When we were talking to Brad Peterson about his XR750 street tracker a month ago, he let slip that he also had a TZ750 in his garage. And it too was street legal.
An explosive Yammie two-stroke with classic flat track good looks is too hard to resist, so we just had to show it. But we?re not sure if we want to ride it: Brad may have balls the size of church bells, but we don?t.

The TZ750 was one of the most extreme flat track racers of all time: it was banned after one race win in the mid 70s, and Kenny Roberts would hit 145mph going down the straights.
Steve Baker was another rider who wrestled with the TZ750. ?One of my buddies showed me a picture of Steve Baker?s original dirt tracker, and said that a TZ750 would make a crazy street tracker,? Brad recalls. ?That one picture, which is still pinned to my garage wall, started this adventure.?
This TZ750 is built around a replica of a Champion Racing frame. And it?s not any old replica: the original Doug Schwerma design has been replicated and built by Jeff Palhegyi, a man with a very solid reputation in the twin worlds of motorsport and Yamaha tuning.
?I don?t have enough luck to ever come by one of the original six Champion-framed TZs,? Brad admits. ?So putting together a replica is as good as it?s going to get for me.?

Nestling in that frame is a 1977 TZ 750D motor built by Scott Guthrie Racing, a company that has set over 380 land speed records. (This particular TZ motor owns several records itself, in other ve...