Old Carlton: Dropout/Wheel Size confusion.

[Nob]

Sounds like someone tried to insert a MTB wheel into the rear……

 

[Frankenorange]

Where do you live? Maybe there is a fellow RBer nearby who could pop over and look at it. All sounds rather odd to me as the frame builder should know about the different dropout spacings and the frame clearly isnt a frame that takes a boost rear hub!

 

[CarltonWorksop]

Where do you live? Maybe there is a fellow RBer nearby who could pop over and look at it. All sounds rather odd to me as the frame builder should know about the different dropout spacings and the frame clearly isnt a frame that takes a boost rear hub!

Sheffield, UK.

The bike is at my lockup, I'll be heading down there shortly so will update with measurements.

Thanks everyone.

 

[bagpuss]

You need to measure the distance on the rear drop outs .
Plenty of advice on line of how to do this .
Sounds like the rear triangle spaci is way out from what you have said

 

[pigman]

Sheffield, UK.

The bike is at my lockup, I'll be heading down there shortly so will update with measurements.

Thanks everyone.

Which area in Sheffield?

 

[Nob]

Tony Butterworths shop was fabulous back in the early 80’s for gear

 

[CarltonWorksop]

Update:

I left the bike last week with the wheel clamped in. Just got to my lockup now and took out the rear wheel. Measured between the dropouts and it’s now coming up as about 135mm. Which is definitely narrower than it was last time I measured it!

Thanks to a previous poster for the handy tip on measuring the axle, I also measured that which comes to around 130mm.

Which, to my untrained eye would seem about right?

So I’m starting to see a potential solution to this mystery. Perhaps the Frame-Builder did indeed stretch it out. Either from a jig, or perhaps putting in a wrong-size wheel as it set from the brazing process. God knows…

Maybe it wasn’t even him but a colleague or something, which would explain his bemusement at the situation too.

So my question now is: does steel comply to being bent to a new shape, or does it have memory and always want to return to the shape it was when it was formed? (I should know this being in Sheffield).

More than anything though, is it safe? Or has the frame been dangerously weakened?

 

[CarltonWorksop]

Tony Butterworths shop was fabulous back in the early 80’s for gear

Believe it or not, there are actually two Butterworth’s bike shops in Sheffield. And they are unrelated. One on the south of the city that I use, and another in Hillsborough I think, on the north side of town.*

*this may be a local urban myth. I’ve never actually been to the latter one. Though I’m pretty sure I’ve seen it driving past…

 

[juvela]

-----

for a smooth running drivetrain it would be best to make a frame alignment check

can be accomplished without any special tools

requires:

length of string

ruler

straightedge of twenty or so inches length

will be necessary to remove chainset & bottom bracket assembly

tutorial here:

https://www.sheldonbrown.com/frame-spacing.html

https://www.sheldonbrown.com/steel-frame-repair.html

a discussion here:

https://www.bikeforums.net/bicycle-...-triangle-alignment-use-sheldon-s-method.html


-----

 

[Nob]

Believe it or not, there are actually two Butterworth’s bike shops in Sheffield. And they are unrelated. One on the south of the city that I use, and another in Hillsborough I think, on the north side of town.*

*this may be a local urban myth. I’ve never actually been to the latter one. Though I’m pretty sure I’ve seen it driving past…

It’s the one near the football ground & spanned 3 floors back in the day with so much stuff that items were stored in the stairs….where mostly I bought my Clement No. 3’s from along with the red clement tub glue. Always had a great collection of Campag record & super record & EA100 Dura Ace kit.