Yes, but there’s an optional action cam mount. Unfortunately it’s not available yet.
I tried mounting a full-sized Osmo on Benny Bloss a while back, but it couldn’t handle the g-forces on a SX track.
The Osmo mobile looks like a great piece of kit but the first crash on a moto it will be toast. Get a Gopro Hero 7, way more durable for moto and easier to mount.