Help with tyre sizing needed!
TheNorthernTrain
Posts: 1,049
Hi
My housemate has a roadbike with 27 x 1. 1/4 tyres however he needs a new one and we are struggling to make sense of the sizing things. I read an article by sheldon brown and that didn't really help.
The confusion is that most places are advertising as 700 c or 700 x 25 etc.
In this measurement system what measurements should he be looking for.
Cheers
My housemate has a roadbike with 27 x 1. 1/4 tyres however he needs a new one and we are struggling to make sense of the sizing things. I read an article by sheldon brown and that didn't really help.
The confusion is that most places are advertising as 700 c or 700 x 25 etc.
In this measurement system what measurements should he be looking for.
Cheers
0
Comments
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You nee a 630-32 for an exact replacement. I would explain the logic behind the sizing , but there isn't any. Try sheldon brown for an explanation.
http://sheldonbrown.com/harris/tires/index.html0 -
