AM
The Sturmey Archer Clutch
The Sturmey Archer clutch appeared in 1921 with the introduction of the K series hubs. Earlier Sturmey Archer hub gears did not have a clutch but used a completely different method of engaging the various gears. This article covers all Sturmey Archer clutches from 1921 except N.I.G clutches. Clutches for K Series Hubs K5 […]
Sturmey Archer Sprocket Problem Solved
Sturmey Archer sprockets can be a real problem on early (pre 1951) hubs. Early 12-spline and threaded sprockets are difficult to obtain and early threaded sprockets are difficult to change. I generally like to keep hubs in their original condition as much as possible, but sometimes a compromise is necessary. Threaded Sturmey Archer sprockets use […]
Date Matched Sturmey Archer Spares
Sturmey Archer spares are available from many different places but not many sellers or repairers will be able to match the spare part with the date of your hub. Functionally this isn't really a problem as parts from early hubs are in many cases interchangeable with parts from later hubs. However if you want to […]
When is a Sturmey Archer AM not a Sturmey Archer AM?
A Sturmey Archer AM is not a Sturmey Archer AM when somebody has put an AW internal into an AM shell. There is an auction on eBay for a "sturmey archer 3 speed 1950 AM hub ALLOY vintage bicycle wheel" (Auction number 270857217423) The hub shell is definitely from a Sturmey Archer AM hub and […]