BadassBox 5 Tuning Kit for Bosch Rim Magnet eBikes - Gen5 CX (Preorder, ships 19th May)

Why choose this product:

• Easy to install, no specialist tools or skills required
• Permanently overrides 25kmh factory speed limit once fitted
• AAA battery for range in excess of 7,000km
• Designed & manufactured in Germany
• Boost Buddy App for your correct speed on iOS and Android
• 30 day money-back guarantee

• eBikes fitted with a Bosch Performance Line CX Gen5 motor only
• eBike must also have a Rim Magnet sensor (located on rear wheel valve)

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.

We ship fast and free to the UK, USA, Australia & Canada. All orders are fully tracked and dispatched from our UK warehouse.

✅ Tariff-free shipping to the USA & Australia.

❌ Note: Orders to Canada may incur customs charges. Free shipping doesn’t apply to EU/EEA countries.

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