BS AU 50-4.6.3:1991

National foreword
Committees responsible
Specification
1. Scope
2. Normative reference
3. Finish
4. Designation
5. Divided rims
6. Drop centre rims
7. Tapered bead seat rims (MT type)
8. Recommended rim widths
9. Rim circumference measurement
Annex
A. Rim circumference measurement
Tables
1. Divided rims - Contour dimensions
2. Divided rims - Diameters
3. Drop centre rims - Contour dimensions
4. Drop centre rims - Diameters
5. Dimensions of tapered bead seat rims
6. Bead seat contours for MT rims without hump
7. Recommended rim widths
A.1 Mandrel diameters and tape circumferences
Figures
1. Divided rim contour
2. Drop centre rims - Contour dimensions
3. 5 deg tapered bead seat rim contours (MT type)
4. Bead seat contours for MT rims without hump

Lays down rim dimensions and an inch-code-designated series of motorcycle tyres for diameter codes 4 to 12. It sets only those rim contour dimensions necessary for the mounting and fitment of the tyre to the rim. Covers normative reference, finish, designation, divided rims, drop centre rims, tapered bead seat rims, recommended rim widths and rim circumference measurement.

This part of ISO 6054 lays down rim dimensions for an inch-code-designated series of motorcycle tyres for diameter codes 4 to 12. It sets only those rim contour dimensions necessary for the mounting and fitment of the tyre to the rim.

Tyre designations, dimensions and load ratings are given in ISO 6054-1.