ISO 10230:1990 Preview
Cycles -- Splined hub and sprocket -- Mating dimensions
This standard was last reviewed and confirmed in 2014. Therefore this version remains current.
Specifies mating dimensions and tolerances for the sprocket and splines of the hub of an internally geared hub or a backpedal brake hub on a cycle. The dimensions and tolerances for the fitting shall be as given in figure 1.