back wheel rubbing on frame

[gazza19]

sorry just looked again it says 37-622

 

[Tim Hall]

Excellent. That's a big tyre. Your pictures show the tyre hitting not only the chain stays but the mudguard bridge. Something like a 25-622 is 12mm lower than than the 37-622. That's half an inch. So the "top" of the tyre will be half an inch back from the mudguard bridge and half an inch in from the chain stays.

Have you got another wheel with such a tyre on it you can try before you splash out the cash?

 

[gazza19]

yea ive tried a 27x1 and a quarter 38-630

 

[gazza19]

and it still did it pal

 

[Hacienda71]

It is probably a 700c frame.

 

[Tim Hall]

yea ive tried a 27x1 and a quarter 38-630

Was that complete with a wheel, as it won't fit on your existing one. There are several ways of measuring tyres and the least confusing and most accurate is to use the ISO/ETRTO system. This means 37-622 or 38-680.

The first two digits are the tyre width/height in millimetres. So for your 1 3/8 tyre it's also 37mm. The second three digits are the "Bead Seat Diameter", the diameter of the tyre where it sits in the wheel. This is specific to the wheel, so, for example your 38-630 tyre won't fit the wheel that your 37-622 tyre is on. It also means that your 38-680 tyre is a larger overall diameter than the 37-622. Which is why your 38-680 wheel and tyre combination didn't fit either.

As @Hacienda71 says, it's probably a 700C frame. Or in ISO/ERTRO language it's a 622 frame. (700C is yet another method of measuring tyres)

 

[gazza19]

so how can i tell if its a 700c frame please

 

[Sharky]

Looking at the pictures, it looks like the rear gear hanger is one of those which is just screwed to the frame. It also looks as if the position of the axle could go back another half inch.

Inspect what you have. If you can remove the gear hanger, you might find it could be moved back a bit. If the retaining screw is restricting this, you could remove it and just rely on the axle nuts to keep every thing in place.

 

[fossyant]

Try and get 27x1" - those are huge tyres for a racer.

 

[Tim Hall]

Try and get 27x1" - those are huge tyres for a racer.

No. He's tried 27 x 1 1/4 .Get 622 not 630 (27 inch). And get 25mm tyres, so 25-622.

 

[Dogtrousers]

Looking at the pictures, it looks like the rear gear hanger is one of those which is just screwed to the frame. It also looks as if the position of the axle could go back another half inch.

Inspect what you have. If you can remove the gear hanger, you might find it could be moved back a bit. If the retaining screw is restricting this, you could remove it and just rely on the axle nuts to keep every thing in place.

This is exactly what I'd do.

Although, that said, they are pretty chunky tyres for the bike, so I'd also be looking at getting some skinnier ones like 25s.

 

[Ajax Bay]

Might be worth seeing if @Hip Priest can advise. He renovated a Peugeot Clubman and there are pictures. Certainly doesn't look a lot of space: as @Tim Hall says, in all probability you need tyres with 25-622 on the side (one inch wide in imperial measurement). See this thread:

http://www.cyclechat.net/threads/frame-spacing-drop-out-issue-on-peugeot-clubman.132804

 

[tyred]

700 x 28c is the biggest you can fit on one of these and it's quite tight at that.

 

[Tim Hall]

700 x 28c is the biggest you can fit on one of these and it's quite tight at that.

Keeping in touch with ISO/ERTRO that's the same as 28-622.

 

[raleighnut]

Looks like someone stuck a 700b wheel in instead of a 700c, plus the tyre is way too big. 622x28 is the biggest that frame will take comfortably.

http://www.google.co.uk/url?sa=t&rc...g.html&usg=AFQjCNGatcxC_a414KQ39SeKV1Jdil_LcA