Stability Index.
An ICE invention designed to help people who can't test ride every trike in our range, it is a score out of ten for 'Tippy-ness'. Our trikes are so stable this is only really noticed when cornering. It does have some bearing on the performance of a machine when ridden very fast in a straight line. Basically the higher the "Stability Index" score, the easier it is to ride fast through a corner. This is not to say that one of our trikes with a low score can't be ridden very fast - it can, you just have to concentrate a bit more and in a tight corner, lean more!