K75s came with three different handlebars;

Short which had a 2 3/4" rise and only came on the K75S (and the K100RS). These are known as the S bars.

Medium which has a 4" rise and came on some K75 standards, Ts, and Cs. These are known as C bars.

Tall which has a 7 1/2" rise and came on all RTs, some standards, Ts and Cs. These are known as RT bars.

If you don't have an S or an RT, it will have C or RT bars depending on how it was ordered.

It was a common swap for less flexible (read older) S riders to add C bars for a more upright riding position.