- Lipped bottom tank rubber used between frame bracket and petrol tank - Four required per petrol tank. It is used used on all Norton single SOHC, pushrod and Sidevalve petrol tanks (other than bolt-thru - Price is per each
These lipped type rubbers have a smaller diameter portion that fits in the petrol tank casting element of Norton frames, with the wider portion sitting above - between the petrol tank and frame casting. Then a corresponding plain 'doughnut' (Item 0129) rubber fits into a steel cup (Item 0123) under the frame casting, with a petrol tank bolt (Item 0124) fitting through all - up into the petrol tank. When the bolts are tightened, the rubbers squeeze and stop the tank from vibrating and helps stop splitting
These rubbers are manufactured specially for RacingNorton and are fuel/oil resistent of a high quality firm rubber, which will not easily break up or soften (which is how most original and pattern ones go eventually).
Note: although not my speciality, I believe these same rubbers were also used on non-Featherbed framed twin Norton's - i.e. Dominator's