The c55a wheelset is a great set of wheels for use in mixed conditions be it a triathlon road race or a ride on your favourite route at 55mm deep and with an aero profile these wheels will have you speeding along like a greased horse in a vacuum the shape of the rims allows you to slice through the wind and when there is a crosswind the shape also keeps things stable the c55a wheelset is a great choice for someone looking to upgrade to a faster set of wheels that can handle lots of differ