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Making a fixed-wheel bike
Following recent bike misadventures, I'm considering taking up a
friend's offer of an old frame, to turn it into a fixed-wheel bike. He says it's an old touring frame with "relaxed geometry". My main concern is that the bottom bracket will be too low and I'll keep catching the pedals on the ground, something that I've done several times lately on my old Raleigh hybrid. What else do I need to consider? I konw it needs to have horizontal drop-outs. What about axle spacing? Daniele |
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Making a fixed-wheel bike
D.M. Procida wrote:
I konw it needs to have horizontal drop-outs. What about axle spacing? Not a great problem. If it's an old road frame it'll either be 130mm or (if very old 125mm), and I'm assuming it's steel. That gives you two options 1) Buy a rear hub that can be run in 130mm OLN. Easy enough now or 2) Just respace the rear to 120mm and run a track hub. Costs not a lot if you strip down the bike. Arthur -- Arthur Clune PGP/GPG Key: http://www.clune.org/pubkey.txt The struggle of people against power is the struggle of memory against forgetting - Milan Kundera |
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Making a fixed-wheel bike
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Making a fixed-wheel bike
Rob Morley wrote:
If it's an old road frame it will be 126mm, or 120mm if it's very old. Opps. That's what I meant. Sigh. Arthur -- Arthur Clune PGP/GPG Key: http://www.clune.org/pubkey.txt The struggle of people against power is the struggle of memory against forgetting - Milan Kundera |
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Making a fixed-wheel bike
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Making a fixed-wheel bike
D.M. Procida wrote:
Following recent bike misadventures, I'm considering taking up a friend's offer of an old frame, to turn it into a fixed-wheel bike. He says it's an old touring frame with "relaxed geometry". My main concern is that the bottom bracket will be too low and I'll keep catching the pedals on the ground, something that I've done several times lately on my old Raleigh hybrid. What else do I need to consider? I konw it needs to have horizontal drop-outs. What about axle spacing? Daniele consider spd pedals, you'll get cornering clearance, and loosing a pedal because you forger you were on fixed is much more difficult If you need conventional pedals fit the thinnest and narrowest you can find. Shorter cranks or a nice fat tyre will help a lot. You can bend an old steel frame to any hubwidth you want, but hubs are available from 110 to 135mm -- /Marten info(apestaartje)m-gineering(punt)nl |
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Making a fixed-wheel bike
M-gineering wrote:
My main concern is that the bottom bracket will be too low and I'll keep catching the pedals on the ground, something that I've done several times lately on my old Raleigh hybrid. What else do I need to consider? I konw it needs to have horizontal drop-outs. What about axle spacing? consider spd pedals, you'll get cornering clearance, and loosing a pedal because you forger you were on fixed is much more difficult If you need conventional pedals fit the thinnest and narrowest you can find. Shorter cranks or a nice fat tyre will help a lot. Fat tyres, no thanks! But yes, of course I would have SPDs. You can bend an old steel frame to any hubwidth you want, but hubs are available from 110 to 135mm I thought bending was bad for frames, and was not advised. In fact in the days when six-speed hubs were new, I remember reading strong warnings not to try forcing them to fit by bending. Daniele |
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Making a fixed-wheel bike
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Making a fixed-wheel bike
D.M. Procida wrote:
I thought bending was bad for frames, and was not advised. In fact in I wasn't suggesting bending the frame (a PITA when changing the wheel if nothing else) but getting a shop to reset the rear to a different width. Arthur -- Arthur Clune PGP/GPG Key: http://www.clune.org/pubkey.txt The struggle of people against power is the struggle of memory against forgetting - Milan Kundera |
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Making a fixed-wheel bike
in message
, D.M. Procida ') wrote: M-gineering wrote: My main concern is that the bottom bracket will be too low and I'll keep catching the pedals on the ground, something that I've done several times lately on my old Raleigh hybrid. What else do I need to consider? I konw it needs to have horizontal drop-outs. What about axle spacing? consider spd pedals, you'll get cornering clearance, and loosing a pedal because you forger you were on fixed is much more difficult If you need conventional pedals fit the thinnest and narrowest you can find. Shorter cranks or a nice fat tyre will help a lot. Fat tyres, no thanks! But yes, of course I would have SPDs. You can bend an old steel frame to any hubwidth you want, but hubs are available from 110 to 135mm I thought bending was bad for frames, and was not advised. In fact in the days when six-speed hubs were new, I remember reading strong warnings not to try forcing them to fit by bending. You shouldn't bend aluminium frames, they don't like it and are prone to snap. Not so much of a problem with steel. -- (Simon Brooke) http://www.jasmine.org.uk/~simon/ ---===*** This space to let! ***===--- Yes! You, too, can SPAM in the Famous Brooke Rotating .sig! ---===*** Only $300 per line ***===--- |
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