New winter tyres. What is...?

mrelston
mrelston Posts: 5
edited August 2007 in MTB general
I'm looking at the Bonty Mud X tyres for the Viking Challenge in October in Leics. Looking on the Bonty website, I'm not sure what the (47/50) in the following 26 x 2.0 (47/50)? Do I have to worry about the tyres fitting the rims or are they standard? I have a Trek 6000

Comments