info needed on tyre size

[jack shepherd]

my friend has a terrain matterhorn mtb, and wants to know if he can fit wide continental mtb tyres to his bike, which has the narrower type of mtb tyre. can anyone help

 

[Mo1959]

If he has a look on the wheel rims there is usually a small sticker somewhere saying what width the rims are, then have a look about three quarters way down this web page and it will give an ideal of the width range that will fit the rim in question.

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