Shimano Dura-Ace RT-CL900 Disc Brake Rotor with Lockring - 160mm, CenterLock, Silver Bike Accessories Brand_Sturmey Archer Technology : X-Comfort Zone -

Technology : X-Comfort Zone - Ventilated expandable zone to accommodate a variety of feet widths and prevent numbness - Increased arch support and power transfer

Minimal silicone grippers give it that barely there feeling that is critical for a comfortable under-your-helmet fit

Pass-through charging

Vittoria 3C is a stratification process that uses three different rubber materials for the same tire

Chainrings sold separately

Shimano Dura-Ace RT-CL900 Disc Brake Rotor with Lockring - 160mm, CenterLock, Silver Bike Accessories Brand_Sturmey Archer Technology : X-Comfort Zone -The Shimano RT CL900 disc brake rotor provides quiet and consistent braking control for any terrain. Consistent braking performance on any long, steep descent thanks to excellent heat dissipation Robust arm shape for quiet operation without sacrificing weight or heat dissipation Heat dissipation paint boosts performance Includes lock ring with internal serration Rotor Type: Two Piece Hub Disc Compatibility: Center Lock Rotor Size (mm): 160 Pad