250-500cc Stock size tires for replacements or go to a 130 in rear

I'm going to get some new tires for my WR300, stock is a 140, but there are a better selection of 130's and a few bucks less too.... Also what about the front, I remember reading somewhere someone believe the stock from size 90/90 is to skinny... I'm looking at S12xc as a replacement...

My suspension was dropped off this morning for a rebuild, revalave and spring replacement....
New rubber and the proper suspension, the bike will be even better for his season....

My bike had a 110 on it when I bought it and I have stuck with that size Pirelli XCMS.

I put on a 120/100 and it pulled it fine. Although with my 14 countershaft sprocket my wheel was a little to close and ate up my shock protector

110/100x18 and 130/80x18 are the same size as is 120/100x18 and 140/80x18.

I will have to disagree with you on that one. I purchased the tire and the 120/100X18 was sitting right next to a 110/100 and was definitely larger. This is the first time I have had the tire eat the mudflap.

different manufacturers measure their tires in ways that confuse the dimmensions as far as comparison
wow, that reads odd, well the point is sizes can be not so straight forward
some measure the casing others measure who knows what

I agree with different manufacturers, but I was comparing the same brand for brand.

I've tried many tire, the two i liked best for the rear were the S12xc and MT16.
The fronts I liked the Bridgestone http://www.motorcycle-superstore.com/2/29/392/10194/ITEM/Bridgestone-ED11-Enduro-Front-Tire.aspx
and the Pereli http://www.motorcycle-superstore.com/2/29/392/13824/ITEM/Pirelli-Scorpion-XCMS-Front-Tire.aspx
compared the the S12xc front

This came up a bit ago. Info here: http://www.cafehusky.com/threads/130-too-big-for-the-rear-tire-130-m12-vs-110-mx51-for-ecea-races.27334/#post-244741

yes, 110/100x18's are smaller than 120/100x18's
what I am saying is 110/100x18's and 130/80x18's are the same (110mm carcass = 130mm tread width).
As are 120/100x18's and 140/80x18's (120mm carcass = 140mm tread width).

OOps, I get ya now

So did anyone have any rubbing issue using the S12xc on their Wr's????? If so what size??

I have ran both the 140 and 130 S12XC on my 09 300. Neither one rubbed but it does seem to handle better with the 130...

My 120/100 rubbed because I installed a 14 tooth countershaft sprocket on the stock chain. Had to move the rear wheel up a bit.

Thanks guys. I order the 130