German e-bike drive unit manufacturer, Bosch, has launched its performance update 2.0, which offers a more powerful 12A charger, adjustable overrun, a Trick Check feature, and significantly improved performance for the Performance Line CX and CX-R. The brand has also collaborated with Garmin to integrate its smart system Live Data Interface with select Garmin Edge computers, allowing riders to view live data such as power, cadence, and battery levels directly on their devices.
Whilst it doesn’t put the company on par with the likes of the Avinox M2/M2S motors in terms of power numbers or torque, it is a step away from capping the CX and CX-R motors’ capabilities as it was suspected the brand might.
From May 2026, Bosch eBike Systems is offering riders the free performance upgrade 2.0 for the Performance Line CX and Performance Line CX-R, expanding the brand’s dynamic ecosystem. The eBike Flow app can now be used to increase the maximum torque and maximum support to master the steepest climbs with ease, ride technical accents with full control, and overcome challenging trail sections. The intelligent riding software recognises technically challenging situations and automatically delivers full power precisely when it is needed. Combined with the now customisable Extended Boost, the Drivetrain Tensioner, the new Trick Check feature, and the 12A Charger (arriving late 2026), these innovations provide a significantly more powerful and refined package for performance riders.
“eMTB riding means constantly challenging yourself on the trail – and mastering new situations. This requires not only more power, but also intelligent power delivery at crucial moments. That is exactly what drives us in the development of our dynamic ecosystem. We want every update to feel noticeably better on the trail – not just on the data sheet,” says Claus Fleischer, CEO of Bosch eBike Systems.
Performance upgrade 2.0 – a situation-specific peak power for key technical sections
With the performance upgrade 2.0, the smart system from Bosch provides even more torque and support for powerful riding on steep trails, when negotiating high steps, or when cranking through tight bends. Using the eBike Flow app, performance riders can increase the torque of the Performance Line CX and the Performance Line CX-R to up to 120 Nm in any riding mode, with the maximum setting value being defined by the respective bicycle manufacturer. Starting from the basic setting of 85 Nm, there is a wide adjustment range for personalised tuning. In addition, the maximum support can be increased up to a speed of
15km/h, alongside up to 600% support, now provided in certain riding situations.1
Whether tackling a long section of exposed roots, a challenging exit from a hairpin bend, or a sudden steep climb after crossing a stream, the intelligent riding software delivers full power precisely when needed, perfectly tailored to the situation, and precisely regulated.
This functionality relies on dynamic rider input. For those who drive more power through the pedals, the system delivers a decisive boost and rewards that effort with a new sense of achievement. Immediately afterwards, the system adjusts back to an efficient level. This intelligent, short-term power peak reduces wear and tear on components, particularly the chain, cassette, and freewheel, while maximising the range. Using the eBike Flow app, riders can decide exactly how they wish to use this peak support to ensure a natural riding experience with full control.
The performance upgrade 2.0 will be available from 4 May 2026 as a free overthe-air update.
Adjustable Extended Boost: more control and more personalisation
Extended Boost gives eMTB riders the decisive boost they need to overcome obstacles on a trail, even if a full pedal stroke is not possible. The system delivers an intuitive, residual boost of up to two metres. From mid-2026, a new slider in the Bosch eBike Flow app will make it possible to set the length of the overrun for each riding mode. Some modes, such as eMTB, eMTB+, or Race, already have a predefined boost length by default that matches the characteristic of the respective mode.
The system reacts intelligently to the current situation on the trail – shorter and smoother for low drops, longer and more dynamic for high, angular steps. The final amount of overrun is determined by the interplay between app setting, riding mode, and pedal pressure. This results in smooth riding on the trail and full control when negotiating technical sections, making pedal jams a thing of the past. This allows performance riders to customise their setup according to their own preferences, for a precisely tuned riding experience.
Drivetrain Tensioner for maximum control
Bosch eBike Systems is introducing the Drivetrain Tensioner for the Performance Line CX and Performance Line CX-R, bringing maximum control in technical riding situations. The software optimisation closes the freewheel between the motor and rear wheel, reducing the free travel on the pedal to a minimum and eliminating delay whilst pedalling. The result is almost instantaneous traction, even quieter freewheel, and the rider’s input converted directly into precise propulsion.
This direct power transmission enables superior control and noticeably more agile riding behaviour, particularly on demanding sections, such as when starting off on a step or accelerating out of tight bends. In combination with the performance upgrade 2.0, the Drivetrain Tensioner can protect the freewheel, ensure a longer service life, and lower repair costs.
Available from mid-2026 in eMTB+ and Race riding modes via an update through the eBike Flow app.
12A Charger – Faster charging, more time on the trail
True performance on the trail means maximum time on the eBike. That’s why the new 12A Charger now significantly shortens charging breaks. With a charging power of around 500 W, it charges around three times faster than the familiar 4A Charger. A PowerTube 800 can now reach a battery level of around 50 percent in approximately one hour, made possible by modern GaN technology. Since it generates significantly less heat than conventional semiconductors, it enables efficient and intelligent thermal management.
Despite its high performance, the charger is compact, weighs less than 1kg, and fits in a backpack or small bike bag. For performance riders, this means spontaneous recharging, a range buffer before their after-work ride, and more time on the trail instead of at the power outlet.
The 12A Charger is compatible with all Bosch smart system batteries and will be available from the end of 2026.
Bosch Live Data Interface
Whether needing to check current speed, ride in an ideal training zone with precise performance values, navigate with confidence, or just keep an eye on the eBike’s battery level, the new Bosch Live Data Interface allows eBike riders to personalise their riding experience. This allows riders to connect their own devices such as GPS bike computers, or in the future, fitness watches, smart glasses and helmets to the eBike.
With this new functionality, eBikes equipped with the Bosch smart system can connect directly with select Garmin Edge cycling computers to bring ride data together in real time. Bosch collaborates with Garmin as the first company to integrate this functionality, and the Live Data Interface presents an opportunity for further integrations with thirdparty products and apps.
“Ambitious eBikers ride with a highly personalised setup. The eBike should adapt seamlessly to their preferences. That is why we are making our system accessible to third-party providers. We are taking this first step with Garmin and are excited to provide riders with relevant, live data from their eBike directly on their Edge cycling computer,” says Claus Fleischer, CEO of Bosch eBike Systems.
