SpeedBox 3.3 B.Tuning for Yamaha (PW-X3, PW-S2, PW-XM)

Key features

SpeedBox 3.3 B.Tuning with integrated Bluetooth is a reliable tuning chip for e-bikes with Yamaha PW-X3, PW-S2 or PW-XM motors. It removes the 25 km/h speed limit and, thanks to the SpeedBox App, offers unique connectivity between your e-bike and smartphone.

Tuning control

Switching between the 25 km/h speed limit and unlimited mode

Easy installation

Thanks to clear instructions including video guides, anyone can install it themselves

Compatibility

• Yamaha motors: PW-X3, PW-S2, PW-XM

• Displays: A, B, C, X

• Compatible with: SpeedBox Tracker

• Not compatible with e-bikes: UrbanRush, CrossCore, CrossConnect, Wabash, YDX-Torc

Technical specifications

• Maximum speed: Unlimited (depends only on pedaling cadence)

• Display shows: Real values

• Custom speed limit: Adjustable

• 3 activation / deactivation methods: SpeedBox App / LIGHTS button / + - + - buttons

• Bluetooth: Yes

• Updates: No

Installation

Installing the device is easy and intuitive. Choose the option that suits you best – a video guide, a printed manual, or a detailed step-by-step picture guide.

Video guide
A detailed installation and tuning activation guide is available on our YouTube channel

Tuning control

• You can activate tuning in the SpeedBox App (Tuning off / Tuning on).

• You can also turn it on using the e-bike controller by pressing the LIGHT button.

• The display will briefly show 9.9 km/h (6.2 mph), which means tuning is on — from this moment there is no speed limit and the speed depends only on the motor output and your pedaling cadence.

• Deactivate tuning the same way.

• The display will show 2.5 km/h (1.6 mph) and the e-bike will return to the original 25 km/h limit.

• If your controller does not have a LIGHT button, you can control tuning with the + – + – button combination.

Custom speed limit settings

• SpeedBox allows you to set a custom speed limit (for example, to save battery).

• You can change the speed limit in the SpeedBox App.

• Or on the controller, switch to Turbo mode and then shift 3× down and 3× up in the following order:

• → EMTB → Tour → Eco → Tour → EMTB → Turbo.

• The display will show the current limit.

• Increase it by 5 km/h with a short press of the LIGHT button (or by rotating the rear wheel 360°).

• Example: 3.0 km/h = 30 km/h limit, 4.5 km/h = 45 km/h, etc.

• The last selected limit is saved automatically after 5 seconds of inactivity.

Recommendations for riding and stopping

• During a short stop, keep one foot on the pedal so the countdown doesn’t start.

• During a longer stop, let the countdown run at least partially.

• After a longer ride, the countdown may take several minutes – do not disconnect the display until the process is finished.

Warning

• Rules for using derestricted e-bikes vary by country, so please check your local legislation before riding.

• SpeedBox is intended for off-road use only and you use it at your own risk.

• The manufacturer is not liable for damages caused by illegal or improper use.

• Installation may also void your e-bike warranty.

• For your safety, use appropriate protective gear and ride with maximum caution.