Unfortunately, in fall 2000, the company went into receivership, and the S-A brand name and intellectual property are for sale. The hubs are compact, efficient and reliable bicycle transmissions.
Much valuable information is already avilable online.
Online Three significant Sturmey-Archer patents are available online. They are at the Canadian Patent Database website . Its shell was connected with the shell of the second hub, which was back-driven through its geartrain, and its sprocket was connected to a friction brake. In the way the apparatus was connected, the chain friction was minimized. The apparatus had a sensitivity to detect a torque change of .08 in-lb.