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Discussion Starter #1
Hey guys i just got a 1999 wr400f and dont have the cash to do the full supermoto wheel conversion. It has knobbies on it now.

What are the widest street tires that i can put on my stock rims.

i saw someone say they had 140/80-18 on the back but those were offroad tires. i just want to go as wide as i can.

I wont be on the track with it till i get the full set up.

Thanks everyone.
fyi the front has a 21 rim
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