BMW C 400 X and C 400 GT

Photos: BMW

With the C 400 X in 2017 and the C 400 GT in 2018, BMW Motorrad presented two premium vehicles for the mid-size scooter segment for the first time. As an offering in the field of urban mobility, the C 400 X has since impressed with its emphatically dynamic properties, while the C 400 GT as a Tour-ready Gran Turismo variant impresses with an increased range of comfort. To ensure that this remains the case in the future, BMW Motorrad has now sharpened the two mid-size scooters and, in addition to some significant technical optimisations, has also given them new colours and styles.

Powerful single-cylinder drive according to EU-5 homologation with e-gas, new engine management and optimized centrifugal clutch.

The proven efficiency-optimised single-cylinder engine with an output of 25 kW (34 hp) at 7,500 min^-1 and a torque of 35 Nm at 5,750 min^-1continues to serve as the drive. Power is transmitted via a continuously variable CVT transmission and a torsionally rigid powertrain swingarm with innovative swingarm bearings for the lowest possible vibration and thus the best possible comfort. Thanks to current EU-5 homologation, the new C 400 X and C 400 GT remain the ideal partners for dynamic, carefree scooter pleasure.

For this purpose, the engine was equipped with a so-called "electronic throttle grip" (e-gas) and an electrically operated throttle valve as well as a new engine management system. Further optimizations can be found in the form of a modified matrix and coating of the catalytic converter, a broadband lambda sensor, modifications to the cylinder head, a new sensor on the generator cover, an adapted wiring harness and a modified idle control. The idle controller in the airbox is omitted and the idle control is now carried out via a bypass valve of the throttle valve and a turbulence system.

In addition to fulfilling the EU-5 homologation, the revised drive impresses above all with an even smoother and more sensitive throttle response as well as increased idle stability. In addition to e-gas and new engine management, the optimized springs for the centrifugal clutch also contribute to increasing the stability of the engine running. For example, the tolerance of the spring force was limited, the spring force was slightly increased and the engine speed was slightly increased when coupling. Due to the reduced tolerances, the dispersion of the speed during uncoupling is smaller and a too late opening of the clutch – as occasionally known from the predecessor – no longer takes place.

Automatic Stability Control (ASC) with automatic radius calibration and increased control quality. Homologation of the full top speed now also for China.

In the course of the technical revision, the new C 400 X and C 400 GT also received an optimized ASC. Instead of the previously manual recalibration – for example, when changing tires – the new system now has an automatic radius calibration. In addition, the new ASC is designed for significantly lower friction coefficients than before. When driving, this is reflected in more sensitive response and significantly increased control comfort – especially on wet and slippery surfaces. A deactivation of the ASC is no longer necessary.

Previously, the two vehicles were homologated at 129 km/h for the Chinese market. The legal requirements in China have changed and so it has now become possible to homologate the full top speed of 139 km/h there as in the other markets.

Brake system with new front brake calipers and adjusted lever paths of the front and rear brakes. Storage compartment with optimized lighting and USB charging socket.

The brake system of the new C 400 X and C 400 GT has also been revised. Thanks to new brake calipers, the double disc brake system at the front now offers a more stable and clearly defined pressure point as well as improved roll-back behaviour of the brake pistons. This is accompanied by adjusted lever travels for the rear brake on the left and the front brake on the right for a symmetrical braking feel.

A significant increase in comfort is provided by the optimized lighting of the storage compartment (volume 31 l, with flexcase 45 l) under the seat. The lighting is no longer from the side, but for even better illumination from above. In addition to the 12 volt on-board socket, the storage compartment located at the front right is now equipped with a USB charging socket.

Two new attractive colour schemes each, as well as the "Sport" (C 400 X) and "Triple Black" (C 400 GT) style variants.

As before, the new BMW C 400 X and C 400 GT will also feature the unmistakable design language of BMW Motorrad. It is modern, future-oriented and fits seamlessly into the design philosophy of BMW Motorrad. The new mid-size scooters from BMW Motorrad are each offered in three different colour variants.

C 400 X.
• Base color Blackstorm metallic.
• Extra colour granite grey metallic (+ 50,00 €).
• Style Sport (Blackstorm metallic/Racingblue metallic matt, + 200,00 €).

C 400 GT.
• Basic colour Alpine white plain.
• Surcharge colour Kallisto grey metallic (+ 50,00 €).
• Style Triple Black (Blackstorm metallic with matt tapes, + 200,00 €).

All the new features of the BMW C 400 X and C 400 GT at a glance:

• Powerful single-cylinder drive according to EU-5 homologation with e-gas, new engine management and optimized centrifugal booster.
• Optimized idle behavior.
• Automatic Stability Control (ASC) with automatic radius calibration and increased control quality.
• Brake system with new front brake calipers, more clearly defined pressure point and aligned lever paths of front and rear brakes.
• Bench storage compartment with optimized lighting and USB charging socket in the storage compartment at the front right.
• Two new attractive colour schemes each, as well as the "Sport" (C 400 X) and "Triple Black" (C 400 GT) style variants.