Shimano Ultegra R8170 C36 Carbon Wheelset 28" 12x100mm 12x142mm E-thru - discussion

With the speed and efficiency of tubeless tires, the everyday performance of a shallow, aero profile carbon rim, and the convenience of 11 and 12-speed compatibility, the new ULTEGRA wheelset is an upgrade for any road bike.

Spokes diameter (mm): 2.0-1.6-2.0
Type: ROAD
Diameter: 622C
Axle fixing method: 12 mm E-THRU
Compatible cassette: 11/12 speed
Rim height: C36
Internal rim width: 21 mm
O.L.D.: 100 mm / 142 mm

Technologies
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
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