After days of searching for a good off road tyre I've finally found out that tkc 80's now do a 120/70/17. This means supermotos and duel sports finally have something a bit better than the mt 60 and distanza. Only thing is they don't do a rear at 160/60/17, think the closest is a 150/70/17 but not sure if that would fit good or not. Does anyone know off hand what different sizes you can use on the rear other than the standard 160/60/17.???? And could you use any different size 17's on the front without having to modify???

http://www.cycleworld.com/wp-content...duro-Tires.jpg

Definitely a cool looking tyre !!!

Any new info on this topic since I am interested in fitting my XT660X with off-road tires?

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Mods on my XT660X so far:
Yamaha XT660X Skid Plate
Yamaha XT660X Hand Guards

My bikes:
https://www.youtube.com/watch?v=IvNi...yguUc1Y-moBo9Q