Originally Posted by alcjphil

At 30- 34 kph your current wheels are not holding you back. The wheels you are looking at at best will give you an extra .5 kph. Training harder will give you a lot more. My first sub 1 hour 40 km time trial was done with standard non aero road wheels. The only modification I made to my bike was a set of clip on aerobars. The wheels you have are already quite aerodynamic. the gains you make will be almost too small to notice