1978 Yamaha XS750 Special

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This one was plagued by the most gremlins by far. Worth the trouble, though. Commissioned by advertising art director Adam Stockton in the winter, this antique triple has one of the most devilish exhaust notes ever. Jetted with pods and custom 3-into-1 straight pipe, it's got power for days. Technically a Yamasaki, the front end was snagged from an '05 Kawasaki ZX6R (Ninja 636) which dramatically changes the stance and attitude of the beast. Stockton's bike was the first to incorporate the perforated metal side covers that let you get a hint of what's behind them — in this case, not much. Just a tiny battery in a custom welded mount. Above it, the underseat electronics tray that keeps the unpretty stuff from view. Who says shaft drives can't be cool? (Photos: http://www.adamewing.com )

1979 Yamaha XS650 Special

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Meet Lefty Lucy. A compact, scrappy little miscreant — much like her owner, Richmond, VA art producer Cindy Hicks. Lucy rides on a front end modified to use an 18-inch XS400 front wheel. That, along with the lowest of rear shocks is a big help for the sub-five-foot Miss Hicks. It sports custom side panels, seat and paint job that are retro beyond 1979. Powdercoated fork sliders, wheels and mufflers make it very black. Except for the red, I guess. Jetted Mikunis, free-flowing exhaust and pods keep bike and rider happy. Clip ons mounted above the top yoke make for nice lines and a comfortable riding position. Long live Lucy. (Photos: Adam Ewing).