More power, more Uphill Flow: Performance Line CX is increasing in strength

Stuttgart/Reutlingen – Conquer technical trail sections, tackle steep ascents with ease, and constantly test your own limits. For passionate MTB riders, Bosch eBike Systems is adding another dimension to the trail experience. From July 2025, eMTB enthusiasts can increase the performance values of the Performance Line CX (BDU384Y) in the eBike Flow app and customize them to their personal setup. In the new eMTB+ mode, this power is delivered with sensitive precision exactly when the rider needs it. The Kiox 400C display, the highly sensitive sensor technology for eBike ABS and eBike ABS Pro, and a customized eShift setting complete the new features in the Bosch eMTB ecosystem.

More power for the Performance Line CX – individually adjustable

The Performance Line CX is becoming even more powerful and adaptable. eBike riders can individually increase the performance of their drive unit via a software update in the eBike Flow app. A slider can be used to adjust the maximum power from the default value of 600 watts (W) up to 750 W, while the maximum torque can be increased from 85 Newton meters (Nm) to 100 Nm and the maximum support up to 400%. This gives eMTB riders a noticeable increase in power for particularly steep and technical uphill trails.
The amount of power actually utilized is left up to the rider within the framework predefined by Bosch. It is important to bear in mind that higher values put more strain on the mechanical components and also affect the range – the more power, the greater the wear and the shorter the ride. The performance upgrade for the Performance Line CX can be downloaded free of charge over-the-air to eBikes with the current Performance Line CX (BDU384Y) after manufacturer approval for the respective eBike model from July. Bicycle manufacturers set the maximum values within which users can adjust their performance values.

Maximum dynamics and control: The new eMTB+ mode

The newly developed eMTB+ mode, which bridges the gap between Race and eMTB mode, offers greater dynamics and control. Depending on the rider's input, eMTB+ mode adapts support with up to 400% of rider power. Extended Boost can be controlled as sensitively as in eMTB mode and can develop the same maximum overrun as in Race mode – which is only available in conjunction with the Performance Line CX-R. Dynamic Control ensures full control of the power delivery. On demanding trails with changing surfaces and tire grip, the sensor technology recognizes the conditions and ensures a balanced and smooth power delivery. This keeps riders in the flow and the riding behavior of the drive unit confident, dynamic, and fully controllable. While eMTB mode in the basic setting is optimized for touring and a longer range, eMTB+ mode scores points for performance and trail fun. Riders who want to customize eMTB and eMTB+ mode according to their personal preferences can fine tune the various performance values in the eBike Flow app.

eMTB riding is part of our DNA. We enable eMTB riders to live out their passion to the full – with optional additional power and even more customization options for different riding situations and needs. The increased performance values of the Performance Line CX in combination with the new eMTB+ mode offer even more power and agility on demanding trail rides.

Claus Fleischer, CEO of Bosch eBike Systems

“eMTB riding is part of our DNA,” says Claus Fleischer, CEO of Bosch eBike Systems. “We enable eMTB riders to live out their passion to the full – with optional additional power and even more customization options for different riding situations and needs. The increased performance values of the Performance Line CX in combination with the new eMTB+ mode offer even more power and agility on demanding trail rides.”

Protected in the frame, all ride data at a glance: Kiox 400C display

Power, cadence, heart rate, elevation, and more: eBike riders want to be able to view the most important ride data live on challenging rides. The new Kiox 400C displays these values dynamically without manual intervention during the ride – and is a display and control unit in one. It is permanently and seamlessly integrated into the top tube of the eBike. This protects it from mud, knocks, and bumps while keeping the cockpit tidy.
The dynamic screen for the Kiox 400C is preset so that riders can keep their hands on the handlebars at all times. The displayed data changes automatically in this setting – depending on the riding situation. For example, the elevation covered is displayed when riding uphill, and the speed when riding downhill. The various screens can be customized in the display configuration of the eBike Flow app. The tactile buttons also allow the display to be operated manually. In addition, the Mini Remote ensures safe and convenient operation directly from the handlebars – including control of lights, Walk Assist, and the Hill Start feature.
With up to 1,000 cd/m², the razor-sharp display shows information and automatically adjusts to the surrounding brightness, remaining easy to read and glare free even in direct sunlight. In addition, the navigation display enables precise route guidance so that eBike riders can easily find their way from trail to trail. Another clever feature is the protected USB-C charging socket on the Kiox 400C, which can be used to power external devices such as smartphones.

Even better control when braking: Optimized Bosch eBike ABS and Bosch eBike ABS Pro

High riding stability on the trail and powerful braking without the front wheel skidding: Bosch eBike ABS and Bosch eBike ABS Pro allow eMTB riders to fully focus on the riding line. They can focus better on the trail, ride more precisely, and concentrate less on braking. The ABS software has been further optimized to regulate the brake pressure even more precisely. A new sensor in the drive unit also measures the inclination of the eBike more accurately, allowing the eBike ABS to calculate more precisely when a crash over the bars could be imminent. In this way, Bosch eBike ABS can further reduce the braking distance. The new integrated sensor also enables a cleaner design without a sensor disk on the rear wheel.

Focus when riding, composure when coasting: M+ with eShift

A situation many eMTB riders will be familiar with: When they start pedaling again after coasting for a while, the last gear engaged is no longer suitable for a smooth start – either it is too hard or they feel a lack of resistance. M+ extends eShift from Bosch eBike Systems to include the “auto-shift” variant. When coasting, M+ automatically shifts to the right gear with eShift. This keeps the rider fully focused on the trail – allowing them to really push themselves on next pedaling section. On uphills and while pedaling, eMTB riders with M+ stay in control and shift gears manually. eShift ensures an optimum gear on the downhill when the rider isn't even thinking about it. M+ will be available from fall 2025 in combination with TRP E.A.S.I. A12 as part of an over-the-air update.