This part of ISO 6054 lays down the designation, dimensions, and load ratings for an inch-code-designated series of tyres for motorcycles, fitted on rims with a nominal diameter corresponding to the codes 4, 5, 6, 7, 8, 9, 10 and 12. ISO 6054-2 deals with the requirements for rims. NOTE 1 The parallel International Standards in the metric series are ISO 5751-1[4] ISO 5751-2[5] and ISO 5751-3[6].