A Classic machine with dedication to excellence: Z1000MkII Custom

• Z1000MkII

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SANCTUARY's Z1000MkII

The air-cooled Z-series models, which still attract many fans, have all been in production for over 40 years. Even Sanctuary, which has produced numerous complete machines called RCM based on the air-cooled Z-series models, has faced increasingly strict inventory conditions over the past 1-2 years, resulting in steadily rising motorcycle prices that have become difficult to afford. Nevertheless, even in this situation, enthusiasts who are truly passionate about these motorcycles are still placing orders, regardless of the high price. This motorcycle is a uncompromising finish that embodies the owner's commitment towards the lofty goal of "providing modern riding performance to the former flagship models."

In this machine, an Ohlins front fork with a clear anodized outer tube, brought in by the owner, was used as an exception to reflect the owner's obsession with the product. Additionally, it was necessary to equip the Z1000MkⅡ with modern performance, such as high-grip radial tires of 17 inches in the front and rear, which incorporate the latest and highest-level technology in the modern sports scene. To withstand these changes, the frame was reinforced, and SCULPTURE brackets and a swingarm were introduced to optimize the changes in the riding posture. Furthermore, Ohlins rear shock absorbers and OZ Racing aluminum forged wheels were installed, and high-end brake parts, such as Brembo calipers and Sunstar brake discs, were generously incorporated to enable free control of the bike even at high speeds. The machine, completed in this way, emits a special presence aimed at the highest level through uncompromising craftsmanship.

Handle

SANCTUARY prioritizes a symmetrical layout inside the cockpit and aims for a simple layout as much as possible. The handle and handlebar end are Daytona's RCM concept.

The clutch and brake master cylinders are chosen from Brembo's RCS radial master cylinder. Although it is widely adopted in the custom scene, it has many advantages such as a reduced pulling force and excellent control due to the direct transmission of the touch feeling.

Engine

The engine has been big bored with a Φ71mm piston from Pistal Racing, increasing its displacement to 1045cc. Additionally, various upgrades have been incorporated to improve durability and safety. Especially noteworthy is the Nobreast high-pressure oil pump which contributes to stable oil temperatures compared to the standard gear type by adopting a trochoid-type pump.

Intake & Exhaust

The exhaust system is made of full titanium by Nitro Racing. Note that the welding marks on the exhaust pipes are due to the weldcraft method, which involves cutting the pipes in a ring and welding them back together.

Chassis

The unfamiliar Ohlins front forks are one that the owner brought in and had stripped of its original paint, then finished with a clear anodized coating. Generally, SANCTUARY does not accept customer-supplied parts due to uncertainty about their history and whether they can perform at an adequate level, but in this case, the owner's request was granted as an exception. This forks are combined with parts from the E×M package, which offers easily interchangeable parts such as the Nitro Racing front fender.

Nitro Racing's rearsets are popular for their simple design that suits any machine or rider's style. They have been chosen for this motorcycle with attention to smooth movement by incorporating bearings in the pivot. The master cylinders are positioned forward to accommodate the rear brake reservoir tank inside the side cowl.

Top-of-the-line brand parts are installed for the chassis to suit owner's needs, including Brembo 4-pot calipers, Sunstar's "RCM Concept" brake rotors, and O.Z. Racing forged aluminum wheels.

The Ohlins rear shock has been installed with a lay-down processing. Although this processing has been a standard procedure for a long time, it is a high-difficulty process that involves creating a new mounting section and welding the mounting symmetrically on both sides. At SANCTUARY, they use dedicated tools to perform this procedure.

The pivot section has a counterbore processing method that cannot be easily replicated with mediocre skills, ensuring a chain line that accommodates a 180-size tire. The SANCTUARY sprocket cover is capable of accommodating changes to a hydraulic type and removing the speedometer.

The Sculpture swingarm was developed to achieve the optimal pull-back angle and length for the 17-inch wheels of the air-cooled Z series. It has been customized with additional stabilizers and racing stand hooks to become a special edition. The chain adjuster is a specially ordered RCM-specific item.

The rear brake is actively used even in racing scenes today. It not only serves as deceleration, but also allows to change the riding posture. To achieve a higher degree of riding freedom, a small diameter brake rotor has been adopted to increase sensitivity, making the rear brake easier to use.

Gallery

Specifications

Part	Details
Carb / Intake	YOSHIMURA TMR-MJN Φ38mm
Exhaust	NITRO RACING 4-In-1 Weld Craft Titanium 3D Exhaust System
Frame	SCULPTURE Cowl & Light Bracket for Z1-R SCULPTURE Swingarm
Brake	Brembo Caliper 4 pot SUNSTAR TRAD TYPE2 Front Disc Rotor SUNSTAR Rear Disc Rotor Brembo 14RCS Radial Brake Master Cylinder Allegri Brake Hose Brembo Rear Brake Caliper 2P NISSIN Brake Master Cylinder Kit
Wheels	O-Z Racing Gas RS-A Front 3.50-17 O-Z Racing Gas RS-A Rear 5.50-17
Suspension	NITRO RACING Upsided Down Ohlins EX-Mode Package OHLINS Rear Shock
Steps	NITRO RACING Rearset
Handle / Steering	DAYTONA RCM Concept Handle
Oil Cooler	NITRO RACING NITRO RACING EARL'S Oil Cooler Kit
Seat	DAYTONA [DAYTONAxAC SANCRTUARY] RCM Concept COZY Seat (COZY Seat)
Electrical	AS Uotani SPII Full Power Kit

About SANCTUARY

SANCTUARY is a custom builder that is good at Vintage motorcycles like Z1,Ninja and KATANA. They sell special parts which were born from trial and error that mechanics had repeated mounting and testing

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