A project dream for 30+ years! At the Cologne Motorcycle Show in late 1982, Yamaha unveiled their new RD350 YPVS, featuring the breakthrough Yamaha Power Valve System, which utilized a servo motor to change the […]
Tag: Two-Stroke
Short Track Weapon: Yamaha YZ250 Flat Tracker
Swedish champion Ake Jansson builds a two-stroke tracker! In 2001, Motocross Action magazine claimed the ’01 Yamaha YZ250 was the world’s best 250 production motocross machine. The engine was the highlight, a liquid-cooled mill that […]
Small-Bore Speeder: Honda MB5 Land Speed Racer
Tim Klostermann of Economy Chopper sets out to beat the M-AG 50cc land speed record… For one year only (1982), the US market received the Honda MB5, a 50cc reed-valve two-stroke with a five-speed gearbox, […]
Triple Black: Kawasaki H2 by Vinny Borbone
A vintage racer builds one bad two-stroke street bike… The Kawasaki H2 was one of the most uncompromising motorcycles ever produced, a 750cc two-stroke “Widowmaker” triple that was loud, smoky, crude, and scarily fast, cutting […]
Mini Missile: Kawasaki “KV250” Two-Stroke Triple!
Ralf Kraemer shoehorns a KH250 triple into a KV minibike! In the late 60s, the Honda Monkey took the market by storm, becoming a sensation among riders both young and old. In 1971, Kawasaki released […]
RSD Water Buffalo: Suzuki GT750 Tracker
Roland Sands Design builds a 750cc two-stroke tracker for Travis Pastrana to race! At the 1970 Tokyo Motor Show, Suzuki unveiled the GT750, a 750cc liquid-cooled two-stroke “super sporting roadster” that would become a cult […]
800cc Widowmaker: Kawasaki “KH750” Triple
An 800cc, 120+ hp Triple from Ralf Kraemer… In the late 1960s, Kawasaki wanted to create a 500cc two-stroke motorcycle that could boast 60 horsepower and a 1/4-mile time below the 13-second mark. The result […]
Box of Dynamite: Yamaha RD465LC Restomod
A modernized “Elsie” with a dyno-proven 103.7 bhp! The Yamaha RD350LC was the successor of the RD400, featuring the same bore and stroke as the original air-cooled RD350 (64x54mm) but with liquid cooling and a […]
Vintage Flat Track Weapon: Bultaco Astro 360
The Bultaco Astro 360 was a unique machine, a purpose-built Spanish flat-tracker developed to win on dirt ovals across the United States, from small fairground tracks to the Grand National Championship series. Developed from the […]
Mythic 750 Triple: Denco CR90 Restomod
Street Dragster: Modernized tribute to the mythic Denco CR90… The Kawasaki H2 remains one of the most notorious motorcycles in history, a 750cc two-stroke triple that became known as the “Widowmaker” — a moniker that […]
