27 x 1 1/4 tyres

Tom Anderson said:

Afternoon all,

[snip]

Quoted message said:

Secondly, where on earth do you get 27 x 1 1/4 tyres these days? The
current one is about ten years old, and desperately needs replacing.

LBS works for me. Reasonable choice too.

Peter

--
www.amey.org.uk

Tom Anderson said:

So, two questions.

Firstly, is there any way to persuade a 700C to fit on a 27 x 1 1/4

No

Quoted message said:

Alternatively, am i likely to be able
to fit modern 700C wheels to the frame?

Yes, but you'll have to drop your brake shoes by 4mm.

Quoted message said:

Secondly, where on earth do you get 27 x 1 1/4 tyres these days?

SJS Cycles and about a thousand other places, even some Halfords stock
them.

Tom
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Tom Anderson said:

Firstly, is there any way to persuade a 700C to fit on a 27 x 1 1/4
rim?

No chance.

Quoted message said:

Alternatively, am i likely to be able to fit modern 700C
wheels to the frame? Will i be able to move the cassette over, or is that
likely to have some equally antediluvian spec?

Yes.You can rebuild the existing hubs with a 700c rim, or buy ready
built ones.Check the gap between the rear drop-outs, newer hubs have a
130mm width.Yours may/will be smaller.If it is a steel frame, new ones
should fit anyway without much trouble.
You didnt say what the cassette is, you can still buy older fitting hubs
to reuse the existing cassette.
Cheapest and easiest way by far is to just buy some new tyres.

Quoted message said:

Secondly, where on earth do you get 27 x 1 1/4 tyres these days? The
current one is about ten years old, and desperately needs replacing.

A good bike shop. Or try St. Johns St, cycles, or any of the other good
online retailers. http://www.sjscycles.co.uk/

Alan.
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To reply by e-mail, change the ' + ' to 'plus'.

Tom Anderson said:

Afternoon all,

BUGGER! I bought a nice new Vittoria Rubino Tech for my ancient Lotus,
only to find it's so ancient, it has 27 x 1 1/4 rims, and so a modern
700C won't fit.

So, two questions.

Firstly, is there any way to persuade a 700C to fit on a 27 x 1 1/4
(ISO xx-630 according to Sheldon; specifically, 28-630, according to
wikipedia) rim? Am tempted to take an angle grinder to the rim and
pare off those crucial 2.5 mm!

No chance, you'll just bugger a decent wheel, even if you had a big lathe to
spin it accurately.
And its nearer 4mm you need to remove :-).

Quoted message said:

Alternatively, am i likely to be able
to fit modern 700C wheels to the frame? Will i be able to move the
cassette over, or is that likely to have some equally antediluvian
spec?

Cassette ?? Most likely it will be a screw-on freewheel. Yes, you could get
a new wheel built around a screw-on hub, but to be sensible you go to a
modern cassette hub.

The hub may be narrower than the current road standard of 130mm. If its
126mm, and a steel frame, you'll spring a 130mm hub into the frame without
problems.

Brakes might be an issue, depends if you have enough drop to make the
difference.

Quoted message said:

Secondly, where on earth do you get 27 x 1 1/4 tyres these days? The
current one is about ten years old, and desperately needs replacing.

Bike shop.
Anything from cheap no-branders for about £7, through Michelin's for under
£10, to Schwalb Marathon's for £15-£20.

Quoted message said:

Meanwhile, i am stuck with a 700C tyre and nothing with a 700C wheel
(number one bike is an MTB). The traditional urc solution here would
be to buy a new bike, of course ...

That is, of course, the preferred solution. Then you could convert the old
bike to a fixed :-)

--
Nigel Cliffe,
Webmaster at http://www.2mm.org.uk/

Peter Amey said:

Tom Anderson said:

Secondly, where on earth do you get 27 x 1 1/4 tyres these days? The
current one is about ten years old, and desperately needs replacing.

LBS works for me. Reasonable choice too.

