Tyre Sizing

[Jim77]

How do I know the maximum size for a tyre that will fit my bike?

The rims are 700c so I know the first measurement. But how do I know what the second is? My current tyres say 700 X 28C on them. But could I get bigger ones on? Does the second figure represent the depth of the tyre or the width of it? Also is the measurement in mm?

Thanks.

 

[Noodley]

Here you go, everything you don't need to know about tyres:

http://sheldonbrown.com/tire-sizing.html

 

[Jim77]

wow there is a lot of information there...

 

[purplemoon]

On the subject of tyres, mine are 700 x 40 and whilst in Halfrauds the other day I thought I'd better pick up a spare inner tube. I couldn't see any that were size 700 x 40 so asked the 'young lad' for advice and he said a 700 x 28-38C would be fine.

I took his word for it and bought one but thought I should check with all you wonderful knowledgeable people here that it is actually suitable

 

[Scoosh]

On the subject of tyres, mine are 700 x 40 and whilst in Halfrauds the other day I thought I'd better pick up a spare inner tube. I couldn't see any that were size 700 x 40 so asked the 'young lad' for advice and he said a 700 x 28-38C would be fine.

I took his word for it and bought one but thought I should check with all you wonderful knowledgeable people here that it is actually suitable

[tries not to make this sound indecent]

If you put it in and pump it up, then ride around on it and it doesn't burst - it's OK.
If it bursts - it's not OK.




[fails]