Plug-in tuning modules from SpeedBox and VOLspeed for mid-drive e-bikes with Bosch, Yamaha, Brose, Shimano EP8, Giant SyncDrive and Impulse 2.0 motors. A module changes the speed at which electric assistance cuts out, and models such as the SpeedBox 3.0 and VOLspeed V3 keep real speed and distance on your display. They are intended for off-road riding and private tracks. Choose your motor brand below, then check the drive unit and display.
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Find the module for your motor
- Bosch: find out whether your bike runs the Bosch Smart System. The SpeedBox 3.0 and the VOLspeed V4 are for earlier drives such as Active Line Plus, Performance Line and Performance Line CX. Smart System bikes take the SpeedBox 1.1 B.Tuning or the VOLspeed for Smart System V2, and CX bikes with the original rim magnet sensor have the VOLspeed Rim Magnet V2. See all Bosch modules.
- Yamaha: modules for the PW-X3 and PW-S2, the PW-X family including Air Drive, older PW (V2) drives and the MORO 07 are under Yamaha.
- Brose: the SpeedBox 3.0 for Brose fits S-MAG, S, T, C and T-ALU motors and Specialized bikes with Brose drives, except SL models.
- Shimano: the SpeedBox 1.3 connects to the E-Tube port of EP8 and EP8 RS motors. It does not fit the EP801.
- Giant SyncDrive: VOLspeed makes one module for Sport, Pro, Life and Core from 2017 to 2023 and another for Pro 2 and Sport 2 from 2022.
- Impulse 2.0: the SpeedBox 1.0 suits Kalkhoff, Focus and Rixe models with this motor.
What changes after fitting
On the SpeedBox 3.0, motor power, torque and battery capacity stay exactly as they were: only the assistance cut-off speed moves. Most modules plug into existing connectors and are set with the buttons already on your handlebar, so you do not need a laptop. Use a tuned e-bike only away from public roads, on private ground where this is allowed.
Changed your mind? Consumers can withdraw within 14 days while the module is unused and still sealed.
Frequently asked questions
Which tuning module fits my e-bike?
Start with the motor brand and drive unit, then check the display. For Bosch, the key question is whether the bike runs the Smart System: the SpeedBox 3.0 does not support it, while the SpeedBox 1.1 B.Tuning and the VOLspeed Smart System V2 are made for it. Each product page lists the drives and displays it fits.
Does a tuning module make the motor more powerful?
No. The SpeedBox 3.0, for example, leaves motor power, torque and battery capacity unchanged and only moves the speed at which assistance stops.
Where may I ride with a tuning module fitted?
SpeedBox and VOLspeed modules are intended for off-road riding and private tracks, where changing the speed limit is legal. Do not ride a tuned e-bike on public roads.
Will my display still show the right speed?
With the SpeedBox 3.0 for Bosch and the SpeedBox 3.0 for Brose, the display keeps showing real speed and distance. The VOLspeed V3 for Yamaha corrects speed and distance too. The SpeedBox 1.3 for Shimano EP8 shows real speed only up to about 23 km/h.
Is a tuning module hard to fit?
Not usually, as most modules plug into the existing connectors. The SpeedBox 3.0 for Bosch uses the original colour-coded Bosch plugs, so nothing is cut or soldered. On a brand-new bike, ride at least 10 km before you activate it.
