raleighnut
Legendary Member
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As part of Ti they would have had access to 531 tubing, plain gauge 531isn't that light as opposed to double butted stuff.
Frame and fork weigh 4kg
Looking at photos I'm thinking this was a fairly basic tourer, would you agree?
It could have been but sticking a 126 wheel in a 120mm frame and riding it for a couple of years will have the same effect.If the rear is 126mm I would guess that this was cold set at some point.
Conveniently 700c is in between the 2 sizes so a bit of careful brake calliper selection will probably allow them to fit, I did it with my Raleigh City and it allowed me to use some nice Weinmann aluminium brakes instead of the twisted steel ones it came with, not to mention ally rims instead of the rusty chrome ones on the bike when I got it.see if it was built for 26" or 27" wheels
Conveniently 700c is in between the 2 sizes so a bit of careful brake calliper selection will probably allow them to fit, I did it with my Raleigh City and it allowed me to use some nice Weinmann aluminium brakes instead of the twisted steel ones it came with, not to mention ally rims instead of the rusty chrome ones on the bike when I got it.
The overall diameter of a 700c wheel with 28mm tyres on and a 26" x 1 3/8ths wheel tyre combo is about the same I'd say, don't forget there are 5 or 6 wheels called 26" all of which are different sizes.I'm not always convinced about replacing 26" wheels by 27" or 700's. There's a definite difference between the way a 26" bike feels to ride and the way one on larger wheels feels to ride. I was given a cheap "catalogue bike" type 3-speed, which was built with fairly slack roadster geometry but 27" wheels. Whilst it's comfortable enough, and it will get me from A to B, I don't find it handles anywhere near as well, and doesn't feel as nimble, as any of my 26" wheel bikes. It might only be an inch difference, but it does noticeably alter the ride, and not for the better, IMHO.
My rod braked Raleigh is a funny beast; you'd expect it to handle like a tank from it's solid appearance, but it doesn't. It's quite nippy by 3-speed standards due to being 26" and having a relatively short wheelbase.
The frame is 22" centre of bottom bracket to top of seat post. The frame alone weighs 6lb 8oz and the fork is 2lb 8oz, so with your helpful info, it sounds like high tensile steel.I would stick a pair of wheels & tyres in the dropouts so the frame sits in it's intended orientation, with the top tube level and the BB off the ground. That way you will be better able to assess how sporty or slack the geometry is and also see if it was built for 26" or 27" wheels.
As a comparison of frame weights, I have a 23" full 531ST double butted frame that weighs 7.8 lbs with the BB & headset bearings in situ, and a 21" hi-tensile Apollo hybrid frame that weighs 9.6 lbs in the same state.
Assuming your scales are accurate, if your frame weighs 8.8 lbs without the BB in situ, I am inclined to think it's either hi-tensile, or 531 plain gauge in the main tubes at best.
@rogerzilla seems to have done more frame weighings than most, so will probably have a good idea of the likely material - so long as your weight figures are accurate.
................ Leave the upper edge of the slots alone or the wheel may sit askew.