The ultimate in Drive Units

The Performance Line CX

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The ultimate in Drive Units

The Performance Line CX

Watch the video

Upgrade now

A new era for electric mountain bike riders

Performance Line CX provides a unique eMTB experience. Compact, lightweight and with more power, it combines high-quality materials with an enormously powerful drive and sophisticated sensors. It adds a whole new dimension to eMTB riding on the trail. With the model year 2021 software update, it offers torque up to 85 Nm, new motor control features and an enhanced eMTB mode. For an exciting riding experience: natural, intuitive, powerful and an absolute benchmark in its class.

Software update now available from Bosch certified retailers*

*Dealers may charge a service fee for updates.

Click to learn more  Find a dealer

Highlights

New More torque

More powerful than ever: Increased to 85 Nm, the torque has a noticeable effect on riding behavior. It accelerates faster, particularly at low cadences, and makes uphill starts much easier. The eMTB rider has more power available for whenever it's needed.

New Extended Boost

Impressive performance on the trail: Extended Boost is a unique function that helps you ride smoothly over roots, steps and stones, even when going uphill. With this function you can maneuver with greater ease and agility on challenging trails.

New Perfect control

Ready for every challenge: The advanced eMTB mode ensures even better control on the trail, without having to switch riding modes. The motor responds much more sensitively to the rider's effort, especially in low gears, enabling an extremely sensitive start.

Maximum agility

Extraordinary sensitivity: Thanks to the multi-sensor concept that takes more than 1,000 measurements per second, the Drive Unit is characterized by an extremely sensitive response.

Natural riding dynamism

Perfectly controlled support: The powerful 32-bit processor enables sensor signals to be processed at high speeds. Performance can be controlled precisely, offering eMTB riders the best possible support in all riding situations.

Thermal stability

For extreme loads: The Drive Unit is extremely efficient and, thanks to the completely maintenance-free 16-pin BLDC electric motor featuring the latest bar winding, it is characterized by great thermal stability. This ensures constant performance even under continuous load.

Performance upgrade and new features

New A riding experience that sets new standards: As of model year 2021, Performance Line CX provides even greater riding enjoyment on the trail thanks to enhanced software and a maximum torque of 85 Nm. The increased torque delivers a performance boost for even more powerful support, especially at low cadences. This provides noticeably faster acceleration in eMTB and Turbo mode and makes starting off on steep sections much easier. The wider cadence range makes it easier to handle unforeseeable riding situations – as can happen in the case of late gear shifting or when accelerating out of a tight corner. The ride remains smooth and controlled when out of the saddle and in Turbo mode. 

Next-level eMTB mode

New The progressive riding mode for every occasion: Advanced eMTB mode ensures eMTB riders are well-prepared for whatever riding situation the trail may have in store. New sensor and motor control functions give eMTB riders a much wider range of dynamic and natural support. Riders continue to benefit from the proven technology of eMTB mode: Depending on pedal pressure, progressive motor support adapts perfectly to the riding situation. The improved adjustment of eMTB mode ensures optimum traction control in all gears and enables organic handling (AKA 'power on demand'). Start-up behavior is much finer and more sensitive - especially in low gears. Due to the increased torque, the drive unit supports an even wider cadence range. 

Extended Boost

New Extended Boost is the unrivalled function for negotiating exposed roots, steps and stones on the trail with ease, even uphill. The eMTB can be maneuvered with much greater agility and ease on technical sections. The unique dynamism means that obstacles can be overcome with ease by applying the right amount of pressure to the pedal. The pedals rarely, if ever, jam. The new, innovative function in eMTB mode can be controlled to optimum effect in all riding situations. If the front wheel is already on the step, a slight pedal pressure is all it takes to give the decisive "kick". This takes pedal management to a whole new level. 

Retrofitting and availability

The software update is available from specialist retailers and is available for all eBikes with the Performance Line CX from model year 2020 onwards. New eBike models from model year 2021 onwards are available with the update from specialist bike dealers. 

Find a dealer

Drive Unit

Strong support

The Performance CX Drive Unit is the power benchmark among the drives. Weighing 6.3 lbs and with a maximum torque of 85 Nm, it brings more riding enjoyment to the trail on demanding rides despite its particularly compact size. The eMTB bike motor is compact, lightweight and extremely powerful, combining high-quality materials, an extremely powerful drive and high-end sensors.

Icon with an arrow circling around an indication of 65 Nm

Max. torque

For powerful acceleration in a compact unit.

Maximum support

For a powerful push, extremely sporty riding and fast sprints

Drive Unit

Powerful support up to 20 mph, even on steep ascents.

Outstanding motor control

The multi-sensor concept enables a dynamic and responsive drive unit for precise acceleration and a unique trail experience.

