Designed for Pillion: GPZ900R Custom

• GPZ900R

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Mellows' GPZ900R

In the current motorcycle industry, various genres have emerged and there has been an increase in bikes that specialize in certain areas of performance. However, in the motorcycle world around 1984 when the Ninja or GPZ900R was introduced, this area was still developing. Many riders enjoyed using the Ninja or similar types of bikes to transform them for various genres and continued to ride the Ninja for a long time. This Ninja, like many others, has undergone various measures to address weaknesses, maintenance, and preventative repairs before any problems arise, and has been maintained over time.

The customization was designed with pillion riding in mind, and there were no significant changes made to the step. Parts were replaced as needed, and updates were made to various parts without making major changes to the bike. The front and rear wheels were also replaced, and the front axle was enlarged to ensure stability in corners. As a result of the customization process, it seems that the bike has been finished to a satisfactory standard.

Handle

The windshield is Double Bubble Smoked type by Zero Gravity. Steering stem is by G-STRIKER to accommodate front 17-inch Φ43mm forks and bar handle. The gauges are stock with the addition of YOSHIMURA Progress Meter.

Bodyworks

The seat has been machined and the grab bars have been left in place to adapt to pillion riding. In general, it's one that retains the Ninja's typical panache and all-round feel.

Engine

Both radiator and oil cooler core guards are made by PENSKE.

Intake & Exhaust

The carburetor is MIKUNI TMR Φ36mm and the fuel cock is by PINGEL. The fuel tank and exterior components are stock.

Since a pillion step is assumed, a Yoshimura Titanium Cyclone exhaust is installed, which can be installed with the stock & pillion step.

Chassis

Front forks are Ohlins upright for ZEPHYR 1100. The front fender is for a ZRX. Front brake consists of Brembo cast 4-piston caliper and SUNSTAR Cstom Disc (Φ310 mm).

The rear shocks are Ohlins for 18-inch wheels. Rear brake consists of Brembo Cast P2 34 calipers mounted with KEINZ supports and SUNSTAR Premium Racing Disc.

Wheels are ZZR1100D's, 3.50-17 for the front and 5.50-17 the rear. The front axle diameter has also been increased to improve cornering stability. The drive chain has been updated where necessary, including conversion to 520 size by EK.

Gallery

Specifications

Part	Details
Engine	PENSKE Radiator Core Protector PENSKE Oil Cooler Core Protector
Carb / Intake	MIKUNI TMR Φ36mm Carburetor PINGEL PERFORMANCE PRODUCTS High Flow Fuel Cock
Exhaust	YOSHIMURA Machine Bending Titanium Cyclone 4-1
Brake	BREMBO P4-40R Axial 4P caliper SUNSTAR Custom Type Front Disc Rotor BREMBO P2-RS84 2P Rear Caliper KEINZ Rear Rigid Caliper Support / For Brembo 84mm
Wheels	KAWASAKI ZZR1100(D) Stock Wheel Processing Diversion 3.50-17 KAWASAKI ZZR1100(D) Stock Wheel Processing Diversion 5.50-17
Suspension	OHLINS Upright Front Fork RWU for ZEPHYR1100 OHLINS S46HR1C1LS for GPZ900R 18inch Rear Wheel
Handle / Steering	ZEROGRAVITY Windshield [Double Bubble] G-STRIKER Steering Stem YOSHIMURA PRO-GRESS2 Multi-temp Meter
Seat	Mellows Original Seat

Original Source of this Article

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