SpeedFun Furious eBike Tuning Kit for Bosch Rim Magnet Performance Line CX - Gen5 (preorder ships w/c 7th April)

SpeedFun Furious eBike Tuning Kit for Bosch Rim Magnet Performance Line CX - Gen5 (preorder ships w/c 7th April)

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£249.00GBP
£249.00GBP
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SpeedFun Furious is a tuning kit for eBikes powered by a Bosch Performance Line CX (Gen5) motor + Rim Magnet Sensor.

Once fitted, it will remove the factory 15mph or 20mph speed limit. Derestricting the bike fully. 

Speedfun works with eBikes fitted with or without a display. 

It's fully tested on the latest 13.13 Bosch update and comes with a 1-year warranty.   

Important, please read before purchasing

Unfortunately this kit does not work with 2025 Mondraker Crafty Carbon's

This is a moderate to hard installation (see this install video). The kit comes with 3 components; tuning module, replacement speed sensor & electromagnet unit. Some bikes will require the motor to be dropped down in order to fix the electromagnet. The OEM speed sensor is removed and replaced with a wired sensor fixed to the chainstay.

If you are not comfortable handling your bike's motor, you should seek a professional for help with the installation. Once your order is placed, we will contact you on email for a compatibility check. 

Don't miss our multi-buy discount when you buy 2 or more eBike tuning kits!

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Frequently Asked Questions

Shipping & Returns Policy

Fast & free shipping to UK, USA, Australia & Canada

All orders are shipped fully tracked from our UK & US warehouses

Import-free shipping to the USA, Australia & Europe

Free shipping does not apply to EU and EEA countries

In the unlikely event you have trouble with your order, or you just change your mind. We offer easy, 30 day returns. 

Detailed Shipping/Returns info here

What eBikes is this compatible with

  • eBikes fitted with a Rim Magnet sensor (located on rear wheel valve)
  • The eBike motor must be a Performance Line CX (gen4)
  • We have successful installs on these bikes (others tbc); Focus Jam2, Santa Cruz Vala, Trek Rail & Powerfly, Cube Stereo ONE55, Cannondale Moterra, Canyon Strive Underdog, Haibike CF11
  • Unfortunately this kit is not compatible with 2025 Mondraker Crafty Carbons

Why choose this tuning kit

Here's why riders love this tuning kit

  • Once fitted, enjoy a complete derestriction
  • Permanent tuning, no activation required
  • Tested on latest Bosch update
  • 1-year warranty included

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

Important Legal Notice

Existing eBike Warranty:
The use of any tuning products may void the warranty of your eBike. We take no responsibility for any damages resulting from the use of any of our products.

eBike Laws:
Electric bikes equipped with tuning devices are not allowed to be used on public roads, cycling paths and public places. Electric bikes equipped with tuning products can be used exclusively on private property and entirely at one’s own risk. Under the EU's EN15194 regulation it is illegal to ride your eBike on public roads/cycle paths with a tuning device fitted. 

By purchasing a device from eBike tuner ltd you agree that eBike tuner ltd cannot be held liable for any damage, injury, fine or cost to you, your eBike or anyone else involved in your particular incident.

How does the warranty work?

In the unlikely event your product develops a fault or defect. We will replace it under warranty. This product comes with a 1-year warranty.

To claim under warranty, simply contact us here and our team will assist you

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