Bicycles Stack Exchange is a question and answer site for people who build and repair bicycles, people who train cycling, or commute on bicycles. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Does anyone have experience with tires for these rims? I've been looking at tubulars, and many of them (especially track versions) are listed as being 27x3/4 or 27x1, as opposed to 700x19 and 700x22. Specifically, I'm looking at picking up a pair of Continental Tempos but am unsure if the sizing is correct. Is this simply a case of labeling inconsistency, or will the tires not fit my rims?

share|improve this question
This is very weird. I've never heard of anybody making 27" tubular rims or tires. Do any companies besides Continental do this? – Mike Baranczak May 9 '11 at 21:31
I hadn't heard of these either, but google says they exist. These were, from what I can find, popular through the 1980s. – Neil Fein May 9 '11 at 22:04
Neil, 27" tubulars are different from 27" clinchers. But yes, both exist, and neither are compatible with the 700c versions. 630mm BSD vs 622mm BSD (as the Sheldon page tells you). – Мסž May 10 '11 at 1:10
The part that confuses me is that I can find Continental Tempos for sale that are 700x19 and 700x22, but Continental's webpage only states the 27x3/4 and 27x1 measurements. It makes me suspect they're the actually the same tires. – Stephen Touset May 10 '11 at 20:27
They aren't. Look for Schwalbe tires. They are high quality readily available tubulars in 700c sizes, and a variety of prices. – zenbike Jun 20 '11 at 13:14
up vote 2 down vote accepted

To answer my own question, I purchased the tires. It's simply a case of inconsistent labeling. The 27x1 tires are effectively 700x22.

share|improve this answer
Arrrgh! That's great for you, and no doubt is part of the secret tubular lore that us great unwashed don't know (and get tripped by if we get involved). – Мסž May 11 '11 at 23:47
They are actually, according to continental, not the same size. hey are similar, and may not appear different, but they may not stay on the wheel properly, since the internal diameter is not the same as a 700. Unless they were mislabeled as 27" on the website, but say 700c on the tire? – zenbike Jun 20 '11 at 13:18
They say 27"x22 on the tire itself. – Stephen Touset Jun 22 '11 at 18:30

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.