VOLspeed V4 for Bosch eBike Tuning Kit (excludes bosch smart system)
VOLspeed V4 for Bosch eBike Tuning Kit (excludes bosch smart system)
⚡ Unlock speeds up to 28mph (45km/h)
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Derestrict your Bosch powered eBike up to 28mph (45km/h) with our bestselling tuning kit. Plug & ride installation, no motor removal needed — most riders are up and running in under 20 minutes.
Hidden neatly inside the motor casing for a clean, undetectable finish. Full use of your display with accurate speed and distance readings above the factory limit.
Works with: All non-smart Bosch motors (2014–2022) including Performance Line, Performance Line CX, Cargo Line, and Active Line. Compatible with the most recent software version.
🔀 Bike from 2023 onwards? You'll need a Smart System version instead, use our tuning kit finder tool here to find the perfect kit. Or contact us directly here if you're unsure.
✅ Speeds up to 28mph (45km/h)
✅ Plug & ride — no specialist tools
✅ Stealth install, completely hidden
✅ Accurate speed & distance
✅ 2-year warranty included
⚠️ For off-road use only. Read full legal disclaimer
Derestrict your Bosch powered eBike up to 28mph (45km/h) with our bestselling tuning kit. Plug & ride installation, no motor removal needed — most riders are up and running in under 20 minutes.
Hidden neatly inside the motor casing for a clean, undetectable finish. Full use of your display with accurate speed and distance readings above the factory limit.
Works with: All non-smart Bosch motors (2014–2022) including Performance Line, Performance Line CX, Cargo Line, and Active Line. Compatible with the most recent software version.
🔀 Bike from 2023 onwards? You'll need a Smart System version instead, use our tuning kit finder tool here to find the perfect kit. Or contact us directly here if you're unsure.
✅ Speeds up to 28mph (45km/h)
✅ Plug & ride — no specialist tools
✅ Stealth install, completely hidden
✅ Accurate speed & distance
✅ 2-year warranty included
⚠️ For off-road use only. Read full legal disclaimer
Derestrict your Bosch powered eBike up to 28mph (45km/h) with our bestselling tuning kit. Plug & ride installation, no motor removal needed — most riders are up and running in under 20 minutes.
Hidden neatly inside the motor casing for a clean, undetectable finish. Full use of your display with accurate speed and distance readings above the factory limit.
Works with: All non-smart Bosch motors (2014–2022) including Performance Line, Performance Line CX, Cargo Line, and Active Line. Compatible with the most recent software version.
🔀 Bike from 2023 onwards? You'll need a Smart System version instead, use our tuning kit finder tool here to find the perfect kit. Or contact us directly here if you're unsure.
✅ Speeds up to 28mph (45km/h)
✅ Plug & ride — no specialist tools
✅ Stealth install, completely hidden
✅ Accurate speed & distance
✅ 2-year warranty included
⚠️ For off-road use only. Read full legal disclaimer

Frequently Asked Questions
Will this work with my eBike?
Works with any eBike powered by an older Bosch motor (2014-2023). These motors have square ports on them.
For bikes from 2023 onwards with round ports on them, you will have a 'smart system' motor - shop here
Please note, this tuning kit only works on eBikes with 25-32kmh factory speed limit. Youth (20kmh) & Class 3 (45kmh) are not supported
How long does it take to fit?
VOLspeed V4 is easy to install, most riders are up and running within 30 minutes. You can take a look at the instruction manual here
Alternatively, check out this youtube video
What's covered by the warranty?
All VOLspeed products come with a 2-year warranty. In the unlikely event your product develops a fault or defect. We will replace it with a new one.
To claim under warranty, simply contact us here and our team will assist you
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
Firmware Updates
Updating your eBike’s motor firmware may block or disable your tuning kit.
We recommend avoiding firmware updates 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.
As described easy installation quick delivery
Brilliant service, I wasn't sure which kit fits my bike, i made email enquiry and Dianne got straight back to me with information as to what I needed, prompt dispatch and delivery, kit was simple to fit to my whyte easy to operate I've set a speed limit but i haven't tried it yet due to the weather,
As described. Installed on a Niner RIP9e. Easy install and it gets to 28 MPH.
Great addition to the already brilliant Bosch motor.
Simple to use and cheap to install
I wasn’t sure which product to buy so I contacted the company and got a fairly immediate response, after taking their advice and putting the order in the item literally arrived within 48 hours, in my case I had to remove the crankshaft which I really enjoyed learning about but but it’s still only took quarter an hour to fit but it’s still only took quarter of an hour to fit. normally on my KTM when I hit 15 mph, it was like cycling through sandbut now I could be up to 30 miles an hour and it really has added a whole new enjoyment level but still within pretty safe limits. I highly recommend this company that helpful communicative what mortgage you ask.
What are the benefits of choosing a VOLspeed tuning kit?
Made in Germany, VOLspeed have been developing eBike tuning kits since 2017. All VOLspeed tuning kits are made using the highest quality components and are built to last.
- Break free from limits and unlock the true potential of your eBike
- Enjoy full functionality of your bike & accurate speed readings
- Easy installation for a true plug & ride experience
- Completely undetectable once fitted
- Made in Germany with a 2-year warranty
VOLspeed V4 Features
- Safely increase your bike's speed limit up to 45kmh (28mph) Switch it on or off at anytime using your handlebar controls
- Easy Plug & Ride Installation In most cases no specialist tools or skills are required. Check out our FAQ section at the bottom of this page for an install guide
- Completely Undetectable No need to worry about detection, simply remove the chip before getting your bike serviced
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