All riders must enter under one of the following classes.
| CLASS A | UNIT CONSTRUCTION PRE 70 4 STROKE BRITISH BIKES. | | CLASS B | PRE 70 BRITISH 2 STROKES. | | CLASS C | PRE UNIT PRE 65 BRITISH BIKES. | | CLASS D | RIGID FRAMES PRE 65 BRITISH BIKES. |
| CLASS E | RIDERS OVER 50 ON A BRITISH BIKE. | | CLASS F | TWINSHOCK BIKES. | | CLASS G | RIDERS OVER 50 ON TWINSHOCK OR MONOSHOCK BIKES. | | CLASS H | PRE 70 BRITISH SIDECARS. |
| CLASS I | MODERN SIDECARS. |
| CLASS J | BRITISH SPECIALS [VOLUNTARY] | | CLASS K | LADS and LASSES (ON ANY BIKE) (SCHOOLBOYS 16 or UNDER
and LADIES OF ANY AGE. |
RIDERS IN CLASSES A. B. C. E. F. G. & J. WILL RIDE THE STANDARD ROUTE.
RIDERS IN CLASSES D. H. I. & K. WILL RIDE THE ALTERNATIVE ROUTE. [WHITE MARKERS]
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