Wrench size for Sturmey-Archer axle nuts

[all riders]

The axle is 13/32 x 26 tpi. Harris cyclery has the nuts(probably lots of other places too). several current manufactures use an axle that are 10.5mm x 26. 13/32 is 10.3 mm , so a nut from one of these would work and might be what you've encountered. There is also BSC British Standard Cycle, and anything 1/4-- 1 inch has 26 tpi. There is no 13/32 size in BSC

 

[sykerocker]

They are actually Whitworth threads and nuts so you need Whitworth wrenches. That is why most people use adjustable of Cresent wrenches. Whitworth is an old English standard threading. Eric you should know this. Roger

Whitworth wrenches are easy to get and not that expensive. Just look up any outfit that deals parts for vintage Triumph, Norton, BSA, etc. motorcycles.