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rear-facing dropouts
Today there was a gorgeous open-frame steel
bike from the 60s or 70s, with the favorite 635 tires. The only wrench in the machinery is that it has rear-facing dropouts, and the o-bolts to grab the rear wheel axle to tighten the chain were missing. If it ever had any! Or were they always there on such bikes? I think such, now exotic spare parts can be difficult to find... Can you get away without them? I read [1] that on track bikes, also with rear-facing dropouts, they don't have them (the o-bolts). But I suppose people set the tension before every race! I also read that track bikes do not have QRs, because "threaded nuts will hold the chain tension far longer", and that such bikes have a more robust, 1/8in chain. I bring this up because it seems to contradict what was said in another thread that QR is stronger than nuts. Obviously, people don't race track bikes as others do commuters! Unless I'm missing something else (I never even saw a track bike IRL). BTW aren't all nuts "threaded"? Except those who participate in reality TV shows... [1] page 188 in @book{complete-road-bike-maintenance, author = {Guy Andrews}, ISBN = {978 1 4081 7093 9}, publisher = {Bloomsbury}, title = {Complete Road Bike Maintenance}, year = 2013 } -- underground experts united http://user.it.uu.se/~embe8573 |
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