I finally settled on a pair of Dunlop 952s for my RMX, very impressed after first ride. While is was looking I found a guy on ebay selling Pirelli MT-320 Tyres 80/100-21 100/100-18 Would the 100 section rear be too small for a 250 2 stroke?? Are these a decent tyre otherwise. They are going brand new for $100 AUD a pair, brand new. Damn cheap. I think the bloke is pulling them off TTR's when they go thru compliance and getting what he can for them.