[Marvelous Engineering (Kawasaki GPZ900R)] Selecting and Building Parts for the Ninja’s Future [Custom Machine]

This is the No. 2 motorcycle mentioned in the article. As you can see from its normal look, it is used by Orime-san mainly for city riding and touring.

Now, let's take a look at the details of the first model. The screen is a new Marvelous double bubble type (available in both clear and smoked versions as shown in the photo) that is designed to provide an ultra-clear view and has a high center section to maintain the Ninja-like style. It is fitted to the front cowl.

The cockpit makes use of the four gauges, which Orime says are "my favorite part of the Ninja" and are easy to see even when face down. It is equipped with a STACK tachometer, an air-fuel ratio monitor that fits into the voltmeter, and a Q-STARZ lap timer. The hollowed-out top bridge is a McCoy variable offset type.

In order to ensure sufficient steering angle, the standard box type left and right switches are not used, but rather a compact MotoGP type.

Ninjas often have an oil cooler installed under or in front of the enlarged radiator. Orime tried out various options and concluded that this front light section was the best. The radiator is fitted with a new dividing radiator guard that protects the core while maximizing the cooling effect.

This motorcycle is equipped with a ZRX1200R (1164cc) engine, a 6-speed transmission for the ZRX1200DAEG, connecting rods with WPC/DLC/mirror finish, and an Advantage ST-1.5 cam. The carburetor is a TMR (φ38mm) for better acceleration at medium speeds and above. The slider is a new Active 2-piece type.

When replacing a successor engine such as a ZRX1100/1200 with a GPZ900R, the rear hanger can be used as is, but the front side needs to be considered. With a GPZ-R engine, it can be mounted directly to the cylinder head, but for models that do not have this, such as the ZRX, a down tube is attached and the bolts are fastened there as well. When replacing a successor engine such as a ZRX1100/1200 with a GPZ900R, the rear hanger can be used as is, but the front side needs to be considered. With a GPZ-R engine, it can be mounted directly to the cylinder head, but for models that do not have this, such as the ZRX, a down tube is attached and the bolts are fastened there as well.

It is recommended to change the ignition unit to Uotani SP2 like this motorcycle, or TG Nakagawa HIR. Even if the appearance of the ignition unit and coil remains the same, there are many cases where the inside gradually deteriorates and causes malfunctions, so it is important to be careful.

The fuel tank is now made of aluminum and has an inner tank cover made of FRP (both manufactured by Speed ​​Tech). The rear end of the cover has been moved forward by 10cm, the seat rail has been moved forward, and the accessories placed there have also been moved so that "it now sits on the rear shock, increasing the amount of information coming from the rear."

For the front, it is important to first make sure that the fork width and tire grip are balanced, and that the tires are maintained and working properly. The first model has a φ43mm Ohlins RWU with a monoblock Brembo 4P + Sunstar disc + Gale Speedmaster, but it is not necessary to go this far on public roads.

The swingarm is a wheelie, the wheels are MAGTAN JB4 (3.50-17/6.00-17), the tires are Dunlop D213GP (120/70ZR17･200/60ZR17). The footpegs are made by Nitro Racing. The titanium 4-1 full exhaust is a Marvelous conical goldie, which matches the Ninja well.