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700mm tube on 27 inch rim?(8 posts)

700mm tube on 27 inch rim?Nostalgic
Dec 19, 2001 7:07 AM
I am completing my latest obsession: the complete overhaul and refurbishment of the old 10 speed I had when I was a kid. I was able to rummage a 27 inch rear wheel in excellent condition and I have an old 27 inch tube inside the 27 inch tire which looks to be in good shape.

I am planning to ride a lot of miles on this bike. Will I be forced to search out 27 inch tubes? Or can I just stretch a 700mm on there without damaging it?
700c- yes, 700mm- is there such a thing?nm
Dec 19, 2001 7:10 AM
Oh, for the love of Pete!jw25
Dec 19, 2001 8:52 AM
The 700 bit comes from the nominal diameter of the wheel, with tire mounted, which is around 27 inches, or 700 mm. Sheesh.
Anywho, to answer the original question, yep, a 27" tube should fit a 700c tire just fine. At worst, you'll have to tuck in a bit of excess, but it should be a very small bit.
Most 700c tubes seem to come with a 27" size range on the box, as well.
Land Sakes!Crankist
Dec 19, 2001 11:25 AM
I think he meant 700 tube, 27" tire.
yeah, that's what happens when you reply to a response.jw25
Dec 20, 2001 8:40 AM
but in any case, the diameter difference is pretty slight, so the tubes should interchange. Tires would be a problem, but tubes, no sweat.
Did you get an answer yet?cory
Dec 19, 2001 11:42 AM
This thing seems to have gone astray...
You can use 700c and 27-inch TUBES interchangeably, no problem. You can't swap TIRES, though, and there's not much range left in 27-inch tires. Nashbar, Performance and many bike shops always have some, but there's little available beyond 1 1/8- or 1 1/4-inch basic road tires. When I was restoring my '70s Peugeot, I checked with several manufacturers to see if they had old stock or tires not listed in the catalogs. Nobody did.
jiminy crickets!!!bud
Dec 19, 2001 1:23 PM
Thanks! I did get the answerNostalgic
Dec 19, 2001 6:15 PM
Thanks to all for answering. I just finished the bike and it is more or less like it was, just much cleaner. Kind of an old new. There's nothing really special about it, having just 5 speeds and being very heavy, but I have a lot of good memories.

When I retrieved the frame, I wanted to do a complete upgrade of the bike and go with 700c wheels with an 8 or 9 speed drivetrain. But the difference was too great for the old brakes, which are in good condition. I figured that I already have lots of light bikes, so why not just rebuild it as it was originally meant to be.

All of the parts, except for the rear wheel, were in excellent condition. It was especially neat to rebuild the BB and front hub - bearings, cups, and cones that haven't seen light in probably 16 years.

My goal is to complete at least one century on it in 2002.

Thanks once more for your answers. Glad that standard tubes will fit the 27 inch tire.

P.S. Sorry that I tend to think in mm.