I have been out off it for a while, so please excuse the question if its daft.
But having seen the latest FEC cranks on FlatlandFuel, it made me wonder.
Do spline drive sprockets that use that little adaptor use the same standard sizing?
I know some companies offer a 19mm and 22mm spline drive sprocket adaptors.
But do they all use the same standard in terms of sizing? can a TREE adaptor be used on a profile sprocket for example?
Also anyone know if there are 24mm adaptors?