VOLspeed V4 for Bosch eBike Tuning Kit (excludes bosch smart system)

Name: VOLspeed V4 for Bosch eBike Tuning Kit (excludes bosch smart system)
Rating: 4.9 (369 reviews)

VOLspeed V4 for Bosch eBike Tuning Kit (excludes bosch smart system)

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£145.75GBP

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Easy Installation

2-Year Warranty

The VOLspeed V4 is one of our highest rated and reliable eBike tuning kits available for Bosch motors.

Designed for riders who want more speed and control, this plug & ride kit removes the 15mph or 20mph speed restriction on Bosch powered eBikes (excludes smart system), allowing assisted speeds up to 28mph (45km/h).

Compatible with any non-smart Bosch motor from 2014 including; Bosch Performance Line, Performance Line CX, Cargo Line, and Active Line motors. The updated V4 version is fully compatible with the 15.24 software update.

Installation is quick and simple with just a few basic tools needed. Once fitted, it's hidden neatly inside the motor cover resulting in a clean, OEM style finish.

Why Riders Choose VOLspeed V4:

✅ Removes factory speed limit, unlocking speeds up to 28mph (45km/h)

✅ Plug & ride install, no motor removal

✅ Full use of display, accurate readings above the factory speed limit

✅ Stealth install, completely hidden inside the motor casing

✅ Compatible with software versions up to 15.24

Please note:
If your bike is from 2023 onwards, it will have a smart system motor (shop here). If you're If you’re unsure about your setup, contact our support team to check compatibility.

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

The VOLspeed V4 is one of our highest rated and reliable eBike tuning kits available for Bosch motors.

Designed for riders who want more speed and control, this plug & ride kit removes the 15mph or 20mph speed restriction on Bosch powered eBikes (excludes smart system), allowing assisted speeds up to 28mph (45km/h).

Compatible with any non-smart Bosch motor from 2014 including; Bosch Performance Line, Performance Line CX, Cargo Line, and Active Line motors. The updated V4 version is fully compatible with the 15.24 software update.

Installation is quick and simple with just a few basic tools needed. Once fitted, it's hidden neatly inside the motor cover resulting in a clean, OEM style finish.

Why Riders Choose VOLspeed V4:

✅ Removes factory speed limit, unlocking speeds up to 28mph (45km/h)

✅ Plug & ride install, no motor removal

✅ Full use of display, accurate readings above the factory speed limit

✅ Stealth install, completely hidden inside the motor casing

✅ Compatible with software versions up to 15.24

Want to read more about it? Scroll down to see all of the wonderful reviews or check out our full write up here

Please note:
If your bike is from 2023 onwards, it will have a smart system motor (shop here). If you're If you’re unsure about your setup, contact our support team to check compatibility.

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

The VOLspeed V4 is one of our highest rated and reliable eBike tuning kits available for Bosch motors.

Designed for riders who want more speed and control, this plug & ride kit removes the 15mph or 20mph speed restriction on Bosch powered eBikes (excludes smart system), allowing assisted speeds up to 28mph (45km/h).

Compatible with any non-smart Bosch motor from 2014 including; Bosch Performance Line, Performance Line CX, Cargo Line, and Active Line motors. The updated V4 version is fully compatible with the 15.24 software update.

Installation is quick and simple with just a few basic tools needed. Once fitted, it's hidden neatly inside the motor cover resulting in a clean, OEM style finish.

Why Riders Choose VOLspeed V4:

✅ Removes factory speed limit, unlocking speeds up to 28mph (45km/h)

✅ Plug & ride install, no motor removal

✅ Full use of display, accurate readings above the factory speed limit

✅ Stealth install, completely hidden inside the motor casing

✅ Compatible with software versions up to 15.24

Want to read more about it? Scroll down to see all of the wonderful reviews or check out our full write up here

Please note:
If your bike is from 2023 onwards, it will have a smart system motor (shop here). If you're If you’re unsure about your setup, contact our support team to check compatibility.

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

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Frequently Asked Questions

What is your shipping & returns policy?

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

What eBikes is it compatible with?

Works with any eBike fitted with a Bosch motor excluding smart system - 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

What are the benefits of this product?

Easily set a custom max speed on your eBike up to 45kmh (28mph)

Once fitted all ride modes work exactly the same including 'walk mode'

Full speed readings in kmh or mph when active

Completely undetectable and can be switched on/off at any time

2-year warranty included

How is this installed?

VOLspeed V4 is easy to install, you can take a look at the instruction manual here

Alternatively, check out this youtube video

How does the warranty work?

In the unlikely event your product develops a fault or defect. We will replace it under warranty. All VOLspeed products come with a 2-year warranty.

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

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.

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.

Really good, I’m very impressed with the VOLspeed v4 from E-BIKE TUNER, easy to install and the difference is amazing…… also a very good company to purchase from. Highly recommend