Direct power transmission

Powerful riding performance right from the start and constant power delivery over a very wide cadence range.

Natural riding sensation

The new gearbox concept significantly reduces pedalling resistance when the drive is switched off and at over 20 mph.

Compact construction

Optimum integration thanks to a 48 % reduction in size and a weight of just <6.3 lbs.

Complete control

eMTB mode with progressive motor support adapts to the riding style on trails.

Extremely robust

Meets the highest eMTB requirements and will withstand extreme loads.

Perfect combination

eMTB mode, powerful walk assistance and support for short cranks. 

eSuspension

The spring fork and damper automatically adjust to the relevant terrain within fractions of a second.

Precise acceleration

For a unique trail experience.

Efficient use of energy

Optimum efficiency of motor and gearbox in order to conquer long, steep climbs.

Always full performance

Ideal for fast intermediate sprints and crisp changes of tempo.

Compact and light

The perfect drive for sporty use.

Awards

eMTB User Award 2021 - Gold

Around 7,000 eMTB-News.de readers have cast their votes in recent weeks. The Gold eMTB News User Award 2021 goes to the Performance Line CX from Bosch eBike Systems in the eBike motor category.

EBIKE AWARD 2020

Performance Line CX tops the "Best Motor" category in EBIKE Magazine's comparison test and is named the winner of the EBIKE AWARD.

reddot Award

Thanks to its sporty look and dynamic linear design, the Performance Line CX has received a Red Dot Design Award. 


Battery range with Performance Line CX

Average of combined use of all four modes and favourable conditions.

Improved precision of range information in our Range Calculator.

Average of combined use of all four modes and favourable conditions.

Improved precision of range information in our Range Calculator.

Average of combined use of all four modes and favourable conditions.

Improved precision of range information in our Range Calculator.

Average of combined use of all four modes and favourable conditions.

Improved precision of range information in our Range Calculator.

Average of combined use of all four modes and favourable conditions.

Improved precision of range information in our Range Calculator.

Average of combined use of all four modes and favourable conditions.

Improved precision of range information in our Range Calculator.

Average of combined use of all four modes and favourable conditions.

Improved precision of range information in our Range Calculator.

Average of combined use of all four modes and favourable conditions.

Improved precision of range information in our Range Calculator.


Compatible displays with Performance Line CX

eShiftNot compatible!
LockNot compatible!
eSuspensionNot compatible!

Walk assistance

Powerful walk assistance

Whether you encounter a carpet of roots or mountain slopes: The optimised walk assistance provides even and powerful support in the face of almost any obstacle without any delays. The speed and start-up behaviour of the walk assistance automatically adjust, depending on the gradient.

eSuspension

Optimum suspension at all times

E-Live Valve for Performance Line CX, developed by FOX in partnership with Bosch eBike Systems, provides eMTB riders with electronically controllable suspension designed for maximum comfort and fun. FOX E-Live Valve can be easily controlled via the Kiox computer and is powered via the Bosch rechargeable battery. Using a sophisticated system of sensors, the FOX E-Live Valve system determines the conditions of the terrain 1,000 times per second and adjusts the suspension fork and rear shock accordingly within fractions of a second. This means that the electric mountain bike rider can always be sure of the ideal suspension setting and can concentrate fully on enjoying the trail.

  • Adaptive suspension with 5 adjustable modes for different riding situations
  • Intelligent detection of different surfaces and terrain types (uphill, downhill, flat)
  • Fast response within fractions of a second (3 milliseconds)
  • Maximum integration thanks to the power supply via the Bosch rechargeable battery and mode control via the Kiox on-board computer
  • Perfectly tailored to the Performance Line CX

SRAM Eagle

Gear shifting solutions for eMountain bikes

With Eagle, SRAM offers a perfectly coordinated gear shifting system that features an impressively wide spread of gear ratios, extensive component diversity and perfect gear shifting operations. When used on electric mountain bikes, the wide variety of 12 gears and the smooth running of the X-Sync 2 chainrings provide a unique and long-lasting riding sensation. Eagle now brings the latest generation of high-tech gear shifting systems to eMTBs.

