Speedbox 3.1B for TQ HPR40 / HPR50 / HPR60 eBike Tuning Kit

Name: Speedbox 3.1B for TQ HPR40 / HPR50 / HPR60 eBike Tuning Kit
Rating: 4.9 (17 reviews)

Speedbox 3.1B for TQ HPR40 / HPR50 / HPR60 eBike Tuning Kit

Product variants

Pre-order

$388.00

Sale Sold out

Quantity

UK stock, free tracked delivery
30-day returns, Lifetime Warranty

DIY Install

Plugs into your existing wiring, nothing permanent. Video guide included.
Removes 15.5mph limit

Switch between standard and tuned mode at any time.
Not sure it fits?

Check your bike in our Kit Finder → or send us your make, model and year.
Real UK support

A real person helps by email or WhatsApp if you get stuck.

Preorder, stock due 2nd November

Designed for riders who want to get more speed from their TQ motor. Once activated, this tuning kit removes the 15mph or 20mph factory speed limit whilst maintaining accurate speed & distance on the display. Compatible with HPR40, HPR50 or HPR60 motors only

With it's built-in bluetooth connection, you can control the chip via the Speedbox Connect app. Within the app you can set a custom max speed, turn the chip on/off and track your rides in real time. Alternatively, you can activate this Speedbox using the WALK or +/- buttons (if your bike has them)

✅ Removes factory speed limit completely
✅ Stealth install, completely hidden
✅ Accurate speed & distance
✅ Lifetime warranty included

Installation Info (read before you buy)
To install this kit you will need to connect to the bike's display & motor. You don't need to remove the motor but tools & some general bike knowledge will be required. Full wiring diagrams and the install video are in our help centre guide

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

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Frequently Asked Questions

Will this work with my eBike?

eBikes powered by TQ HPR40 / HPR50 / HPR60 motors
Must be fitted with TQ HPR Controller

Why choose this tuning kit

Here's why riders love this tuning kit

Clean, OEM style finish once fitted
Simple activation, can be switched off at any time using the handlebar controls
Completely removes 15mph or 20mph restriction plus accurate speed & distance on the display
All ride modes work exactly the same, including ‘walk mode’
Lifetime warranty with all Speedbox tuning kits

What is your shipping & returns policy?

🇬🇧 UK

Free delivery to the UK with Royal Mail Tracked 48. Tracked 24 is available as a paid option.

🇺🇸 USA

Free shipping on all orders, takes 5-7 business days.

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, takes 7 business days. WA takes 14 days.

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 Royal Mail. Delivered to you by Canada post.

Canadian orders are 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

How to avoid error codes

Unfortunately no tuning kits are 100% guaranteed. You can reduce the risk of triggering an error code by following these simple steps:

If your eBike uses a smartphone app, switch off automatic updates before installing your tuning kit

Remove your tuning kit before doing any software updates

If possible, remove your battery before starting your installation

Keep your average speed below 50km/h

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

A note on 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.