Our lightest drive unit: for sporty riding

Performance Line SX

Our lightest drive unit: for sporty riding

Performance Line SX

Our lightest drive unit: for sporty riding

Performance Line SX

Off to a fast start

Whether light eMTB or eGravel, a high cadence is rewarded. On rugged terrain or from traffic light to traffic light on your eUrban bike.

New kind of eBiking

Start pedaling and feel the support: sensitive, quiet, direct. A natural riding sensation combined with the benefits of the eBike.

Stylish and inconspicuous

Lightweight, slim, beautiful eBikes: The compact Performance Line SX drive unit disappears into the frame of light eMTBs, eGravel or eUrban bikes.

Lightweight and powerful

The Performance Line SX is extremely light and remarkably quiet. If you have a sporty riding style, it drives you forward unobtrusively but with noticeable power.

Performance Line SX

Sporty lightness

When muscle power and electric support work in conjunction and you get top performance exactly when you need it: With the Performance Line SX, we are launching a sporty drive unit that is lighter and more compact than anything we have developed so far. For light eMTBs, eGravel and eUrban bikes.

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At a glance

Up to 600 watts

Maximum power in the most compact space

approx. 4.4 lbs

Our lightest drive, inconspicuously installed

Max. 55 newton meters

Pedal fast, get powerful support

Sprint mode

For sporty eGravel and eUrban riding

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For sporty riding

Pedal faster, pick up speed even faster: The Performance Line SX works at least as hard as you do. When riding in a sporty style with a high cadence, it supports you disproportionately to your performance with peaks of up to 600 watts of motor power. With its sensitive and reactive response behavior, it is ideal for all those who ride in sporty style with electric support and are looking for a training effect.

Lightness – almost natural

A reduced pedal resistance of more than 50 percent compared to the Performance Line CX, a narrower design of the cranks and an almost silent motor – the Performance Line SX convinces in many respects. Its direct but sensitive response conveys the feel of conventional cycling and enhances it with the ease and fun of eBiking.

Light, compact, agile

Around 4.4 lbs: The Performance Line SX is our lightest drive with the highest power density. Ride your eGravel bike dynamically into corners and carry your eUrban bike up to the fourth floor: The Performance Line SX reduces the total weight of your eBike, delivers greater agility and is ideal for fans of a sporty riding style. In addition, the compact drive unit disappears elegantly into the crank area of your eBike – so it looks like a conventional bike.

Multifaceted: sporty riding

You're looking for a challenge on the trail, on technically demanding passages and when riding uphill? Installed in light eMTBs, the Performance Line SX is the optimal piece of training equipment for you. But even if you're dreaming of long-distance adventures and don't yet know exactly which surfaces await you, the drive unit is ideally suited for powering eGravel bikes. You want to ride dynamically on the road with minimalist, agile eCity bikes? Here, too, the Performance Line SX is the right choice.

Optimal set-up for light, slim eBikes

Performance Line SX

The lightest drive unit in the Bosch range, exceptionally compact.

The lightest drive unit in the Bosch range, exceptionally compact.

Sprint mode

Dynamic support according to the cadence – for fast sprints and steep climbs.

Dynamic support according to the cadence – for fast sprints and steep climbs.

CompactTube 400

With 400 watt hours at just around 4.4 lbs, it's a real energy champion.

With 400 watt hours at just around 4.4 lbs, it's a real energy champion.

Bosch eBike System controller for the smart system
System Controller

Reduced, minimalist, clean: This control unit is seamlessly integrated into the top tube.

Reduced, minimalist, clean: This control unit is seamlessly integrated into the top tube.

Technical data

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Performance Line SX

SystemThe smart system
Gear typeDerailleur system/hub gear system*
Max. support level** (%)

340 %

Maximum possible drive torque (Nm)55 Nm
Start-up behaviorSensitive
Max. support up to20 mph
Backpedal functionNo
Smart Walk Assist with Hill Holdx
Gear shift detectionNo****
Weight approx. 4.4 lbs
Rated continuous output250 W
Maximum power600 W
Max. power at a cadence of 70 rpm400 W
Max. power-to-weight ratioapprox. 136 W/lbs


Performance Line SX

SystemThe smart system
Gear typeDerailleur system/hub gear system*
Max. support level** (%)

340 %

Maximum possible drive torque (Nm)55 Nm
Start-up behaviorSensitive
Max. support up to20 mph
Backpedal functionNo
Smart Walk Assist with Hill Holdx
Gear shift detectionNo****
Weight approx. 4.4 lbs
Rated continuous output250 W
Maximum power600 W
Max. power at a cadence of 70 rpm400 W
Max. power-to-weight ratioapprox. 136 W/lbs

* Maximum values. Deviations possible, depending on the hub gear system.

** Activation/deactivation of the various riding modes is carried out by the bicycle manufacturer and the dealer. A maximum of four riding modes in addition to Off mode can be activated in the display. With individual riding modes, the modes can be configured via the eBike Flow app based on the rider's individual needs. Customization of riding modes is not possible for speed eBikes.

*** Optional only with hub gear system. There is no backpedal function with the derailleur system.

**** Exception: eShift hubs.

 

FAQs & more

The Performance Line SX is significantly more compact in design and lighter in weight. Due to the lower torque, however, it requires a higher cadence to achieve the same support.

Would you like to compare different drive units? You can find detailed information and technical data  here.

You can search for specific error codes in the search bar. We provide all codes with a description and possible solution steps.

Error codes consist of a classification and a sequence of numbers and letters. These codes are used to identify malfunctions that may occur during operation of your eBike.

For the drive unit and display components, the operating temperature is 23°F to 104°F and the storage temperature is 50°F to 104°F.

The ideal storage temperature for the battery is 50°F to 68°F.

More FAQs

More information about eBikes: