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Bosch Performance Line CX Gen 5. Quieter performance, less weight and smarter sensors for 2025

Featuring quieter performance, less weight and smarter sensors, expect to see the Bosch Performance Line CX Gen 5 motor fitted to a lot of e-MTBs for 2025 and beyond.

Following on from the success of the GEN 4 Performance Line CX motor, which earned a reputation for its power, responsiveness and overall reliability, is the all new GEN 5 Performance Line CX motor. From the outside, there doesn’t appear to be any obvious points of difference with the new Bosch Performance Line CX Gen 5 motor. The overall shape and size is pretty similar, and it’s said to produce the same 85Nm and 600W of peak power output as the current GEN 4 drive unit, however the real innovation is on the inside, which equates to a whole new riding experience.

GEN 5 Performance Line CX product innovation includes:

  • Improved ride dynamics and agility thanks to enhanced sensor technology
  • Less noise and reduced weight
  • The Purion 400 display and the PowerTube 600 and PowerTube 800 batteries complement the new drive unit

 

Lighter, quieter and smarter

The new Bosch Performance Line CX motor, retains the same 85 Nm of torque and 600 watts of power,  but with improved sensor technology, where the motor responds precisely to pedal input, allowing cyclists to tackle any challenge smoothly and with control, which will be a huge advantage to eMTB riders.

Inertial sensors (IMU) measure acceleration and rotation speeds in six dimensions, and recognise inclination and tilt angles as well as vibrations experienced by the bike and rider. This means that the eMTB “knows” how steep the ascent is and whether e-bikers are on a forest path or a root-covered trail. With the new hill start assist you can ride off in relaxed manner and with full traction. Thanks to the sensors, the eMTB knows how steep the slope is and provides optimum support. The walk assistance feature, also has a new capability of the drive unit adapting to the pushing speed the off board rider is inputting.

The new CX motor is quieter and lighter than ever. When riding downhill, the external drivetrain (chain, chainring, cassette) is decoupled from the internal drivetrain (freewheel, gearbox, motor). This further reduces the mechanical noise generated by comparable drive units on the trail. The rider’s full focus then soley remains on the trail and the surrounding nature. The weight of the Performance Line CX has also been reduced by around 100 grams compared to the previous version. Furthermore, its magnesium housing can withstand the toughest conditions. A black powder coating protects against stone chips and damage as well as corrosion.

Bosch PowerTube 600 Battery – 3kg

Bosch PowerTube 800 Battery – 3.9kg

Lighter batteries and more range in the CUBE collection

To go along with the Bosch Performance Line CX Gen 5 motor there are two new batteries; the PowerTube 600 and PowerTube 800.

These utilise the same updated cells as the CompactTube 400 battery that debuted with the lightweight SX motor last year. They feature a higher energy density, which simply means more watt-hours at a lower weight;

  • Bosch PowerTube 600 Battery – 3kg
  • Bosch PowerTube 800 Battery – 3.9kg

To put that into perspective, the new PowerTube 800 is 400g lighter than the old PowerTube 750 battery despite offering greater capacity and since both batteries share the same size, they are easily interchangeable without the need for an adapter.

Purion 400 Display

Featuring a 1.6in screen, the new Purion 400 bears a close resemblance to Shimano’s EM800 display and complements the Performance Line CX drive unit, featuring a minimalist design tailored for eMTBs and optimally protected within the handlebar triangle. The 1.6-inch transmissive display, which remains easily readable in bright sunlight, provides a clear overview of useful data such as speed, range, power output, and total distance. You’ll find the new Purion 400 display on the majority of new 2025 eMTBs.

Bikes featuring the new Performance CX Line drive unit

At the time of launch we know that new 2025 Cube Kathmandu Hybrids, Reaction Hybrids and Stereo Hybrids will be fitted with the new GEN 5 Performance CX Line drive units and expect that many other manufacturers will also be fitted with the new technology as standard, so stay tuned to find out who these are as they are manufacturer launches it’s 2025 model year range.

Cube Kathmandu Hybrid Pro 800 2025

 

The CUBE Kathmandu Hybrid’s design is classically elegant – familiar, even – but it’s stuffed full of innovation and clever touches. The neatly housed Bosch CX drive and PowerTube battery are just the start. Efficient Comfort Geometry is designed around a 100mm travel suspension fork, for better control even when the going gets rough. Integrated cables complement the frame’s clean lines and help reduce the need for maintenance, while a UDH dropout is tough, versatile and future-proof. And, of course, there’s an integrated chainguard mount and our tough, sturdy and exceptionally neat Integrated Carrier 3.0, so you can carry everything you need for your adventures.

 

Cube Stereo Hybrid One44 HPC AT 800 2025

 

The Stereo Hybrid One44 HPC AT is all about sweating the details. The 4-piston Shimano XT hydraulic brake calipers harness the incredible grip of Schwalbe’s Magic Mary and Big Betty 2.4in tyres to deliver assured speed control, no matter the conditions. Sram’s XO Eagle Transmission 1×12 gears transfer the combined power of your pedalling and the Bosch CX drive unit – which can deliver up to 85 Nm of extra torque – to the Newmen Beskar 30 wheelset, backed up by an battery for the best possible range. And with a Fox Float 36 Factory Grip X fork, Float X Factory rear shock and remote dropper post, the only component missing is you.