This crown wheel and pinion set is available from time to time for TR2-6. When used with the appropriate bearings, TR2-4 will fit TR4AIRS-6 and vice versa.
This part appears on the following Triumph Catalogue Plates
Revington TR information: CWP 3.7:1 ratio TR2-4. This crown wheel and pinion set is available from time to time for TR2-6. When used with the appropriate bearings, TR2-4 will fit TR4AIRS-6 and vice versa. This item has a secondhand part available - see below