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#1
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110 mm rear dropout spacing
Last night I picked up a 1955 Raleigh Lenton Grand Prix frame for
$10. It has straight gauge 531 tubing. Very nice. However, the rear dropout spacing is 110 mm. So what can I do with that? I'm assuming that I would need to take it to a frame builder in order to spread it even to 120 mm, let alone 126 or 130. I don't see any 110 mm rear hubs out there (plus I already have two fixed gears). Any suggestions? Tom |
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#2
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110 mm rear dropout spacing
On Apr 22, 1:18*pm, "
wrote: Last night I picked up a 1955 Raleigh Lenton Grand Prix frame for $10. *It has straight gauge 531 tubing. *Very nice. However, the rear dropout spacing is 110 mm. *So what can I do with that? I'm assuming that I would need to take it to a frame builder in order to spread it even to 120 mm, let alone 126 or 130. *I don't see any 110 mm rear hubs out there (plus I already have two fixed gears). Any suggestions? Tom Older track bikes used 110mm spacing in the rear. Since you already have two fixed gears, I'll suggest a single speed instead. Might be able to reduce the spacing on a track hub from 120 to 110. |
#3
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110 mm rear dropout spacing
treynolds wrote:
Last night I picked up a 1955 Raleigh Lenton Grand Prix frame for $10. It has straight gauge 531 tubing. Very nice. However, the rear dropout spacing is 110 mm. So what can I do with that? I'm assuming that I would need to take it to a frame builder in order to spread it even to 120 mm, let alone 126 or 130. I don't see any 110 mm rear hubs out there (plus I already have two fixed gears). Any suggestions? All BMX rear hubs have 110mm spacing. Many of them have 3/8" (9.5mm) rear axles. There are "flip flop" variants that have a 1-3/8" freewheel thread on one side (minimum 15t single freewheel) and a 30mm freewheel thread on the other side (minimum 13t). They are commonly available in 28, 36, and 48 hole drillings. Sturmey Archer and other three-speed hubs have spacings of less than 120mm, but usually more than 110mm. Sachs Pentasport/SRAM P5 five- speed hubs also have versions with sub-120mm spacing. Chalo |
#4
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110 mm rear dropout spacing
John Thompson wrote:
["Followup-To:" header set to rec.bicycles.misc.] On 2008-04-22, wrote: Last night I picked up a 1955 Raleigh Lenton Grand Prix frame for $10. It has straight gauge 531 tubing. Very nice. However, the rear dropout spacing is 110 mm. So what can I do with that? I'm assuming that I would need to take it to a frame builder in order to spread it even to 120 mm, let alone 126 or 130. I don't see any 110 mm rear hubs out there (plus I already have two fixed gears). Any suggestions? 110mm was a typical spacing for track bikes and path racers. It ought to be trivial to spread it to accommodate a more modern hub. http://www.sheldonbrown.com/frame-spacing.html shows how. 130mm spacing will likely result in a noticable "bow" to the stays but shouldn't be a structural concern. Might need a longer bottom bracket spindle for the cranks to clear, though. -- Warren Block * Rapid City, South Dakota * USA |
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