3t accelero 40 team wheelset stealthaccelero 40 stealthis a light strong clincher wheel with outstanding aerodynamic performance shaped by the same windtunnel studies as the mighty mercurio tubular wheel the structure of the aero rim 43mm deep x 23mm wide is carbon fiber which is bonded to a 6000 series alloy tire bedbrake track extrusion this means the rim is light and braking is effective using standard brake blocks for alloy rims the structural carbon fiber rim is thicker where it