I used maps.me on my 7 in Europe (Italy, France, Belgium) and it worked great with my phone on airplane mode, so no data required. Full disclosure though, I was either walking or driving in a vehicle and sadly not on a motorcycle. Only consideration is that you need to download the required map areas onto your phone while connected to wifi and good signal on the road can be a challenge. I would recommend this app if you can plan ahead and download the area you need before your trip. I really like the feature of saving (pinning) points of interest, where you are staying, etc ahead of time. The app is free and appeared current with good features like finding stores, gas, etc nearby.