Well, the picture you have there does not show inline/'cyclocross' levers. It shows bar-end, or ''time trial' style levers. The Tektro TL720, not the BL720 are this time trial style.

Time-trial:



Inline:



You may be able to fit inline levers on the ends like that if your bars do not taper significantly, but if you haven't already purchased them, get the time trial levers instead.