Pro Circuit Racing based in Corona, California, and founded in 1978 by Mitch Payton, is known for two things, building high-quality horsepower and winning races.

The name Pro Circuit is worldwide recognition that you have bought the best, and we strive to get you the very best products for your bike.

From two strokes to four, engine porting, suspension,

and our top-rated exhaust products.

We cover it all.

And just one look at teams like Team 2-2 with Chad Reed, Star Racing, Hardin Huntington,

and of course our own team consisting of Dean Wilson, Martine Davalos,

Blake Bagget, Justin Hill, Darren Durham, and Adam Censarillo.

We make champions.

Visit ProCircuit.com for more info on all the services and products.

ProCircuit, we race.

James Stewart, Toronto, there it is. That was a great ride. Terrible start. But from there, man, you really killed it.

Yeah, I got a horrible start. I got a pretty decent jump. I spun on the plastic. And, dude, I got pinched off.

I think this dust got to me allergies.

I got pinched off and I think I landed on somebody's fender.

Everybody was going back and forth in that rhythm section.

I seriously hate it when they put jumps right out of the first corner.

You know, it's dangerous.

And, you know, we had it this weekend.

And, you know, it's tough, you know, gauging which guy's going to jump, which one.

But I was so far back.

Honestly, I kind of didn't even think I had a chance to win.

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