SpeedFun Furious eBike Tuning Kit for Bosch Rim Magnet Performance Line CX - Gen5

• eBikes fitted with a Rim Magnet sensor (located on rear wheel valve)
• The eBike motor must be a Performance Line CX (gen5)
• 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 & Crestline S180

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

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

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

This product comes with a 1-year 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 and our team will assist you

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.