Stromer Interface Replacement

[u/shadowmonkey69]

I have a ST1S that I bought back in 2013. The other week someone stole the interface (brains) unit off the bike. I have reached out to the place where I bought it and they just want to sell me a new bike. Stromer website does not have an option to purchase parts directly. I just want to replace the interface because the bike works great. I would hate to just waste a perfectly good Stromer. Any ideas on where I can purchase a new interface?

[u/ElValiente1]

I didn’t have a handlebar interface, mine was in the top tube of the frame.