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SpeedBox 3.1 B. Tuning Kit Derestriction Chip Kit for Yamaha PW-X3 and PW-S2

Tuning kit is compatible with PW-X3 and PW-S2 Yamaha motors. Does not work with these Yamaha e-bikes: MORO 07, Booster, Booster Easy, Wabash RT, CrossCore RC. These e-bikes are not tunable.

Unlock the full potential of your ebike!

  • You will ride faster and experience the thrills of owning a derestricted ebike -you will love the difference!
  • Install it effortlessly- quick plug-and-play connection - no setup required.
  •  Feel safe for your e-bike and warranty- it's safe for ebike and undetectable to keep your warranty safe!

Quick plug-and-play installation. No setup!

  • Increase the speed limiter from original 16 mph (25km/h) to unlimited speed!
  • Enable/disable when needed! Just press 'LIGHT' or '↑ ↓ ↑ ↓' buttons or via SpeedBox App
  • Get after-sales support from us and a lifetime warranty from Speedbox

The bike feels completely different once derestricted - it's just like a whole different bike! The rides are so much more fun now! Tuning kits are safe to your bike and every ebiker should have one installed! You will love riding your ebike with it - guaranteed!

Matt - Owner of Two Wheels Empire



Product details

What does this Tuning Kit do?

Smart chip of the third generation with an option to set a speed limit of an e-bike. SpeedBox 3.1 tuning chip enables to select speed limit of your own choice. After the chip is installed, your e-bike’s display will show real data, such as maximum and average speeds, daily mileage and cruising range.

How does Speedbox Work?

The tuning kit manipulates the speed signal without altering the motor's power relative to pedaling speed. This guarantees a smooth motor control without speed limit interruptions. Depending on a tuning kit, some determine when assistance stops, while others remove the restriction entirely for continuous support. However, the achievable speed mostly depends on the eBike model. Achievable speed can be calculated using a simple formula:

Speed = Cadence [rpm] * Wheel circumference [mm] * Front Chainring Teeth / Rear Chainring Teeth * 60 [min/h] / 1.000.000 [mm/km]

The tuning kit can be activated directly on your bike’s display. After pressing the LIGHT button or ↑↓↑↓, a value of 99 km/h (62 mph) is displayed and from now on you will be able to ride at an unlimited speed.

To deactivate the tuning kit, press the LIGHT button or ↑↓↑↓ again. The value of 25 km/h (16 mph) will appear on your display and the speed limit will reset to 25 km/h. Your e-bike will then work the same as before installation of the chip.

You can set the maximum speed of an electric assistance by changing modes three levels down and then three levels up. An actual speed limit will be displayed after that. The maximum speed of an electric assistance can be switched by pressing LIGHT button shortly or by turning the rear wheel 360°. The last displayed limit will be saved after 5 seconds of inactivity.


Is this Speedbox the right tuning kit for my bike?

This tuning kit is compatible with Yamaha PW-X3 and PW-S2 only.

Does not work with these Yamaha e-bikes: MORO 07, Booster, Booster Easy, Wabash RT, CrossCore RC. These e-bikes are not tunable.

If you have Yamaha PW-SE / PW-X / PW-TE / PW-X2 you would need SpeedBox 3.0 for Yamaha PW-SE / PW-X / PW-TE / PW-X2 motors or bluetooth version SpeedBox 3.0 B. Tuning for Yamaha PW-SE / PW-X / PW-TE / PW-X2 motors

If your e-bike is Yamaha 2014-2018 with Yamaha PW, you would need this one - Yamaha PW


How to install this tuning kit?

When connecting the SpeedBox tuning kit to an e-bike you will find connectors colored to make installation very simple. We have prepared detailed instructions and videos to make installation easy for you. Disassembly of our tuning chip is just as easy. If you have any troubles with installation or disassembly, do not hesitate to contact us.

If you are planning to install SpeedBox on a brand-new bike, make sure you ride it for at least 0.6 miles (1 km) before the chip is activated

Installation Guide Video

Installation Guide PDF
https://cdn.shopify.com/s/files/1/0051/1515/0434/files/speedbox31yamahapwx3_4.png?v=1677760549


What is the Speedbox App?

SpeedBox App specifically designed for SpeedBox B.Tuning uses Bluetooth technology to connect your e-bike to your mobile phone. After downloading the application and connecting your phone to your electric bike, you can track the current data and riding parameters on your phone. You can save your trips, compare them with friends and monitor your own performance, so just enjoy the ride to the fullest and leave checking the parameters for later!

Main Features
Tuning Control - Changes the e-bike's speed limit from 25 km/h to unlimited mode.
Tuning Invisible Mode - Once you activate this mode, you won't be able to activate tuning with the walk/light button on your electric bike anymore
Motor Lock System (excluding Yamaha PW-X3 with interface X display
) - You can temporarily turn off the electric bike's motor in your mobile app to add another level of security to your lock.
Storing your e-bike’s ride data - Well-arranged database of your trips to monitor your own performance or compare it with friends.
Motor Diagnostics - Displaying real e-bike technical data on your mobile phone

SpeedBox B.Tuning chip can be used even without the SpeedBox App. However, it is a great accessory that will give you a complete overview of your performance.

Most sport apps use only rough estimates of values. That’s why these data may differ from the real electric bike data by up to 20%. SpeedBox App displays completely accurate data, which is read directly from the electric bike's control unit.

Google Play

App Store


Important legal note

Please note that the operation of this type of modified electric bikes on public roads may be against the law in some countries. The manufacturer takes no responsibility for damages resulting from the use SpeedBox products. Electric bikes equipped with SpeedBox products are not allowed to be used on public roads, cycling paths and public places. Electric bikes equipped with SpeedBox products can be used exclusively on private property and entirely at one’s own risk.

The use of SpeedBox may void the warranty of your ebike.

We strongly recommend using other safety features and protective gear to prevent injuries in higher speeds.

SpeedBox Products are thoroughly tested and we stand by their quality. SpeedBox provide Life Long warranty to all their Products!

If You have any questions, please do not hesitate to contact us. Thank you for looking! Two Wheels Empire Team