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In 1966 Sturmey-Archer launched a new two-speed hub with a backpedal shifting action similar to the Fichtel and Sachs 'Torpedo Zwei Gang Duomatic'. The S2 – Sturmey-Archer's first 2-speed hub since the demise of the T series in 1941 and the last two speed they would make in the UK – featured a direct drive and a 28.6% gear reduction.
2 136% City Sturmey Archer: XRF-8 (W), XRK-8 (W), XRD-8 (W) 2014 8 325% 1st Gear 1770-2170 g City/Folding ... 1966 5 225-256% 1200-1760 g City Sturmey Archer
1921/1925 – 346cc J.A.P 4-stroke engine with 3-speed Sturmey Archer gearbox, change lever mounted with gearbox. 1921/1925 – Model 250 247cc J.A.P. 4-stroke engine: Model 350 346cc J.A.P. all chain drive 4-stroke engine: Code named "Zarteetee" the bike raced in the 1923 Isle of Man TT finishing 21st out of 41 riders taking part.
v. t. e. Sturmey-Archer S3X. A hub gear, [1] internal-gear hub, [2] internally geared hub[3] or just gear hub[4] is a gear ratio changing system commonly used on bicycles that is implemented with planetary or epicyclic gears. The gears and lubricants are sealed within the shell of the hub gear, in contrast with derailleur gears where the gears ...
1972 to 1983 The Mk 2 ("Mark 2") Chopper was an improved version sold from 1972. It had the rarely-purchased option of five-speed derailleur gears (1973/74 "Pinky"), and the gear lever shifter reverted from a knob to a T-bar-style shifter only with a different style to the lever. (The earlier 'Tall frame' model had already sported the T-bar ...
Henry Sturmey. John James Henry Sturmey (1857–1930), known as Henry Sturmey, is best remembered as the inventor with James Archer of the Sturmey-Archer three-speed hub for bicycles, but he was a technical editor and journalist heavily involved as a pioneer of the cycling and automotive industries. Born at Norton-sub-Hamdon, Somerset, on 28 ...
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Dunelt Motorcycles was a British motorcycle and bicycle [1][2] manufacturer. Dunelt is a combination of the surnames DUNford and ELliotT. [3] Their first motorcycle was an innovative supercharged 499 cc two-stroke single. The company specialised in good quality sidecars from 1926 and a Dunelt motorcycle was first to cross the desert from Cairo ...