17 more reactive than the last versionshamal ultra 2 way fit the top of the line aluminium wheel has outdone itself again now featuring record setting performance features for enthusiasts as well as for the most demanding professional racersthanks to the innovative design of the rear flange and the new megag3 system all the power of the pedal stroke is transferred to the rear wheel insuring maximum use of power and truly unexpected sensationsand now in addition to extreme smoothnes