This Standard specifies the rims to be used mainly for bicycles for general use and bicycles for young children as defined in JIS D 9111 (hereafter referred to as "rims").
JIS D 9421:2009 Referenced Document
ISO 5775-1 Bicycle tyres and rims — Part 1: Tyre designations and dimensions*, 2023-07-28 Update
JIS D 9111 Cycles -- Classification, terminology and essential characteristics*, 2016-01-20 Update