Here's some information that most of your may not be aware of. I was trying to buy a second hub motor to use with my Farsports wheelset that's on the way to me, so I reached out to both Orbea and Mahle. Mahle says they only sell to manufacturers and not to individuals. Orbea said to contact my dealer. My dealer then contacted Orbea, and they will not sell any X35 components to anyone including their dealers. They say they are warranty partners with Mahle, but are not resellers of Mahle parts. So if you have a component failure is less than 2 years, your Orbea dealer can warranty the part through Mahle. But after 2 years it seems there is no avenue to purchase any part of the system including the batteries. Orbea also said a second hub motor would not work and would fault the system as all the hub motors are tied to the bike's serial number. This is not true as I know of an individual that is using the hub motor off a Cannondale Neo for his second wheelset, and it works perfect with no faults. Consider yourselves warned. If Orbea doesn't change their position, we'll all be stuck with devalued non e-bikes at some point.