If you have read any of the posts about this heavy duty Infinite Speed Hub then you know it's the Holy Grail for over powered bikes. I have 2, NEW, Factory Fresh, Unopened N171's for sale. These include the mounting hardware for disc brakes. You will need to find your own cable control hardware. I'm selling these for the cost of the N380 and will trade one for a complete N380 with all necessary hardware. Send me a message on this forum for more information.