I don't get it
If turning left = bike going faster than sidecar, I'm presuming that the sidecar is on the driver's left? So how does one "waggle the sidecar wheel in the air round left-handers"?
(Vice Admiral Sir Charles Cockbrush KCB MBE DSO, who is finding it increasingly difficult to log into b3ta.com wants to duck your aunt and kick your puppy, Wed 27 Jan 2010, 9:44, 1 reply)

Centripetal? Centrifugal?
I can never remember which is which. But forces generated during cornering push away from the radius of the curve - this is why you get pinned to the back of your seat on the waltzer, and indeed why solo bike riders lean into the turn, to counteract the effect. The connections to your sidecar are (hopefully) rigid, so you can't lean; about the only counter-measure is to load up ballast and/or passengers - look how racing sidecar passengers shift position - although you're better off pillocking around in a car park learning when the wheel will lift.

Actually, once the wheel is lofted, you can achieve another equilibrium - this chap's sidecar is on the right-hand side, but the principle is the same. Some quite impressive waggling, IMHO.
(Mr Apollo Follow me!, Wed 27 Jan 2010, 12:14, closed)

I'm not really a fan of motorbikes and all that, BUT that video of the dude on the kawasaki kicks ass.
(mersault, Wed 27 Jan 2010, 13:08, closed)