Hi,
I have some 27x1.25 inch tires that I barely used and am trying to sell. I know 27inch tires are made for older bikes, but I'm wondering if this size tire works with any other sized wheel, which would make it easier to sell. My LBS told me 700C wheels are compatible with 27inch tires, but some quick internet searching said that's not the case.

Also, I got one flat on the back the first time out after riding over a lot of debris and gravel. But the second time I rode them I didn't have any problems. And there are no tears, rips or holes in the tires. Should I not sell them because of the fluke flat? And if that is the case, what should I do with them?

Thank you

What makes you want to get rid of them?

No. The mating between the tire bead and the rim is precise. A tire made for a wheel of one diameter cannot be used for a wheel of a different diameter.

No.

It's not obvious to me why you think that the flat was caused by a flaw with the tires.

27" tires and 700c tires are not interchangeable. The tubes are, so maybe that's what the folks at the shop meant to say. You'll find a limited market. Maybe advertise here in C&V.

They are only compatible with 27" rims. 700c is slightly smaller so the tires are not interchangeable. 27" tires and wheels will often fit a bike made for 700c tires and wheels and vice versa, if there is enough adjustment to move the brake pads for the different size rims.

Put them up for sale on your local FaceBook Market Place or local Craig’s List! Someone will but them.
Not absolutely certain but I generally consider tires to be specific to rims of the same size. Tubes are a bit more “interchangeable”.
RE: the flat tire issue, check to be sure that there is nothing poking through the tire causing the tube to lose air. If there is nothing that could cause a hole in the inner tube and the rest of the tire is free of damage, you can still sell them (but tell the buyer that you had issues). Bike wheels lose air because of holes in the tubes (unless the wheels employ “tubeless tires”).

If you're lucky you might get a couple bucks for the pair... Find someone that can use them or donate them to your favorite charity. I buy 27" tires at my local thrift shop for a couple bucks all the time, many brand new. Good luck

Most of the people in cycle community are confused with the rim dimentions.The 27" are bigger than the 28" and they aren't compatible.

The other size to be aware of is the ISO size - 27x[whatever] are the same tires as ISO 630 (ie 630mm). I also think shelbyfv was being generous - not sure I would be too trustful of a shop that didn't know the difference between 700C and 27x1.25, and if they were talking about tubes I would expect them to make that clear.

Look for the ETRTO/ISO size designation on the tire sidewall. A 27" x 1.25" tire should be marked something like "32-630" where the first number is the nominal width and the second is the bead seat diameter. Any tire with the same bead seat diameter (630) will mount on your rim, in principle. A particularly narrow tire may object to being mounted on a particularly wide rim, so try to get the width designation close to that of the original tire, but it doesn't have to be exact. The bead seat diameter (630), on the other hand, must match or the tire won't mount.

Anyone know why a 622c got labeled 700c in the first place?

See:

Cliff Notes:
https://www.bike-advisor.com/the-com...re-size-guide/

Organized by rim size: https://www.montaguebikes.com/foldin...zes-explained/

Master’s Thesis: https://www.sheldonbrown.com/tire-sizing.html

How old are those tires? If you sell them you’ll just need new 27” tires unless you buy a 700c wheel set. If you buy new 700c wheels you may also need new brake calipers to accommodate the reach.

BTW, if we're talking about ISO32x630mm tires, they are properly 27 x 1 1/4, not 27 x 1.25.

https://www.sheldonbrown.com/tire-sizing.html

Yes, in math fractions and decimals can interchange, not on bikes.
Found out that when I was 10 years old. Very disappointed.

Well, a bit esoteric when it comes to these tires since as a practical matter there's just the one 27" size.

What brand and model are they?

Where I am, they bring in container loads of used bikes from Japan. A lot of them are 27 inch. New 27 inch tires and tubes are readily available, and inexpensive. So it depends on where you are in the world.

You probably missed the GT Terquesta, 700D also.

difficult to recall, but the details can be problematic.

https://www.sheldonbrown.com/tire-si...ractiondecimal