My rear tyre is needing some changing too. So far I have considered the Mitas C02 and the E09. I think the Eo9 is more tarmac friendly due to it's profile, whilst the c02 looks like a motocross tyre. I am not sure where the Rockrider fits in between their current line up though.
Okay just Google'd quickly, found this on the KTM forum:
http://www.ktmforum.co.uk/off-road-endu ... -tyre.htmlQuote:
they don't grip on rock, gravel,roots or in the wet. the only place they work is in deep mud. On the road they are lethal especially when fairly new.
so if you ride around a muddy field all the time go for it, if you ride any where else don't bother. They do last though, compound is similar to that on forklift tyres !