100-MPH quadzilla: Duncan Racing Suzuki LT525R: the Corvette of quads.

When most people think of a big two-stroke, Yamaha's Banshee 350 comes to mind. But Suzuki's LT500R, manufactured from 1987 to 1990, remains the biggest and baddest, mass-produced two-stroke the sport has ever seen.

"The open class for motocross motorcycles was established with the big 500cc singles and the LT500 quad developed a huge cult following," explains Duncan Racing's Loren Duncan, who modified this 1990 LT, which is in his personal stable of machines.

"Other than Honda's TRX250R, no other older quad generates that kind enthusiasm," he said. Loren ...

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