seat into the flange and disperse the stress at the bend in the spoke over a wider area. The company produced front hub brakes to match such as the 70mm X-FD model, featuring sealed cartridge bearings. In 2010 Sturmey-Archer launched a new range of duomatic 2-speed hubs, re-using the S2 name from the late 1960s, these hubs – designated S2 (freewheel), S2C (backpedal brake), and S2K (6 bolt disc brake) – share their general engineering principles with the original S2, but do not share any internal components. They offer a direct gear and an overdrive of 38%, a significant improvement for usability over the 'underdrive' gear of the original S2. Three-speed fixed gear hub In 2009 Sun Race Sturmey-Archer re-introduced a three-speed fixed gear hub, the S3X. This gives ratios of 100/75/62.5 (i.e. the top gear is direct drive and the others are geared down from it) and the internals are based on the newest five-speed freewheel hub (in the same way as the original fixed ASC was based on the contemporary FC four-speed hub). Other Sturmey Archer made various models of 70 mm and 90 mm drum brakes with both steel and aluminium bodies. The Sturmey-Archer name was also affixed to the 49 cc two-stroke engine fitted to early Raleigh mopeds, although it was actually a reworking of Vincenti Piatti's "Trojan Mini-Motor", and built by BSA's motorcycle operation. See also Comparison of hub gears References External links Manufacturing companies based in Nottingham Manufacturing companies disestablished in 2000 British companies established in 1902 Manufacturing companies established in 1902 Cycle parts manufacturers Defunct cycle manufacturers of England History of Nottingham Hub gears 2000 disestablishments in England 1902 establishments in England