Got an EBC Revolution trailer, which comes with cheap tyre on it. Decided to replace said tyre. Said tyre says 16x1.75 on it, so I obtain [url= http://www.chainreactioncycles.com/Models.aspx?ModelID=24752 ]ONE OF THESE[/url] in 16in flavour
Tyre is waaaay to big though. On measuring with a tape, the old tyre is 12in internal diameter, the new one 14in.
I just checked and the ERTO numbers differ 305 & 349, but why would I check the rather than the printed tyre size before ordering?
WTF is going off here????
Nobody??
The inner tube is marked as a 16in as well!
Diameter marked is external to tyre peter. Go measure a 26 inch.....although why the tyre is wrong I have no idea, soz....Try ordering a brompton tyre? Or dahon? They are 16 inch.
So why are 2 identically marked tyres different sizes? 😕
As I say....dunno, soz. Try calling Ebc tomorrow?
See also 26" MTB tyre and 26 X 1 3/8 tyre on 50s british bikes. If you want an answer to your question - or as good an answer as you are going to get - then try [url= http://sheldonbrown.com/tire-sizing.html ]this article by Sheldon Brown.[/url]
in the early days of cycling, every country that manufactured bicycles developed its own system of marking the sizes. These different national sizing schemes created a situation in which the same size tire would be known by different numbers in different countries. Even worse, different-sized tires that were not interchangeable with one another were often marked with the same numbers!
Dunno, but CRC once sold me a 650b tyre as a 26"
I'd not use them again for anything other than standard tyres.
Ratadog - that's the explanation crc gave me and they wouldn't pay for return postage.
That is always a lesson that has to be learned for new kids working in a bike shop; that some tyres that are the same size are in fact different sizes. I fell foul of it as a youth.
650B is yet another 26 inch standard, this time a french one otherwise known as 26 x 1 1/2 😯
Crucial number is the ISO ( formerly ETRTO ) number which for 26" MTB is 559
FWIW it took me the best part of a week some years ago to realise that Continental label its tubes for 29ers as 28ers - both 622 ISO - and therefore the tubes I needed were easily available after all.
Dunno, but CRC once sold me a 650b tyre as a 26"
I'd not use them again for anything other than .....
Nowt to do with CRC. Schwalbe label it as a 16in!
Nowt to do with CRC. Schwalbe label it as a 16in!
Aye, but according to Sheldon there are a total of 3 different ISO sizes all called 16 X 1 3/8 plus at least 2 other different 16" tires as well.
Best of British
