Over the years, we at Yuba have used different systems to meet the power assist needs of our riders. 

The following information is intended to point our riders to the correct channel if they require technical support for the power assist systems on their bicycles.


eZee Front Hub motors originally installed on Mundo models until 2013. 

  • Batteries can be rebuilt with new cells by EBike Marketplace in Las Vegas, NV


    • 888-456-9410 or Sales@ebikemarketplace.com

  • There are currently no known service centers for these motors in North America


BionX rear hub motors were installed on both Mundo and Boda Boda models from 2013 through 2015 in 350 watt / 36 volt, 350W / 48V and 500W / 48V versions. 

  • In February, 2018 the BionX corporation shut down all operations.

  • As of 4/1/2019 their BionX Bicycle Interface is still active and can be used to diagnose system problems

  • Replacement components can be ordered from BionX Legacy in Canada


The first version of our Spicy Curry bicycle used the Trans-X mid-drive motor by Currie Technologies. It is a 350 watt / 48 volt system and is still supported by Raleigh Electric 


The eRad mid-drive system by Lectric Cycles was installed on both Mundo and Boda Boda models during 2017 in both 350 watt / 48 volt and 500W / 48V versions. The mid-drive motor is produced by Bafang and is compatible with all like components.


We understand the significant investment you’ve made in your electric cargo bike and we will support a discount on our current model bikes. For original owners of the above mentioned Yuba e-bikes who would like to upgrade, Yuba will offer the following pricing. 

Please contact us for details.

  • Spicy Curry - $3000

  • Electric Boda Boda - $2500