Originally Posted by Joe Minton

Retro Grouch:
If by "delta tricycles" you mean one-wheel-in-front trikes, well --- it does not matter all that much. Very low CG delta trikes would be much less likely to overturn than those I see women (mostly) riding to the market to buy stuff. The dynamic issue is CG (center of gravity) travel as the lateral loads change.

A rather tall CG (upright riding position, big basket behind the seat trike) isn't the same as a dedicated sport-type trike.

Still, if you were to compare a 'delta' trike to a 'tadpole' trike (both having the same CG height) the tadpole trike could go around a corner or turn while braking at a higher lateral "g" loading than the equivalent delta trike before lifting a wheel.

Joe

BTW:
I was in charge of testing of the Honda ATC90 while was still a prototype. After two months testing I (and its designer) declared that it was, essentially unstable and its steering was counter-intuitive; I told them not to build it with one wheel in front. They built it anyway ($$$) and, literally, thousands of riders were killed or disabled as a result. -- JM