Shimano Dura Ace WH 9000 C75 Tubular Rear Wheel Parts Road Wheels

Shimano Dura Ace WH 9000 C75 Tubular Rear Wheel. When you seek to maximize your performance on race day in a time trial, triathlon, or flat road race, the super sleek, super aero Shimano Dura Ace 9000 C75 Tubular Rear Wheel has the champion's pedigree to ensure you'll be at your best. The C75 moniker means the tubular rim is constructed of high modulus carbon fiber with a 75mm rim depth which is worth its weight in gold against the clock or in flatter mass start events. The engineers at Shimano created a rim profile that slices through the wind and is optimized for typical wind velocity and wind angle conditions typically encountered on the bike. The Dura Ace 9000 C75 rear wheel sports Shimano's Opt Bal 2:1 spoke system which utilizes 14 spokes on the drive side and 7 spokes on the non drive side. This spoke distribution pattern, in conjunction with the wider flange aluminum hub, equates to optimal spoke tension for enhanced stiffness and strength. The drive side spokes are in a 3x lacing pattern while the non drive side spokes are radially laced. The spokes themselves are butted, bladed stainless steel for both strength and aerodynamics. The Dura Ace 9000 hub has a titanium freehub body to help minimize weight and is set up for 11 speed drivetrains. The spoke nipples are hidden to enhance aerodynamics while the 24mm rim width ensures plenty of surface area and a wide contact patch for gluing on a tubular tire.