Overview Reviews Product Description New Old StockShimano Dura Ace AX headset aero top capThis goes over your headset to make it more Aero! Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Dura Ace AX Headset Aero Cover Shimano Time Trial NOS Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments