VOLspeed V4 is an e-bike tuning module (e-bike tuning module) for Bosch drive systems from 2014 onward: Active Line, Active Line Plus, Performance Line, and Performance Line CX, used with Purion, Intuvia, Kiox, or Nyon displays (display).
This tuning chip (tuning chip) lets you change the assist speed limit (speed limit), adjust downshift behavior (downshift behavior), and set assist strength (assist strength) directly from the bike’s control buttons (control buttons).
The module installs invisibly on the motor area and uses a plug-in connection, so no cables are cut or modified during fitting.
Key benefits of VOLspeed Bosch V4 tuning
- Adjustable assist speed limit – the speed limit (speed limit) can be set through the display menu using the bike’s controls.
- Smoother cut-off feel – Dynamic mode makes assist reduction at the limit feel less abrupt than a hard cut (cut-off).
- Mode-by-mode assist tuning – in the alternative mode, you define assist strength per TURBO, EMTB/SPORT, TOUR, and ECO.
- Speed-dependent assistance – in the alternative mode, you can adjust assist behavior based on riding speed.
- Sporty riding with moderated consumption – you can raise the limit slightly, such as to 32 km/h, instead of aiming for near-total limiter removal.
- No phone or PC required – all settings are changed via the display and control buttons, without smartphone apps.
- Plug-in installation – the module connects as a plug-in solution, so wiring stays intact with no cable modifications.
- Fully waterproof electronics – the electronics are potted (waterproof potted electronics), making the unit absolutely water resistant.
Who is this for?
VOLspeed V4 is built for pedelecs (pedelec) and e-bikes using Bosch mid-drive motor (mid-drive motor) systems from 2014 onward. It fits Bosch Active Line, Bosch Active Line Plus, Bosch Performance Line, and Bosch Performance Line CX drive units.
It works with Bosch displays (display) Purion, Intuvia, Kiox, and Nyon, so riders can manage speed limit and assist settings from the familiar handlebar controls. The design focuses on riders who want in-ride adjustability without connecting a PC or smartphone.
This module is not compatible with Enviolo Automatiq and it does not work with the Bosch Smart System (BES3). It is intended for Bosch BES2 / Gen4 family setups.
Package contents
- VOLspeed E-Bike Tuning for Bosch Active / Performance V4 module (plug-in tuning module)
Technical specifications
| Product | VOLspeed E-Bike Tuning for Bosch Active / Performance V4 |
| Type | E-bike tuning module (e-bike tuning module); tuning chip (tuning chip) |
| Primary function | Speed limiter control (speed limiter removal control) and assist behavior setup via display |
| Compatible Bosch drive systems | Bosch Active Line, Active Line Plus, Performance Line, Performance Line CX (2014+) |
| Compatible displays | Purion, Intuvia, Kiox, Nyon |
| Not compatible | Enviolo Automatiq; Bosch Smart System (BES3) |
| Target platform | Bosch BES2 / Gen4 family |
| Installation location | Mounted in the motor area, invisibly from the outside |
| Installation method | Plug-in module; no cable cutting or wiring modification required |
| Typical installation time | Approx. 15 minutes with some technical skills |
| Setup method | Via bike control buttons (control buttons) and display; no PC or smartphone needed |
| Water protection | Potted electronics (waterproof potted electronics); fully water resistant |
Why choose VOLspeed V4?
VOLspeed V4 puts tuning controls on the bike itself, because speed limit settings and assist adjustments are handled through the display and control buttons. This approach keeps setup accessible on Purion, Intuvia, Kiox, and Nyon without adding a phone-based workflow.
The ride feel is also configurable, since Dynamic mode smooths the sensation at the assist limit instead of a sudden cut. In addition, the alternative mode lets you tune assist strength per TURBO, EMTB/SPORT, TOUR, and ECO, with options that react to riding speed.
Installation stays clean because the module is a plug-in unit mounted in the motor area and hidden from view. The potted electronics make the module absolutely water resistant for use on Bosch mid-drive systems from 2014 onward.
FAQ
Which Bosch motors is VOLspeed V4 compatible with?
- Fits Bosch Active Line, Active Line Plus, Performance Line, and Performance Line CX drive systems from 2014 onward.
- Designed for Bosch mid-drive motor (mid-drive motor) platforms in the BES2 / Gen4 family.
Which displays (display) work with this tuning module?
- Compatible with Purion, Intuvia, Kiox, and Nyon displays.
- All settings are changed using the bike’s control buttons (control buttons) through the display interface.
Does VOLspeed V4 work with the Bosch Smart System (BES3)?
- No, it is not compatible with the Bosch Smart System (BES3).
- It is intended for Bosch BES2 / Gen4 family solutions.
Is it compatible with Enviolo Automatiq?
- No, VOLspeed V4 is not compatible with Enviolo Automatiq.
Do I need a smartphone app or a PC to configure it?
- No smartphone or PC is required for configuration.
- Speed limit (speed limit), downshift behavior (downshift behavior), and assist strength (assist strength) are adjusted via the display.
How is the module installed, and is it visible?
- The unit mounts in the motor area and is invisible from the outside.
- It is a plug-in solution, so no wiring is cut or modified.
How long does installation take?
- Installation typically takes about 15 minutes with some technical skills.
Is the electronics unit protected against water?
- Yes, the electronics are potted (waterproof potted electronics).
- This construction makes the module absolutely water resistant.
VOLspeed V4 delivers Bosch-focused tuning control in a hidden, plug-in module, with all adjustments handled through Purion, Intuvia, Kiox, or Nyon for Bosch BES2 / Gen4 systems from 2014 onward.
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