• Speedbox 3.3 B.Tuning for Yamaha PW-X3 / PW-S2 -1
  • Speedbox 3.3 B.Tuning for Yamaha PW-X3 / PW-S2 - 2
  • Speedbox 3.3 B.Tuning for Yamaha PW-X3 / PW-S2 - 3
  • Speedbox 3.3 B.Tuning for Yamaha PW-X3 / PW-S2 - 4
  • Speedbox 3.3 B.Tuning for Yamaha PW-X3 / PW-S2 - 5
  • Speedbox 3.3 B.Tuning for Yamaha PW-X3 / PW-S2 - 6
  • Speedbox 3.3 B.Tuning for Yamaha PW-X3 / PW-S2 - 7
  • Speedbox 3.3 B.Tuning for Yamaha PW-X3 / PW-S2 - 8
  • Speedbox 3.3 B.Tuning for Yamaha PW-X3 / PW-S2 - 9
  • Speedbox 3.3 B.Tuning for Yamaha PW-X3 / PW-S2 - 10
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Speedbox 3.3 B.Tuning for Yamaha PW-X3 / PW-S2 eBike Tuning Kit

Speedbox 3.3 B.Tuning for Yamaha PW-X3 / PW-S2 eBike Tuning Kit

Removes 15mph Limit | Lifetime Warranty

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Enjoy 30 days of free returns, with less than 1% of riders asking for their money back — plus a full warranty on all tuning kits.

Unlock the full potential of your Yamaha powered eBike with this eBike tuning kit. Works seamlessly with any Yamaha PW-X3, PW-S2 or PW-XM motor. It removes the 15mph or 20mph factory speed limit, allowing you to enjoy faster, unrestricted rides. Once fitted, it can be switched on or off at anytime using the handlebar controls.

With this premium bluetooth version, you can control the kit using your phone as well as track rides in real time. If your bike has an Interface X controller without speed readings, we highly recommend this version.

Click here to access a full install video for this kit. Please note, this product is not compatible with;

  • Yamaha PW-X / PW-X2 / PW-SE / PW-ST / PW-TE / PW-CE motors (shop here)

⚠️ For off-road use only. Not legal on public roads. Read full legal disclaimer.

Will this kit work with my bike?

  • Works with any eBike fitted with a Yamaha PW-X3 or PW-S2 Motors only
  • Not compatible with any Giant brand eBikes

How long does it take to fit?

We've rated this as an Easy, plug & ride installation

What is your shipping & returns policy?

We ship fast and free to the UK via Royal Mail Tracked 48. Tracked 24 is available as a paid option.

🇺🇸 USA

Free shipping on all orders

Your parcel is exported from the UK and handed to USPS for final delivery.

All tariff charges and import paperwork is handled by us. No surprise customs bills on arrival.

🇦🇺 Australia

Free shipping on all orders.

Parcels are delivered by Australia Post once they reach your local network.

We manage all import paperwork, so you won’t receive any unexpected fees.

🇨🇦 Canada

Shipped from the UK with full tracking via FedEx

Canadian orders may be subject to import duties or customs charges on arrival.

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Changed your mind? No problem. We offer 30-day returns — no hassle, no stress.

If something’s not right, we’ll sort it.

🔍 See full Shipping & Returns info here

What's covered by the Lifetime Warranty?

All Speedbox products come with a lifetime warranty. In the unlikely event your product develops a fault or defect. We will replace it for free.

To claim under warranty, simply contact us here

eBike firmware Updates

Updating your eBike’s motor firmware may block or disable your tuning kit.

We recommend avoiding firmware updates especially through service centres unless absolutely necessary. Most updates are optional, and a working eBike doesn’t usually need one.

Keep in mind:

✔ Firmware upgrades can remove tuning compatibility

✔ Tuning is only guaranteed to work with the firmware version available at time of purchase

✔ A blocked tuning kit due to a firmware update is not covered under warranty

If you’re unsure, reach out before updating. We’re here to help you keep your ride running exactly how you like it.

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