Back wheel too wide

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Bwgan
Posts: 361
Joined: Wed Oct 03, 2012 19:55 pm

Back wheel too wide

Postby Bwgan » Wed Mar 06, 2013 18:54 pm

Hi guys,

I bought an old steel frame before Xmas to build up slowly. I've now got everything I need to build it and I have a problem, the back wheel (which in now running a 10 spd) cassette will not fit into the frame. If I was to really open the frame up and someone else put the wheel in it would fit, but I'm worried that if I were to puncture out on the road it would be game over. Anyone got any ideas what I can do?
Cheers


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sungod
Posts: 6620
Joined: Sat Nov 07, 2009 13:52 pm

Re: Back wheel too wide

Postby sungod » Wed Mar 06, 2013 19:17 pm

the rear spacing was narrower on old frames (designed for 5-speed or 6/7-speed for instance)

modern road frame for 8/9/10-speed is 130mm

as it's a steel frame, it can be cold set, i.e. bent, to widen the spacing, see this page for more info and how it can be done...

http://sheldonbrown.com/frame-spacing.html

...doing it could cause damage, and this will of course void the warranty
my bike - faster than god's and twice as shiny

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Monty Dog
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Joined: Thu Dec 14, 2006 14:31 pm

Re: Back wheel too wide

Postby Monty Dog » Wed Mar 06, 2013 19:38 pm

Assuming its a steel frame as there were very few non-steel frames in the days of 6-7 speed. If going the cold-setting route, you'll also need to get the derailleur hanger re-aligned - suggest you take it to a bike shop if you're not comfortable applying a fair amount of force to the frame - because of the springy nature of steel, you need to force it a bit wider as it'll spring back.
Make mine an Italian, with Campagnolo on the side..

Bwgan
Posts: 361
Joined: Wed Oct 03, 2012 19:55 pm

Re: Back wheel too wide

Postby Bwgan » Wed Mar 06, 2013 21:25 pm

sungod wrote:...doing it could cause damage, and this will of course void the warranty


Think that will have expired about 15 years ago lol

Bwgan
Posts: 361
Joined: Wed Oct 03, 2012 19:55 pm

Re: Back wheel too wide

Postby Bwgan » Wed Mar 06, 2013 21:26 pm

Cheers for the advice guys, I'll take it to Graham Weigh tomorrow and see what they can do for me

Bwgan
Posts: 361
Joined: Wed Oct 03, 2012 19:55 pm

Re: Back wheel too wide

Postby Bwgan » Wed Mar 06, 2013 21:28 pm

Strangely the front wheel won't fit in the forks either

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ugo.santalucia
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Joined: Thu Apr 17, 2008 10:39 am

Re: Back wheel too wide

Postby ugo.santalucia » Wed Mar 06, 2013 21:32 pm

Bwgan wrote:Strangely the front wheel won't fit in the forks either


You might have a very old frame with 90 mm front... There are loads of 90 mm vintage hubs on eBay...


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