What is the Bosch CX Gen5?

Power Meets Control

What is the Bosch CX Gen5?

The Bosch CX Generation 5 is the latest (and 5th) e-bike motor in Bosch’s Performance Line series. It’s compact, lightweight and powerful, designed for trail and mountain biking with impressive torque and efficiency. Equally as impressive in providing assistance to leisure bikes, like the Cube Kathmandu. It’s a motor that makes riding fun for everyone.

Why Choose It?

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.

What’s New?

Compared to the Gen 4, it’s lighter and smaller but just as powerful. It features enhanced cooling for better performance over long periods, supports Bosch’s Smart System, and is compatible with the eBike Flow app for customisable riding modes. New to Gen 5 is the Walk Assist and Hill Start Assist technology, making it easier to get going again on difficult, rocky terrain. A bright and clear Purion 400 screen keeps you up to date with how much battery is remaining and which mode you are in. Gen 5 has some fantastic new features that make it a noticeable upgrade from Gen 4 editions.

Battery Compatibility

Works with Bosch’s latest PowerTube and PowerPack batteries, like the 800Wh for maximum range or smaller options for lightweight setups.

Connectivity Features

The Smart System lets you connect your bike to the Bosch eBike Flow app. You can track your rides, update firmware wirelessly, and tweak motor settings to suit your style. Bosch PowerMore allows for long days in the saddle. It’s battery pack for your bike and can extend the range of your battery by 250Wh.

Who’s It For?
Trail and enduro riders who want a smooth, responsive motor with plenty of power for demanding terrain. Leisure riders seeking extra assistance and quieter motor noise on the weekend adventures. It’s great for riders who value modern tech and app connectivity. It’s game changing in it’s advancements to the E-Bike motor world and whether you’re shredding at the weekend or just out for a leisurely explore, the hill start assist, energy efficient battery and battery size options will not disappoint.

Best Brands Using It
Look for brands like Trek, Cube and Santa Cruz, who often integrate Bosch motors seamlessly into their e-bike designs.

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