VOLspeed tuning module for Bosch Performance Line CX rim magnet V2 fits Bosch Performance Line CX drive systems that use the rim magnet speed sensor. This e-bike tuning module (e-bike tuning module) removes the 25 km/h assistance limit and lets you set an adjustable limit up to 45 km/h.
This version is designed to work with the original rim magnet, so no additional speed sensor (speed sensor) is required. The module stays invisible after installation, and it is controlled directly from the bike’s control unit (control unit) without a smartphone.
The tuning function is always OFF at every power-on, so activation happens only when you choose it. This model is not compatible with ABS e-bikes, and it only works on e-bikes that have a rim magnet.
VOLspeed Rim Magnet V2 Benefits
- Adjustable speed unlock – assistance limit can be set from 25 km/h up to 45 km/h.
- Rim magnet operation – uses the original rim magnet, so an extra speed sensor (speed sensor) is not needed.
- Control unit operation – switch tuning on or off using the handlebar control unit (control unit).
- Personal activation PIN – set a custom PIN code that is used for activation.
- Dynamic Mode soft cut-off – “Dynamic Mode” reduces the harsh feel when approaching the limit.
- Automatic calibration – module calibrates automatically after installation and is ready to use.
- Last setting memory – keeps the last selected speed limit for the next ride.
- Low power and weight – 0.3 W at 12VDC, with a module weight of 0.021 kg.
Who Is This For?
This VOLspeed tuning module (e-bike tuning module) is for riders using Bosch Performance Line CX systems with a rim magnet speed sensor. It is intended for Bosch Gen 4 and Gen 5 CX drive units where the bike uses a rim-mounted magnet rather than another sensor layout.
Compatible drive units (by code) include: Performance Line CX, Gen 4 (BDU374Y); Performance Line CX Race Edition, Gen 4 (BDU376Y); Performance Line CX Cargo Line, Gen 4 (BDU374Y); Performance Line CX, Gen 5 (BDU384Y); Performance Line CX-R, Gen 5 (BDU386Y); Performance Line CX Cargo Line, Gen 5 (BDU384Y).
This product is for e-bikes that do not have ABS, because ABS-equipped e-bikes are not supported. It also does not work on e-bikes without a rim magnet, because the module is built specifically for the rim magnet signal.
Package Contents
- VOLspeed tuning module (tuning module)
- English installation and user manual
- 2 mounting clips
- 2 cable ties
Technical Specs
| Product type | E-bike tuning module (e-bike tuning module) for Bosch Performance Line CX rim magnet |
| Function | Derestriction from 25 km/h, adjustable assistance limit up to 45 km/h |
| Compatible speed sensor type | Rim magnet (original rim magnet), no additional speed sensor required |
| ABS compatibility | Not suitable for e-bikes with ABS (anti-lock braking system) |
| Housing dimensions | 48 mm × 48 mm × 6 mm |
| Cable length | ~140 mm |
| Weight | 0.021 kg |
| Power consumption | 0.3 W |
| Supply voltage | 12VDC |
| Control method | Via the bike control unit (control unit), no smartphone |
| State at power-on | Tuning is always OFF until consciously activated |
| Calibration | Automatic calibration after installation |
| Mode | Dynamic Mode (soft cut-off) |
| Settings memory | Stores the last selected speed limit |
| Installation visibility | Invisible after installation |
Why Choose This VOLspeed Rim Magnet V2 Module?
This VOLspeed Bosch CX rim magnet module focuses on native integration with the original rim magnet, so you keep the existing sensor setup. The control unit (control unit) operation keeps adjustments on the bike, and the personal PIN adds an activation step that you set yourself.
Dynamic Mode (soft cut-off) is included to reduce the abrupt feeling at the assistance boundary. Automatic calibration makes the module ready right after fitting, while the saved limit means you can keep your preferred setting without redoing setup each time.
The design also keeps the module hidden after installation, and it starts with tuning disabled at every power-on. Power draw is specified at 0.3 W on 12VDC, and the module weighs 0.021 kg.
FAQ
Which Bosch systems does this VOLspeed tuning module fit?
- It fits Bosch Performance Line CX drive systems that use a rim magnet speed sensor.
- Supported drive units include Gen 4 and Gen 5 CX variants listed by code: BDU374Y, BDU376Y, BDU384Y, and BDU386Y.
Does it work with Bosch Performance Line CX e-bikes that do not have a rim magnet?
- No, this version is built only for rim magnet setups.
- E-bikes without a rim magnet are not suitable for this module.
Is this VOLspeed module compatible with ABS e-bikes?
- No, it is not compatible with ABS (anti-lock braking system) equipped e-bikes.
What speed limit can I set with VOLspeed Rim Magnet V2?
- The assistance speed limit can be adjusted from 25 km/h up to 45 km/h.
- The module’s function is derestriction from 25 km/h with an adjustable upper limit.
How do I control it, and do I need a phone?
- Control is done via the bike’s control unit buttons.
- No smartphone is required for switching or adjustments.
Does tuning stay enabled when I turn the bike off?
- No, tuning is always OFF at every power-on.
- Activation is performed consciously when you decide to enable it.
Do I need to install an extra speed sensor?
- No, it uses the original rim magnet.
- No additional speed sensor (speed sensor) is required.
What are the physical size and power requirements?
- Housing size is 48 mm × 48 mm × 6 mm and cable length is ~140 mm.
- Power consumption is 0.3 W with a 12VDC supply voltage, and weight is 0.021 kg.
VOLspeed Tuning Module for Bosch Performance Line CX Rim Magnet V2 delivers adjustable 25–45 km/h assistance settings, control unit operation, automatic calibration, Dynamic Mode soft cut-off, and PIN-based activation in a hidden, rim-magnet-specific design.
Search terms: VOLspeed Bosch CX rim magnet tuning module (e-bike tuning module), Bosch Performance Line CX speed unlock (derestriction), Rim Magnet V2, Dynamic Mode soft cut-off, BDU374Y BDU376Y BDU384Y BDU386Y compatible.
