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Technical & Reference Section => Tech and Restoration => Topic started by: mivvi on October 05, 2006, 10:42 AM
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My Araya's have 20 x 175 written on them but don't measure 1 and 3/4" wide, am I missing something here? I take it the measurement is in inches? ???
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I think it refers to the tyre size, i stand to be corrected though :daumenhoch:
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bmx wheel measurement is bobbins
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yup I agree with Ruler, you can lay a 20x 1 3/8th rim over a 20 x 1.75!
So I think that Ratty's theory is right, tyre size :daumenhoch:
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So your saying a 20x 1 3/8th rim is wider than a 20 x 1.75 rim?
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diameter is bigger!
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Does this help any ?
http://sheldonbrown.com/tire-sizing.html
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No Way!!! That's crazy talk???? 20" is .....well....20" or your tyres would fall off.
Anyhow, do I have an answer to: Is a 20x1 3/8 (Rim) wider or narrower than a 20x1.75 (Rim).??????
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A 20x1 3/8 rim is narrower than a 20x1.75
However a 20x1.3/8 rim is larger in diameter than the 20x1.75 due to the 20 inches being the diameter when the tyre is on - as the 1.75 tyres are a lot deeper than a 1.3/8
I think this is right and hope it clarifies things :buck2: :D
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Head, nail hit it you have :daumenhoch:
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Ah, that's is now clearer. Its a crazy world of tyre sizes and I wish to never go there again.
Thank you all for your help and San for the link! :daumenhoch:
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a 20 by 1.75 rim is 406mm actually 16 inches
a 20 by 1.3/8 and a 1.1/8 is 451mm 17 and three quarter inces
a sew up is 395 -15 inches inside and 432 =17inches outside
-its all about the added tyre profile to get to 20 inches
-stcik to the etro sizes
the funny thing is, that they fit bigger wheels to mini's and micro's, which i think is hilarious
:LolLolLolLol:
although a 20 by 1.3, is the same rolling radius -with the tyre on, as a sew up
a 406 by 28mm etro tyre is a half inch smaller
-the 400 by 25 on the new redline micro, even smaller