Download files from iPad Pro to flash drive

I am specifically looking at a mapping app that I use (MyRouteapp.com) on my iMac and on my iPad Pro. I can open the app on my Pro via Safari and the app website, then create routes as .gpx files. When I'm traveling, I want that capability strictly via my Pro, but want to be able to then put those files on a flash drive to plug into my motorcycle (Harley-Davidson) mapping device--it's built into the motorcycle dash, not a removable device.

Can I do that using the SanDisk Connect wireless flash drive...or their plug-in flash drive?