Lets talk about the castelli ar 41 jersey fz the castelli aero race 40 became a bit of a classic this is the jersey that lets not forget was worn to victory in the giro ditalia it was always intended as a full on race jersey but it was always just a little bit more the classy good looks and a cut and fit that flattered tour and non tour winners alike meant it has always been popular with riders as well as racers so when castelli updated the 4 to the 41 its this other side of the rem