The SLX M7000 Centre Lock QR Rear Hub from Shimano is a durable rear hub designed for use with centre-lock disc brakes or rim brakes. Centre-lock disc brakes allow for a secure & hassle free set-up. The freehub features a pawl design that means you have engagement every 10 degrees, resulting in near instant power transfer. The double contact sealing & internal grease sleeve makes sure that water & grit is kept out & the grease is kept in, meaning your hub will run smoother for longer. As well as this, the Borozon treated cone bearing races provide precision & low friction rolling. The axle is 135mm wide with a QR skewer included, suitable for 11-Speed geared mountainbikes. Available in Black only.