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Handlebar rotation
I was looking at photos and you tube films of bicycle racing during the 70's and 80's and it seems that the handle bars were at a very different position then in more recent times. Example: Eddie Marckx time trial 1974, note the downward twist of the handle bars. with the brake levers mounted at almost the center of the "U" bend. https://www.youtube.com/watch?v=vvJSB4gAq3o During a race in 1977 https://www.youtube.com/watch?v=tEAlxGC4Kzg In 1987, still turned down https://www.youtube.com/watch?v=GwU7GXvbjlM In 1990 https://www.youtube.com/watch?v=eojc3AKSWGE in 1994 https://www.youtube.com/watch?v=VtBetiDPPfg In 2001 what may be an intermediate position https://www.youtube.com/watch?v=KAqIVanqbuw In 2007 note how much flatter the bars are with the brake levers fixed almost as an extension of the top flat section of the bars. https://www.youtube.com/watch?v=dbB2O0SmwJw I am wondering. From the revival of bicycle racing in 1946 until the very late 1990's or early 2000's, some 50 years, handle bar position amongst the top riders was very similar with the top of the bars turned down and the bottom "drops" nearly level and then it all changed with the top section of the bars level, or nearly so and the drops angled downward. What happened? Did bicycle geometry suddenly change. Did bicycles get better? Were handlebars suddenly a different shape? -- Cheers, John B. |
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