RCM-617 from AC Sanctuary, inspired by Aitsu to Lullaby... Most of us know the story of the Kawasaki Z1. Introduced in 1972, the 903cc UJM superbike was the fastest and most powerful Japanese four-cylinder ever produced at the time, upstaging the CB750 and birthing the iconic Kawasak| BikeBound
RCM-604 by AC Sanctuary... When the Honda CB900F first appeared in 1979, it wasn't available in the States, as Honda was worried it might steal the thunder of the mighty CBX. American riders grew green with envy at images of European riders hustling the 901cc superbike through the winding| BikeBound
Kawasaki KZ1000 MKII from AC Sanctuary... The Kawasaki KZ1000 MKII was the 1979-80 version of the liter-sized Zed. It received some nice upgrades over the previous model, including fresh bodywork, larger carbs, electronic ignition, and thicker frame tubes to improve rigidity and handling.| BikeBound
Z900RS built to AC Sanctuary's tastes... In 2017, Kawasaki introduced the Z900RS, a 109-hp naked retro that recalls the storied air-cooled inline-four Zeds of the 1970s."You remember the 1970s, when things were simple, like frames that flexed, disc brakes that didn’t work in the| BikeBound
A Warhorse Reborn: GPz1100F from AC Sanctuary... In 1981, Kawasaki launched the GPz1100 to recapture the Superbike throne. It would be the most powerful Z1-based machine ever, offering 109 horsepower from the fuel-injected, air-cooled 1089cc engine."The company set out to make this| BikeBound
Final Edition Katana, Radicalized by AC Sanctuary... In 1980, the original Suzuki Katana 1100 rocked the motorcycling world with its angular, space-age design. It was the vision of legendary German designer Hans Muth, who'd been design chief at BMW and responsible for iconic machines| BikeBound
AC Sanctuary gives an original Ninja the Type-R treatment... Introduced in late 1983, the Kawasaki GPZ900R -- aka the Ninja ZX900 -- was the earliest member of the Ninja series, and it changed sport biking forever. While a liquid-cooled 16-valve inline four making 115 hp might not sound th| BikeBound
Kawasaki Z1-R from AC Sanctuary... As everyone knows, the arrival of the Honda CB750 in 1969 kicked off the superbike era. Over the next decade, a two-wheeled arms race between the big four Japanese manufacturers would produce a whole new breed of multi-cylinder superbikes that boasted eng| BikeBound
1105cc Kawasaki KZ1000MK-II by AC Sanctuary... The Kawasaki Z1000MK-II appeared in 1978, largely as a response to the Suzuki GS1000 and Honda CB900F. Known as the KZ1000MK-II in some markets, the machine had beautiful new "edged" styling, but that wasn't the only upgrade. The crank was reb| BikeBound
AC Sanctuary's MKII Missile... In 1979, Kawasaki introduced the KZ1000 MKII, which offered new angular styling and a slight power boost out of the 1015cc DOHC inline four engine, now making 93 bhp. The crank had been rebalanced with larger journals, the cams were fiercer, and carbs were up| BikeBound
RCM-554: 1165cc Zed from AC Sanctuary...The Kawasaki KZ900 was the direct successor of the mighty Z1. At the time of its introduction in 1972, the original 903cc Zed was the largest, most powerful four-cylinder Japanese motorcycle ever made -- a true alpha bike:"With brutish, swooping lines| BikeBound
1123cc Honda Restomod from AC Sanctuary... In 1983, the Honda CB1100F arrived as the company's king sport bike, designed to battle head-on with the 1100-class superbikes from Kawasaki, Suzuki, and Yamaha -- bikes that were a solid second faster in the quarter mile than Honda's outgoing CB9| BikeBound
Possibly the Last: Honda CB1100R from AC Sanctuary... In 1980, Honda unveiled their first-ever homologation special, the CB1100R. Based on the CB900, the single-seat sport bike boasted a 1062cc 16-valve DOHC inline-four producing 120 bhp and was designed for endurance racing, where it made| BikeBound
KZ1000-Powered "A16R 005" from AC Sanctuary... Hiroyuki Nakamura and his team at AC Sanctuary are famous for developing some of the fastest, sexiest restomod motorcycles on the planet. Though they work with many different Japanese superbikes of the 1970s and 80s, their bread and butter is| BikeBound