Shimano 105 HB-R7000 Front Hub The Shimano 105 Rear Hub has been redesigned and improved upon to provide you with the same high quality and performance of the newest Ultegra and Dura Ace group-sets, but at a more affordable price-point. They're smooth, quiet and compatible with 9/10/11 speed cassettes, making them an ideal centerpiece to your new disc wheel build. The Shimano 105 HB-R7000 Front Hub is extremely durable and provides smooth rolling for sustained performance. Lace up to the rims of your choice and rest assured that you'll be rolling smooth for miles to come. Features Internal O-rings and grease sleeve High quality sealing Cup & Cone Bearing High durability, smooth rolling for sustained performance Color options: Silky Black & Spark Silver | Shimano | 105 Hb-R7000 Front Hub | Black | 100Mm Qr, 36 Hole