Bosch Performance Line CX-R eMTBs
The CX-R is the race-tuned version of Bosch’s Performance Line CX, built for enduro and gravity riding where peak power and fast response matter most.
- Builds
- 10
- Brands
- 6
- Torque (as quoted)
- Up to 120 Nm · 120 Nm · 100 Nm
- Battery
- 600–800 Wh
- Price
- ≈€7,499 – €12,499
- Lightest
- 21.9 kg
Brands: Cube, Moustache, Scott, Haibike, Megamo, Merida · filter in catalog →
About the Bosch Performance Line CX-R
The Performance Line CX-R is Bosch's top racing-oriented e-MTB motor for the smart system, presented in 2025 for model year 2026. It is based on the CX Gen 5 platform but uses a titanium crank spindle, ceramic bearings and a magnesium housing, bringing weight to about 2.7 kg.
At launch it offered 100 Nm, 750 W and 400% support. With Bosch's free Performance Upgrade 2.0 (released 4 May 2026 via the eBike Flow app), maximum torque rose to 120 Nm and support to 600% up to 15 km/h, while peak power stayed at 750 W. The bike manufacturer must enable the higher values before riders can activate them.
Its signature feature is Race mode, with very direct response and Extended Boost for technical climbs; eMTB+ adds dynamic traction control. It works with the full smart system ecosystem, including PowerTube batteries up to 800 Wh and the PowerMore 250 range extender.
The CX-R targets enduro racers and performance-focused riders on premium full-power e-MTBs. For most riders the standard CX Gen 5 offers the same torque and power figures at a slightly higher weight.
Bosch Performance Line CX-R: specs
| Version | Torque | Peak power | Weight | Notes |
|---|---|---|---|---|
| Performance Line CX-R (BDU386Y) | 120 Nm (since Performance Upgrade 2.0, May 2026; 100 Nm at launch) | 750 W | 2.7 kg | Up to 600% support up to 15 km/h after Upgrade 2.0 (400% at launch); 730 W at 70 rpm. |
- Launched
- 2025 (model year 2026, available from fall 2025)
- System
- Bosch smart system: PowerTube batteries, PowerMore 250 range extender, Kiox 400C / Kiox 500 / Purion 400 displays, LED Remote / Mini Remote / System Controller, eBike Flow app, optional ConnectModule and eBike ABS.
- Batteries
- PowerTube 400-800 Wh; PowerMore 250 Wh range extender
- Assist modes
- Race, eMTB+, Turbo, Tour+, Auto, Eco and others selectable via app (max. four plus Off on the display); Extended Boost; walk assist with Hill Hold
- App & tuning
- Bosch eBike Flow app: custom riding modes, OTA updates, eBike Lock, Trick Check; Flow+ subscription for alarm/ConnectModule features.
Strengths and drawbacks
Strengths
- + 120 Nm / 750 W with free Performance Upgrade 2.0
- + Lightest full-power Bosch motor at about 2.7 kg
- + Premium internals: titanium spindle, ceramic bearings, magnesium housing
- + Large Bosch dealer and service network
Drawbacks
- – Race mode criticized in tests as very aggressive and hard to modulate
- – Peak power of 750 W is below Avinox and Giant SyncDrive Pro 4
- – Small real-world advantage over the cheaper CX Gen 5
Error codes & firmware
All Bosch Performance Line CX-R bikes, by price
| Bike | Motor | Battery | Travel F / R | Weight | Price |
|---|---|---|---|---|---|
 CubeAMS Hybrid 177 C:62 AT 600X | Bosch Performance Line CX-R | 600 Wh | 170 / 170 mm | 21.9 kg | €7,499 |
 CubeStereo Hybrid ONE44 HPC SLT 800 | Bosch Performance Line CX-R | 800 Wh | 150 / 140 mm | 23.4 kg | €8,499 |
 CubeStereo Hybrid ONE77 HPC SLT 800 | Bosch Performance Line CX-R | 800 Wh | 170 / 170 mm | 23.5 kg | €8,699 |
 MoustacheGame 160.9 Race | Bosch Performance Line CX-R | 600 Wh | 170 / 160 mm | 24.2 kg | €9,599 |
 ScottPatron ST eRIDE Tuned | Bosch Performance Line CX-R | 800 Wh | 170 / 150 mm | 24.1 kg | £9,399≈€10,997 |
 HaibikeHYBE CF 11 | Bosch Performance Line CX-R | 800 Wh | 170 / 160 mm | — | €11,000 |
 MegamoFlame CRB 01 | Bosch Performance Line CX-R | 800 Wh | 170 / 160 mm | — | €11,999 |
 MegamoFlame CRB 00 | Bosch Performance Line CX-R | 800 Wh | 170 / 160 mm | — | €12,499 |
 MeridaLITHOS 8000 | Bosch Performance Line CX-R | 800 Wh | 170 / 174 mm | 25.5 kg | — |
 MeridaLITHOS 10K | Bosch Performance Line CX-R | 800 Wh | 170 / 174 mm | 24.8 kg | — |
Prices are manufacturer RRPs in the brand’s currency; ≈€ figures use approximate exchange rates.
Bosch Performance Line CX-R: FAQ
How is the CX-R different from the CX?
Both now offer 120 Nm and 750 W. The CX-R is about 100 g lighter (2.7 vs 2.8 kg) thanks to a titanium spindle, ceramic bearings and magnesium housing, and adds the exclusive Race mode.
Is the 120 Nm upgrade free?
Yes. Performance Upgrade 2.0 is a free over-the-air update via the eBike Flow app, released on 4 May 2026, but the bike manufacturer must approve the higher torque and support values.
When does 600% support apply?
Bosch states the 600% maximum applies up to 15 km/h in Race, Turbo, eMTB+, Cargo and Auto modes; above that, assistance returns to lower maximums.
Which eMTBs use the Bosch Performance Line CX-R?
10 builds in our catalog from 6 brands: Cube, Moustache, Scott, Haibike, Megamo, Merida.
What is the cheapest eMTB with the Bosch Performance Line CX-R?
The Cube AMS Hybrid 177 C:62 AT 600X at €7,499.
What is the lightest eMTB with the Bosch Performance Line CX-R?
The Cube AMS Hybrid 177 C:62 AT 600X at a claimed 21.9 kg.
What battery sizes come with the Bosch Performance Line CX-R?
From 600 Wh to 800 Wh, depending on the bike and build.