make it difficult to understand the reality - which is not so black and white. There is room on this newsgroup for fuller explanations (in terms the average r.b.t reader can understand). Thank you for the rest of your reply. I'm still not convinced so I'll have to read up more on fretting, steerer flex/movement and what other factors can damage headsets. /snip >> As I mentioned, I ride large frames. Head tubes I have used A9's on >> measure 213mm (over 8"), 188mm and 185mm. > > That should be enough to cause fretting unless the steer tube is > either unusually thick or large in diameter. All 1". ~PB
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