I think there's scope to do it with aluminium, providing it's decent quality material.
True, loads of road hubs with 15mm aluminium axles. I don't even think you actually need to go to the expense of 7075T6 as many do, White Industries Eno hubs have 15mm 6061 aluminium axles for example.
True, loads of road hubs with 15mm aluminium axles. I don't even think you actually need to go to the expense of 7075T6 as many do, White Industries Eno hubs have 15mm 6061 aluminium axles for example.