110 mm rear dropout spacing

[treynolds@my-deja.com]

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

[russellseaton1@yahoo.com]

On Apr 22, 1:18*pm, "treyno...@my-deja.com"
<thomas.treyno...@gmail.com> 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.

[Chalo]

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

[John Thompson]

["Followup-To:" header set to rec.bicycles.misc.]

On 2008-04-22, treynolds@my-deja.com <thomas.treynolds@gmail.com> 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. 130mm spacing
will likely result in a noticable "bow" to the stays but shouldn't be a
structural concern.

--

John (john@os2.dhs.org)

[Warren Block]

John Thompson <john@vector.os2.dhs.org> wrote:
> ["Followup-To:" header set to rec.bicycles.misc.]
>
> On 2008-04-22, treynolds@my-deja.com <thomas.treynolds@gmail.com> 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