Always staying ahead of the packas in the 2 way fit version the shamal ultra wheels for tubular or clincher roll to the starting line with the best performance ever megag3 and the oversized flange make this wheel extremely quick off the line and reactive featuring a full 17 increase in reactivity over the previous versionthis incredible improvement in performance along with the extreme smoothness of the ceramic ball bearings will enable you to transfer all the power of your pedal st