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  • SpeedBox 1.1 for Bafang Max Drive eBikes | 2020-21
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SpeedBox 1.1 for Bafang Max Drive eBikes | 2020-21

Lifetime warranty included with all Speedbox products

Regular price
$166.00 USD
Regular price
Sale price
$166.00 USD



1. All Speedbox products are thoroughly tested and safe for your eBike

2. Removes the 25 kmh restriction

3. Completely undetectable, can be deactivated at anytime

4. Maintain accurate speed, distance & range in mph or kmh

5. Simple installation with original connectors, no programming required


All Speedbox products come with a lifetime warranty

Made in Czech Republic, they are CE registered and perfectly safe for your eBike


Fast, Free Shipping to the UK

DHL Express Shipping to most of Europe, US, Canada & Australia

All non-UK orders are treated as exports. Check your country for customs/duty information

30 Day Returns/Exchange

Check out our detailed Shipping/Returns policy here



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. 


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.

Speedbox 1.1 Tuning Chip for Bafang Max Drive eBikes

  • Works with any ebike fitted with a Bafang Max Drive motors including; M300, M400, M420
  • Fitted to the motor in minutes for a true plug & ride experience
  • Increase your eBike's max assistance speed up to 50kmh
  • Display shows half values when active
  • Don't just take our word for it, scroll to the bottom and read the amazing reviews from other eBike riders. 
  • Please note: Not compatible with 2016-2019 Bafang motors.

SpeedBox 1.1 for Bafang Max Drive eBikes | 2020-21