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Wheel Diameter: 64cm/25 inch what does this mean? I'm thinking of buying a new bike. but Ive never heard of 25 in wheels. Or is the 64cm a 700c. I've only had 26 in up till now and my knowledge in the cm is next to none. can anyone help me please?

  • Do you have a source for these numbers? These are not standard numbers, but 25 inches is equal to 635mm which just happens to be the other 28" rim size. – ojs Oct 29 '17 at 16:07
  • As with @ojs, I think you need to clarify where you’re getting these numbers from. Can you include a screen shot or photo of the source you found them at? Otherwise we might have to close this as “unclear what you’re asking.” – RoboKaren Oct 29 '17 at 16:12
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    Well, there are two options. Either they're honest and have no idea what they are selling, or they know that they are selling a piece of crap and the shady details are there to discourage anyone who knows anything about bikes from buying and then complaining later. – ojs Oct 29 '17 at 16:51
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    A 26x1.5" tyre is almost exactly 25" due to the oddities of tyre sizing systems. Using that measurement rather than the size stated on the tyre is a clear sign of a product marketed by and aimed at clueless people – Chris H Oct 29 '17 at 18:40
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    Wheel size is a lot easier to understand if you understand that it doesn't make any sense. – Daniel R Hicks Oct 29 '17 at 21:05
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Having a look at the link provided in the comments the wheel make and model is pretty clear. Following a swift Google search the same wheel is advertised on Amazon as a 26".

https://www.amazon.co.uk/Hybrid-Front-Wheel-Knives-Dx3000/dp/6254401010

So, any 26" tyre should fit you fine, although I'd be questionable of the seller, as mentioned in the comments above.

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