Aero 40mm tubeless, 425g disc-specific carbon fiber rims with molded spoke and valve holes \n - Innerdrive J-bend hubs laced with Sapim CX-Ray J-bend spokes \n - Recommended tire size: 27mm-50mm \n - Performance versatility for road and gravel use \n - Pinch flat technology with 3.6mm wide hookless bead \n - Size 27mm wide tires must be tubeless and listed as "approved/recommended" on ENVE's tire compatibility page \n - For use with tubeless tires only \n - Complete wheelset weight: 1550g