  • Single drive with 12 gears
  • Enormous gear range of 500%, cassette with 10–50 gear teeth 
  • Special one-click eBike switch
  • Robust and durable PG-1230 cassette
  • X-Sync 2 chainring for Bosch Performance Line CX
  • Free component selection from SX, NX, GX, X0 and XX1 
  • All Eagle groups and components are compatible with each other

Technical data

CGI of an Active Line
Active Line
(20 mph)

CGI of an Active Line
Active Line

(20 mph)

CGI of an Active Line Plus
Active Line Plus
(20 mph)

CGI of an Active Line Plus
Active Line Plus
(20 mph)


Cargo Line Cruise

(20 mph)


Cargo Line Cruise
(20 mph)


Cargo Line Speed
(28 mph)


Performance Line Cruise
(20 mph)


Performance Line Cruise

(20 mph)


Performance Line Sport *
(28 mph)


Performance Line Speed

(28 mph)


Performance Line CX
(20 mph)

Gear type Hub gear system Derailleur system Hub gear system Derailleur system Hub gear system Derailleur system Derailleur system Hub gear system Derailleur system Derailleur system Derailleur system Derailleur system/Hub gear system*
Support level (%) TURBO: 250
SPORT: 170
TOUR: 100
ECO: 40
TURBO: 250
SPORT: 170
TOUR: 100
ECO: 40
TURBO: 250
SPORT: 170
TOUR: 100
ECO: 40
TURBO: 270
SPORT: 180
TOUR: 100
ECO: 40
TURBO: 400
SPORT: 240
TOUR: 140
ECO: 60
TURBO: 400
SPORT: 240
TOUR: 140
ECO: 60
TURBO: 400
SPORT: 240
TOUR: 140
ECO: 60
TURBO: 300
SPORT: 200
TOUR: 120
ECO: 55
TURBO: 300
SPORT/
eMTB**: 120-300
TOUR: 120
ECO: 55
TURBO: 300
SPORT: 200
TOUR: 120
ECO: 55

TURBO: 340
SPORT: 240
TOUR: 140
ECO: 60

TURBO: 340
eMTB**: 140-340
TOUR: 140
ECO: 60

Maximum possible drive torque (Nm) TURBO: 40
SPORT: 38
TOUR: 35
ECO: 30
TURBO: 40
SPORT: 38
TOUR: 35
ECO: 30
TURBO: 50
SPORT: 45
TOUR: 40
ECO: 35
TURBO: 50
SPORT: 45
TOUR: 40
ECO: 35
TURBO: 85***
SPORT: 60
TOUR: 50
ECO: 40
TURBO: 85***
SPORT: 60
TOUR: 50
ECO: 40
TURBO: 85***
SPORT: 60
TOUR: 50
ECO: 40
TURBO: 65
SPORT: 50
TOUR: 45
ECO: 35
TURBO: 65
eMTB**: 60
TOUR: 45
ECO: 35

TURBO: 65
SPORT: 60
TOUR: 45
ECO: 35

TURBO: 85***
SPORT: 60
TOUR: 50
ECO: 40
TURBO: 85***
eMTB**: 85
TOUR: 50
ECO: 40
Maximum cadence (rpm)     100 100 105 105 > 120 > 120 > 120 > 120 > 120 > 120 > 120 > 120
Start-up behavior  harmonious harmonious harmonious agile harmonious agile powerful powerful powerful dynamic sporty  sporty  sporty  very sporty
Max. Support up to  20 mph 20 mph 20 mph 20 mph 20 mph 20 mph 28 mph 20 mph 20 mph 28 mph 28 mph 20 mph
Gear shift detection   ja ja nein ja nein ja ja nein ja ja ja ja
(dynamic)
Weight

approx. 

6.3 lbs

approx.

6.3 lbs

approx.

7.1 lbs

approx.

7.1 lbs

approx.

6.3 lbs

approx.

6.3 lbs

approx.

6.3 lbs

approx.

7.1 lbs

approx.

7.1 lbs

approx.

7.1 lbs
approx.
7.1 lbs

approx.
6.3 lbs

* Deviations in drive torque and maximum support are possible depending on the hub gear system.

** In the case of the Performance Line CX, eMTB mode can replace Sport mode. It can be activated/ deactivated by the bicycle manufacturer and the specialist dealer.

*** From model year 2021, the drive unit will be offered with 85 Nm; the previous versions offer 75 Nm.

Frequently asked questions about the Perfomance Line CX

eBikes with the Drive Unit Performance Line Speed or Cargo Speed cannot be retrofitted, but new models with the 85 Nm update will be available from specialist dealers from fall 2020. This is due to the fact that the Speed version with the new software must undergo homologation.

The 85 Nm upgrade is available from specialist dealers as a software update from now on.

Find a dealer

The Performance Line CX from MY2020 onwards is based on a completely new platform with new electronics, new electric motor and new gearbox. The software of the older model (up to MY2019) therefore also differs from the software of the new model (from MY2020 onwards) and is not compatible with the MY2021 software update.

To all FAQs

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Full flow off-road

The eMTB mode

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Full flow off-road

The eMTB mode

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Skills and styles

Of eMountain Biking

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Skills and styles

Of eMountain Biking

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More information about eBikes:

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