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Focused on Mobility and Durability: GPZ900R Custom

 5 min read

MOTORKID'S YANAGISAWA's GPZ900R

The excellent custom paint job by YF Design. The tail-up by modifying the seat rail, and the black coloring of the aluminum components gave the motorcycle a new look.

By raising the core of performance, the custom is designed to provide the rider wirth a fun time while a long ride, enhancing mobility and durability.

Handle

The master cylinders are both replaced with NISSIN radial pump masters to improve operability. The throttle is replaced with an ACTIVE's high throttle kit for the same purpose.

Intake & Exhaust

ACTIVE's Big Radiator is installed to enhance cooling performance.

The carburetor is replaced with a KEIHIN FCR Φ37mm for owners seeking more power and response.

The exhaust system consists of a NITRO RACING exhaust pipe and YOSHIMURA silencer. These created the owner's preferred sound and style.

Bodyworks

The rearsets are made by FAZE, which were holding reputations for high cost performance. These are designed to provide good shifting and enough lean angle for comfortable riding on winding roads.

Chassis

The front and rear wheels are replaced with Marchesini wheels to reduce unsprung weight. When the front forks are brought from Yamaha XJR1300, the springs are replaced with Ohlins while ensuring stable handling. Incidentally, only the front brake system is strengthened. The standard combination of Brembo 4-pot caliper and SUNSTAR Φ320mm rotor is used to increase braking power, while the master cylinder is replaced with a Nissin radial pump to ensure controllability.

The rear shock is an Ohlins for its high reliability and improved road following performance. Thanks to the front and their Ohlins springs, the handling stability has been achieved.

The swingarm is reinforced by SPEC to increase rigidity. Since the owner of this machine runs mainly on the public street, the swingarm gained sufficient rigidity with just the right amount of bend.

Gallery

Specifications

Part Details
Engine ACTIVE Big Radiator Kit [TYPE-1]
NISSIN Radial Pump Clutch Master
Carb / Intake KEIHIN FCR Carburetor Φ37mm
Exhaust NITRO RACING Exhaust Pipe
YOSHIMURA Silencer
Frame SPEC ZZR1100D OEM Swingarm Set
Brake BREMBO 4 Pot Caliper
SUNSTAR Front Brake Disc Φ320mm
NISSIN Radial Pump Brake Master
Wheels MARCHESINI Wheels 3.50-17/5.50-17
Suspension OHLINS Front Fork Spring (90-98)
OHLINS Front Fork Spring (99-00)
OHLINS Rear Suspension (84-98)
OHLINS Rear Suspension (99-00)
XJR1300 OEM Front Forks
Hakuyo
Hakuyo

editor

Hakuyo

A foreigner who rides in Japan, Japanese call this "Gaijin Rider". 6th year in the Webike global team. He feels and shares the real bike life in Japan then presents you how interesting Japanese customs are.