We actually had a couple of these jet bikes in town a couple of years ago, being ridden around by private owners. I don't know who made them for these guys, but Jay Leno has one of 'em too. I got a call at my shop from one of these guys to fix the brakes on his. Apparently, the brake rotors got so hot during one particularly high speed run they glowed bright red. I was asked to replace the rotors, calipers, and hoses on this bike, but judging from the hodge podge mix of unidentifiable Brembo and Nissin brake parts, I politely declined to have anything to do with it for liability reasons. Scary shit!