Shimano Ultegra WH-R8170 29/28" (622 mm) Disc Brakes 12x100-12x142 Center Lock Pair of Wheels 50 mm Wheels

Balancing aerodynamics, weight, and affordability, the ULTEGRA R8170 C50 wheelset is sure to inspire action on your group ride with its all-new tubeless carbon rim and updated, 12 and 11-speed compatible hub. 50 mm height full carbon rim Internal rim width: 21 mm Spokes diameter (mm): 2,0-1,6-2,0 Type: ROAD Diameter: 622C Axle fixing method: 12 mm E-THRU Brake type CENTER LOCK disc brake Rear speeds: 12 / 11 O.L.D.: 100 mm / 142 mm Material: Aluminum/ Carbon Technologies Optbal The OPTBAL rear wheel spoke system features 21 spokes—14 on the drive side and 7 on the non-drive side. Cassette spacing in today’s wheels produces unbalanced tension in traditional 1:1 spoke systems. This unbalance is intensified with the 11-speed cassette, producing nearly double the tension on the drive side spokes. Generally high and low tension spokes have respectively tendency toward breaking down and coming loose spoke nipples. Unbalanced tension affects durability and strength. The OPTBAL design rebalances spoke tension, enhancing wheel rigidity and strength for a more durable wheel. D2 Aerodynamic performance is affected by wind direction. To create the D2 rim, SHIMANO engineers considered both frontal and cross winds, aiming to achieve optimal performance in real-world riding conditions. Extensive prototype testing, in the wind-tunnel and on the road, proved that a wide rim shape with a deep tire bed performs best across a wide range of conditions. At yaw angles ranging from 0 to 15 degrees, the SHIMANO D2 rim profile reduces air drag better than others aero shape rims. This rim design also boosts lateral wheel stiffness and offers improved vertical compliance for increased control, comfort and durability on the road. Center Lock The CENTER LOCK system makes an easy rotor installation possible with spline mount and a lock ring. The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation. In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency. E-Thru Axle The tool-less type thru-axle skewer system optimizes rigidity and weight balance and enables easy operation with a reliable internal cam mechanism. The 15 mm thru-axle system is 15% stiffer torsionally and 25% stiffer in transverse shear than a traditional 9 mm quick release front axle system. High rigidity is secured while keeping the optimum weight balance. The E-THRU axle hub system minimizes the distortion of suspension while maintaining lightweight for riding around sharp corners at high speed. An 8 mm thru-axle system for the trekking/hybrid hub and dynamo hub and a 12 mm thru-axle system for the rear are also available. LEAVE TIME BEHIND Escape the everyday stereotype, discover endless possibilities and a feeling of freedom. Find out what really matters and get ahead of time with the new Ultegra. Made in: Malaysia Colour: Black Weight (g): 1680.0 Material: Carbon fibers Axle Standard: 12x100;12x142 Brake Type: Disc Brakes Wheel Diameter: 29/28' (622 mm) Number of Spokes: 24 Rim Height: 50 mm Disc Mounting System: Center Lock Inner Rim Width: 21.0 Special Features: Tubeless Ready Usage Bikesport: Road Type of Product: Pair of Wheels

Product Shimano Ultegra WH-R8170 29/28" (622 mm) Disc Brakes 12x100-12x142 Center Lock Pair of Wheels 50 mm Wheels is marked by the EAN code 4550170891503.