switching to XC tyres from road slicks

spudly1979
spudly1979 Posts: 172
edited July 2009 in MTB buying advice
hi, currently riding a GT zum2 hybrid with maxxis road slicks, which are great for on road, but we're getting a bit more adventurous, and after spending a day sliding about i'd really like to upgrade to an xc tyre

the only thing is - currently they are a 26x1.5 tyre - but i can't see any xc tyres with this spec, so will a larger tyre say a 26x 2 or 26 x 2.5 fit my wheel or do i have to fork out for new wheels too?!?
Canyon AM 6.0
At some point i am going to manage to jump one of these things.....