Rev Aero Extension Dura-Ace Di2 which features a cosy fleece

which features a cosy fleece upper and an insulating aluminum foil underside

plug and play solution to stay connected

ۢ High security

40% reduced pressure peaks with dual conic spring system

Rev Aero Extension Dura-Ace Di2 which features a cosy fleeceAirfoil shaping hugs the arm to optimize aerodynamic performance. Available in 2 heights (70mm & 120mm). 3D shape with 15mm offset grip provides comfort across rotational configurations. 30 deg grip angle provides a neutral wrist orientation, promoting upper body comfort. Matte black paint for a subtle aesthetic. Unidirectional carbon fiber construction creates an ideal strength to weight ratio.