Unbreakable and Safe Specification Z: Z1 Custom
PLEASURE's Z1 [900SUPER4]
The base model is a '75 Z1B, quite old but remodeled to be safe to ride. The engine is based on the stock specs, with new cylinders and sleeves. The other parts were replaced. For exmaple, the crankshaft was bent, and the frame was reinforced by Mr. Ito of Borg Motorcycle, who has many years of experience in this field. The swingarm is also 30mm longer than the stock one.
The rear shocks were shortened by 20mm because the footprint was not quite right. In addition, the rear wheel is positioned slightly further back, resulting in a longer overall length. The inside of the stock cast clutch cover was cut to fit a release for hydraulic drive, and the Yoshimura short pipe was modified to avoid interference with the swingarm. That was rewelded and mounted on the frame's main stand mount. The Brembo calipers were also painted black, daring to avoid the look of recent bikes while enhancing performance.
Electrical
The headlight (CIBIE body), meter light, and other lights are fully LED for modern functionality. The left and right master cylinders are made by GALE SPEED.
The meters were overhauled by Craftsbee for a perfect repair. handlebar is Active medium type. And stem is JB-POWER with 40mm offset.
The taillight and blinkers (replaced with small/white lens version made by POSH) are also LED. The fender eliminator kit is made by PMC.
Bodyworks
The seat is a one-off saddle type. The fuel tank is made by Doremi Collection. The black and gunmetal fireball pattern paint gave something significant to the bike.
The steps are made of steel tubing manufactured by Borg Motorcycle, avoiding the sharpness of the machining and silver color.
The sprocket cover is a standard casting, and the inside is machined and fitted with a universal release made by K-Factory for hydraulic drive.
Engine
Based on a 1975 model, the engine was overhauled using 0.5mm oversized pistons and crankshaft alignment. The exterior was also refinished with gun coating. The frame was reinforced in four places by Borg Motorcycle, and a pillion step was added.
Intake & Exhaust
The CR Special Φ29mm is used in combination with a K&N power filter. And the battery was updated to SHORAI lithium-ion.
Chassis
JB-POWER KYB Special Φ38mm front forks and Brembo CNC 4 piston front brake calipers are installed, but gun coated in black to avoid looking too modern.
Brembo CNC rear brake calipers are installed and finished in black. The caliper support is an one-off. And Sunstar trad brake discs were installed.
The Borg Motorcycle swingarm is extended by 30mm, and a Nitron Stealth 20mm shortened rear shock improves stability and looks. JB-POWER Magnesium Forged JB1 2.75-18/4.00-18 wheels are installed.
Gallery
Specifications
Part | Details |
---|---|
Engine | K-FACTORY Clutch Release F TypeⅡ |
Carb / Intake | KEIHIN CR Φ29 Carburetor |
Frame | BORG CUSTOM MOTORCYCLE Swingarm 40mm One-Off |
Brake | GALE SPEED Brake Master Cylinder VRC Series Brembo P4-40RB CNC Brake Caliper P4 30/34 40mm SUNSTAR Front Brake Disc Trad Type Brembo Rear CNC Caliper P2 34 SUNSTAR Rear Brake Disc Trad Type |
Wheels | JB-POWER Forged Magnesium Wheel JB1 2.75-18 JB-POWER Forged Magnesium Wheel JB1 4.00-18 |
Suspension | JB-POWER KYB Special Φ38mm Front Fork NITRON Rear Suspension Twin Shock STEALTH TWIN R1 Series for Lowering |
Steps | BORG CUSTOM MOTORCYCLE Rearsets Kit |
Handle / Steering |
JB-POWER Fork Bridge GALE SPEED Clutch Master Cylinder VRC Series ACTIVE Handlebar Mid Type |
Seat | Saddle Type Seat One-Off |
Bodyworks |
PMC Fender Eliminator Kit DOREMI COLLECTION Steel Tank Set Painted Base |
Electrical |
AS Uotani SPII Full Power Kit SHORAI BATTERY Lithium Ion Battery |
About PLEASURE
PLEASURE provides dress-up parts for KAWASAKI models. Best for ZZR1400, NINJA250R, or NINJA400R!
Original Source of this Article
Heritage & Legends
editor
Hakuyo
A foreigner who rides in Japan, Japanese call this "Gaijin Rider". Third year in the Webike global team. He feels and shares the real bike life in Japan then presents you how interesting Japanese customs are.