[Youming Qin et al.] explored cutting that dead weight as much as possible and came up with Hybrid Aerial-Ground Locomotion with a Single Passive Wheel. As the paper’s title made clear ...

[XenonJohn] wrote in to let us know about updates and a recent test drive of an Electric Self-Balancing One-wheeled ... now has a super fat kite-surfer wheel, a front crash skid with damper ...

I understand why consumers ask these questions. Tire balancing coupled with wheel alignment can be expensive. So let's look at why balancing new tires and performing a wheel alignment are necessary.