Sturmey Archer 1921 CS gearbox 4 stud mounting case and outer cover only
Brough, Norton and others
The number is CS51535. From the data that I have gathered, the number puts the gearbox around 1921. See this page: Sturmey Archer gearbox models and dating by numbers
These gearbox casings are usually damaged. The outer covers get damaged as the casing nuts work free. In this case, it all seems good. Bear in mind that the casings are over 100 years old. They have marks, so please study the images carefully.
The Sturmey Archer CS gearbox was usually used with flat tank Nortons. Known to have been used on Brough, Matchless, and many others as it was widely regarded as a reliable gearbox. The good thing about CS gearboxes is that they didn’t change much over the years. Consequently, a 1928 box ought to fit, and line up correctly, on a 1919 bike.
Viewing: Please come and check it over before you buy. It is at PE28, near St Ives in Cambridgeshire.
Shipping: I usually ship to most destinations. If you don’t see a price, please ask. Thanks. International shipping available.
Collection: If you don’t want it shipped, I have plenty of space. If you can’t collect for a while, it’s not a problem. However, I will need to be paid very soon after the sale. Thanks.
Payment: Good old fashioned money on collection is preferred. I can accept payment through PayPal or by bank transfer as well.
Import Taxes: (I need to mention this as I had someone buy something from me and they were based in Europe. They thought I should list the item including all taxes and shipping. Considering import duties vary enormously, this is impractical even if it was possible). Please note that IMPORT DUTIES are not something I can control. If you are buying from outside the UK, there is a chance that you will have to pay import taxes. Import taxes vary from country to country. If there are charges to pay, it is the buyer’s responsibility to research the cost and pay the duties. The price that you see on my advert is for the item and not the item plus whatever taxes might be due.