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. Generally known as the KZ1000MK-II in some markets, the machine had stunning new “edged” styling, however that wasn’t the one improve. The crank was rebalanced, with bigger journals for higher sturdiness, and the cams have been hotter, the carbs bigger, and the airbox and silencers each tuned.
The outcome was a major bump in peak energy: 93 bhp at 8000 rpm. To compensate, Kawasaki additionally beefed up the headstock and adjusted the steering angle barely. Taken collectively, the adjustments have been substantial sufficient to warrant the Mark II designation, and the bike was successful within the showroom and on the circuit.
“When the Z1000MK-2 made its debut within the AMA superbike race championship, Freddie Spencer, who was nonetheless a highschool pupil, immediately gained 2 races. His successors, Eddie Lawson, and Wayne Rainey’s exceptional outcomes are recognized at this time as the start of the golden age of Kawasaki’s superbike racing.” –JB Energy
Whereas many people miss the design and character of those 70s air/oil-cooled massive fours, the chassis engineering, suspension, brakes, and tires of the period had not advanced as shortly because the powerplants that drove them. That’s the place a males like Japanese grasp Hiroyuki Nakamura of AC Sanctuary have stepped in, creating gorgeous restomods that mix old-school energy and magnificence with trendy tech.
We’ve lined a number of of Nakamura-san’s RCM (Radical Customized Manufacture) builds up to now, however this one is exclusive in that it’s a brand new remake of a construct greater than a decade outdated.
“This RCM-265 Z1000MK-II was manufactured round 2012 and was delivered to an proprietor residing in Okinawa Prefecture. Making an allowance for the damage and tear on the bike over time, the proprietor determined to make the leap and do a significant remake.”
The bike was introduced again to the AC Sanctuary workshop, the place it was utterly overhauled…with some important upgrades.
“To begin with, the proprietor wished to transform to a solo seat, and together with that, the angle of the seat rail has been modified.”
The rear shock mounts have been moved ahead, for extra aggressive dealing with and to permit fitment of the solo tail part.
On the identical time, the unique tank was swapped for an aluminum but, and the bodywork was repainted in a sweet lime inexperienced with carbonlike graphics.
Subsequent up was the engine, which was utterly disassembly and rebuilt with bigger Pistal Racing pistons (1105cc / 11:1 compression), Internet Stage 1 cams, and a 6-speed transmission. The massive four-cylinder breathes via Yoshimura TMR carbs and a trick hand-bent titanium exhaust courtesy of Nitro Racing.
To haul down the inexperienced monster, Brembo brakes have been fitted, and the bike is rolling on a set of 17-inch OZ Racing wheels designed for the ZRX1200, clad in Bridgestone S21 rubber (120/70-17 F / 180/50-17 R).
On the take a look at experience, Nakamura-san mentioned the bike feels utterly totally different from earlier than — far more dynamic — however that isn’t the one manner this bike has bike has been improved.
“Nevertheless it’s not nearly dynamic efficiency. For instance, for practicality on the road, a brand new accent compartment has been added to the one seat. There’s a plate that may be simply opened and closed on the rear backrest half the place you sit…the big area inside the one seat can be utilized as a cupboard space for small objects.”
Nakamura-san says that his workshop doesn’t underestimate such advantages for riders, as they need RCM homeowners to proceed using their bikes for a very long time. Clearly, this fortunate proprietor rode his construct a lot over the last decade that it was due for an overhaul, and the bike has been remade and reworked right into a machine he can proceed to get pleasure from for years to return.
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