Rear spacing

mcj78

Hi all,

I'm thinking of picking up an old steel frame & then sticking some decent bits on it - i'd ideally love to have one custom built as I like the old style lugged steel frames but unfortunately this isn't gonna be feasible... soooo, on searching classifieds etc. what rear spacing do I have to look out for & are there any other obvious glaring old-new compatibility issues I haven't thought of?

Ta much!
John

Monty Dog

Modern frame spacing is 130mm - 8, 9, 10 or 11 speed, typically late-80s onwards
6-7 speed are 126mm , typically 70s to mid 80s
Earlier and you're looking at 120mm for 5 speed

2000-ish was when it went to 1.125" aheadset - earlier will be 1" threaded fork steerer i.e. quill stem.

Your decision is whether you're going for modern or contemporary parts will dictate compatability

blackhands

Monty Dog wrote:

Modern frame spacing is 130mm - 8, 9, 10 or 11 speed, typically late-80s onwards
6-7 speed are 126mm , typically 70s to mid 80s
Earlier and you're looking at 120mm for 5 speed

2000-ish was when it went to 1.125" aheadset - earlier will be 1" threaded fork steerer i.e. quill stem.

Your decision is whether you're going for modern or contemporary parts will dictate compatability

A bit before 2000 there was 1" ahead as well.

2Phat4Rapha

Have absolutely no connection with these guys other than I met one of 'em at a wheel building event.

http://www.racerrosabicycles.co.uk/

Might not be for you but I really like the business idea.

mcj78

Cheers for the replies - i'd be keeping the componentry fairly modern so I guess i'll be wanting a 130mm rear end, don't really mind whether or not it's 1" or 1.125" but quill stems look better on old frames so i'll probably look for a 1". To ebay Batman!

2Phat4Rapha - yeah I like that business idea, i'll probably end up with a similar end product only with the skint knuckles & oily fingernails from doing it myself!

Cheers
J