Originally Posted by
kyakdiver
I'm not sure.... The instructions don't show the knobs going anywhere that I can see. If they went on the risers I haven't been able to figure out where.
kyakdiver
The instructions were probably written back before those knobs were born. That's why they're not mentioned.
I don't have the 700c version, but my impression is that they sit underneath the vracks inside the upright tubes on the freeradical frame. They serve to boost the racks, and likewise the snapdeck, and afford a little more clearance for the wheel.