Hello I have tried a few searches and it looks like I can go up to 140 without mods on my roadking..correct me if I'm wrong please..and what is a good tire? I have 21" Metz whitewall on front was shooting for narrow whitewall tire in the widest I can go without modding..thanks!

 

Yes, you'll be able to hit 140 Km/h. You're not getting anywhere near 140 MPH on a stock road king. Don't know what the widest tire you can use on that bike is though.

 

Call DennisKirk, they might be able to provide tire recommends. I buy my tires from them.

 

I have an 04 with a 170 on the rear. Took some work but its sweet

Before mods I ran a 150. It was tight but doable

 

Lol by 140 I mean tire size..

 

I've got a 150 on the back of my 2008 roadking. Went with a metzeler marathon 880 last time around and highly recommend it. Excellent traction and ride and so far pretty good wear, and I am very hard on rear tires.

 

Metzler 888 give it a look