Yea I crashed the original mavic pro and replaced it with the Mavic Air. The Air folds up so small, and the flymore combo fits drone, controller, charger and three batteries into a little shoulder bag that can fit in the tank bag. We usually keep the DSLR in the tank bag though and the drones in the big pelican case on the back of the bike. There are two main things I miss about the Pro. First, the ability to flip to portrait mode. A lot of what we post goes to mobile and I wish I could rotate the camera like you can on the pro. Secondly, if you do tracking with just your phone as the controller it only lets you fly 100yds from where you took off, whereas the pro has a dynamic homepoint so you could easily just keep the drone in your tank bag and not mess with the controller if you're trying to film while riding. To do that I have to plug my phone into the controller and it's just another hurdle in flying it to get some riding shots. None of that's what you asked... I had a purpose built knock-off pelican type case that I think came from eBay and it felt really secure. Probably too big for a tank bag though. They don't seem to be as fragile as I treat them (bonking it off the underside of a bridge and straight into the Spokane River not withstanding) so I bet some foam in a tank bag would be great.