410MAKHDT9L. SL160  2006 Carnac Helium Carbon Road Bike Shoe 2006 Carnac Helium Carbon Road Bike Shoe The backbone of the Carnac Helium Carbon is its MFC5 White Carbon sole. Identical to the sole used on the M5 Carbon, it’s gives the Helium Carbon phenomenal lightness and stiffness at 305g. The MFC5 sole eliminates the need for cleat adapters. This further saves weight, and it lets you feel closer than ever to your pedals, while giving you absolutely flex-free performance from the soles.

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