1999 xt600e tyre sizing question help please
 

Any help would be great guys and dolls.
I've searced the net and scratched my head. In Turkey we just know how to order a tyre/tire but getting the correct size along w/advice--no.
I am running a contenintal 120 90C-17 (rear tyre) and I will buy the pirelli MT21.
My options are: 120/90 - 17 64R OR 130/90 - 17 68P.
Can I choose either one?
Thanks in advance.

yep.
 

hi.

Yes bouth tiers will fit your bike, the 130/90-17 is just a bit wider, but not so much that it causes any problem.

I have a Michelin Sirac 130/90-17 rear with no problems in clearance. Good luck. Cheers.

a 130 Metzeler Sahara will also be fine as will a TCK80.

Even a 140 will fit (although its a tight one)