Biggest Tire to fit on a K9?

k9bdm

Member
Just wondering what the biggest tire you could fit on a k9 with a 21 inch rim would be. With out changing the stock fender or spacers. Gotta get a new tire just wanted some ideas. Thanks
 

woodbutcher

Mr. Old Fart member #145
Staff member
agree with viking. mh90 is what is called for and some have made the mistake of putting on a 90x90 and it hasn't worked. if you go with a wider wheel/wider tire combo, you will have to nix the fender. maybe even have to change up the spacers.
 

Viking

Biker
Whats the thoughts on the front tire how big without changing the stock set up
Just like Tom suggested, MH-90, bigger than that and you will rub. Not only rub, but it will look silly as well on your stock rim. If you're afraid of not enough grip then go with Metzelers, I am scraping mine on both sides in the rain and still have no understeer of any sort.
 

liferider

Looking forward to retirement
What about the speedometer? My Chopper speedometer works off the front tire, if you go bigger as in taller, you will be off.
 
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