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Technical & Reference Section => Tech and Restoration => Topic started by: Flovalwolfie on September 08, 2015, 10:19 PM

Title: Rear Drop Out Distances
Post by: Flovalwolfie on September 08, 2015, 10:19 PM: Hi

Does anyone know why a NOS frames drop outs would be 100mm instead of 110mm between each other ? The rear wheel won't fit in-between the drop outs. Or are some hubs narrower ?

Thanks for any help
Title: Re: Rear Drop Out Distances
Post by: GS1962 on September 09, 2015, 06:37 AM: I could do also with some help on this very same question. I too just picked up a lovely NOS frame from the early/mid eighties and the rear dropout spacing is only 100mm on that too.
I get that this isn't common but were some frames built this way or is it simply poorly built.......hence NOS?
If it is just an uncommon set up how do you get the rear wheel to fit and stop the freewheel catching the chainstay? If I remove all cone spacers it'll go in wit the freewheel's then too wide. Running Suzue hubs.
Title: Re: Rear Drop Out Distances
Post by: MartyC on September 10, 2015, 02:19 PM: What frame is it/are they?

Sometimes you need to "spread" the rear triangles apart if the gap is a little short, quite common bitd.

This is a good read:

http://www.sheldonbrown.com/frame-spacing.html
Title: Re: Rear Drop Out Distances
Post by: griff on September 10, 2015, 04:24 PM: try twatting it with a hammer
Title: Re: Rear Drop Out Distances
Post by: GS1962 on September 10, 2015, 09:08 PM: Sorted mine.....cold opened the rear out to 105mm and then sprung it open the last 5mm to insert the wheel. Thanks for your help on this one!
:)
Title: Re: Rear Drop Out Distances
Post by: CustardLips on September 10, 2015, 09:38 PM: Quote from: MartyC on September 10, 2015, 02:19 PM
What frame is it/are they?

Sometimes you need to "spread" the rear triangles apart if the gap is a little short, quite common bitd.

This is a good read:

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

That is a good read... nice one Marty. :daumenhoch: