scope:

This part of ISO 5751 gives guidelines for the design and specifies the designation, the calculation of dimensions and the load-carrying capacity of metric-series motorcycle tyres. This part of ISO 5751 is applicable to motorcycle tyres with a reduced height/width ratio (100 and lower) that can be fitted on cylindrical bead seat rims or 5° tapered bead seat rims. It is also applicable to other concepts of tyre and rim, in which case, however, the appropriate rim/section ratios and coefficients will have to be established.