T63 - good off road, OK road grip 5000km life. Good buy
Sirac - good on tar, pathetic off road. 5000km life. Avoid
Michellin Desert- the one to go for?
I had pair of T63s on my KTM640 for a 3000km all offroad Namibia trip. Excellent off road grip. Almost no wear on the front but the rear lost...