This is for all budding Mechanical Engineers, who need to study kinematics and how a car differential works. This is both illuminating and lucid, a very good combination! (In fact, even if you are not a Mechanical Engineer, do check this out, it’s actually pretty cool).
The actual business end of the video starts after a while; till then, enjoy the motorbike tricks. 🙂
Thanks, Seby, for this (I found this on his blog).