The CycleOps PowerTap Pro Wireless Hub looks barely changed from last year save for the matte Black finish. The new color hides an important improvement. CycleOps found ways to carefully pare down the weight of the hub shell; the overall unit weight has been dropped by 25 grams.The Pro hub is equipped with an ANT+ transmitter. This means that the hub sends out a signal that can be understood and translated into power, speed, torque, and virtual cadence numbers by any computer head unit that reads ANT+ signals. Note this does not include the CycleOps Cervo head unit. The CycleOps PowerTap Pro Wireless Hub is Black and is available with spoke drillings for 20, 24, 28, and 32 spokes. The spoke hole diameter is 2.5mm, so it is compatible with conventional round, double-butted, and most modern oval-bladed spokes. The flange diameter is 70mm on both sides. The hub center- to-flange measurement is 31.7 mm for the non-drive side and 17.4mm for the drive side. It's available with a Campagnolo or Shimano/SRAM compatible freehub body. Should you purchase a wheel and need the other style, be aware that they can be swapped easily. After switching freehub bodies, the wheel will not need to be re-dished. The hub rolls on a 15mm-diameter aluminum alloy axle. Along with the hub, you'll get user instructions and the special tool for the end cap on the hub.Please Note: The Pro Wireless Hub does not come with a skewer.
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