Heh. I hadn't even thought of that - i assumed this was an ancient size
you wouldn't be able to get tyres for any more. Are bikes with this size
of wheel still being made, or is it just that there are enough old bikes
surviving that there's a market for the tyres?

tom

--
[Philosophy] is kind of like being driven behind the sofa by Dr Who -
scary, but still entertaining. -- Itchyfidget

Tom Anderson said:

Peter Amey said:

Tom Anderson said:

Secondly, where on earth do you get 27 x 1 1/4 tyres these days? The
current one is about ten years old, and desperately needs replacing.

LBS works for me. Reasonable choice too.

Heh. I hadn't even thought of that - i assumed this was an ancient size
you wouldn't be able to get tyres for any more. Are bikes with this size
of wheel still being made, or is it just that there are enough old bikes
surviving that there's a market for the tyres?

No idea I'm afraid, but no shortages either!

Peter

--
www.amey.org.uk

Tom Anderson said:

Peter Amey said:

Tom Anderson said:

Secondly, where on earth do you get 27 x 1 1/4 tyres these days? The
current one is about ten years old, and desperately needs replacing.

LBS works for me. Reasonable choice too.

Heh. I hadn't even thought of that - i assumed this was an ancient
size you wouldn't be able to get tyres for any more. Are bikes with
this size of wheel still being made, or is it just that there are
enough old bikes surviving that there's a market for the tyres?

I don't think there are any made with the old 27inch wheels, its just there
are an awful lot of bikes with those wheels still in use.

I think there are still rims made, so getting new wheels is possible. That
said, I'd look to go to 700c if new wheels were needed on my old bike with
27inch wheels.

- Nigel

--
Nigel Cliffe,
Webmaster at http://www.2mm.org.uk/

Tom Anderson said:

BUGGER! I bought a nice new Vittoria Rubino Tech for my ancient Lotus,

What exactly sort of Lotus? I know of three varieties: CF frames made in
South Africa and ridden by Chris Boardman. Steel (?) frames made in
Taiwan and sold as Lotus-Sport hoping to tag along with the Boardman fame,
and Chinese probably water-pipe frames.

If it's the first I'll take your problem off your hands......

Mike

Tom Anderson said:

Peter Amey said:

Tom Anderson said:

Secondly, where on earth do you get 27 x 1 1/4 tyres these days? The
current one is about ten years old, and desperately needs replacing.

LBS works for me. Reasonable choice too.

Heh. I hadn't even thought of that - i assumed this was an ancient size
you wouldn't be able to get tyres for any more. Are bikes with this size
of wheel still being made, or is it just that there are enough old bikes
surviving that there's a market for the tyres?

I buy Continental Top Touring 27 x 1 1/4 tyres from my local shop,
Howes Cycles in Cambridge. I get the impression that the choice of
brands is getting more limited these days, though.

PaulO

Tom Anderson said:

Alternatively, am i likely to be able to fit
modern 700C wheels to the frame? Will i be able to move the cassette
over, or is that likely to have some equally antediluvian spec?

I have done the same with my old Raleigh Royal. I had to also fit new
brake calipers with a longer reach - Alhongas, bought from SJS, not
cheap but worth it.

I couldn't say about the cassette, but that's a hub-type issue rather
than a rim-size issue. I can't imagine any practical reason why you
couldn't in theory have a 27" rim with the latest 10-speed Dura Ace
hub... However, I only ever had 27" wheels with screw-on freewheels and
moved over to cassettes when I changed to 700Cs. Fortunately, the rear
dropout spacing on the Royal was fine for modern hubs.

Quoted message said:

Secondly, where on earth do you get 27 x 1 1/4 tyres these days? The
current one is about ten years old, and desperately needs replacing.

I can't remember, but the lack of choice was one of my reasons for
changing the wheels.

Quoted message said:

Meanwhile, i am stuck with a 700C tyre and nothing with a 700C wheel
(number one bike is an MTB). The traditional urc solution here would be
to buy a new bike, of course ...

My last tyre bought for a 27" wheel was a Conti Hamsterskin, which ended
up having less than 200 miles use before I switched. I think it may
still be knocking around in the garage somewhere - if I can find it,
might you be interested in a swap deal? I'd quite understand if you
aren't - my tyre has been in storage for the best part of two years, so
it may not be in ideal condition. I don't really know what tyres are
like for perishing.

Sod it, if I find the tyre you can have it gratis if you like.

d.