Collection of tank rubber photos
The 1931-33 New Hudsons have tank rubbers with quite complex shapes. The left side is quite bulky but hollow, to mimic the shape of the right side which encompasses the hand gear change gate. With time and UV exposure, the left side sags badly and the right side splits on the concealed mounting plate.
I sent my best distorted pair along with 2 petrol tanks (350 and 500) down to Dial Patterns for moulds to be taken. These were then reworked to correct the distortion and both tanks checked for 'fit'.
Then 25 pairs were slowly poured (3 stage process to eliminate air bubbles). 4 pairs were supposed to be for my bikes, but every single pair has gone to other owners! The material chosen for the new rubbers is much better for wear than some others on sale, but we found that the odd splash of rain resulted in grey/green spots as they absorbed moisture (although they turn black again as they dry out). Soon sorted with a coat of tyre black paint.
Another smaller batch has now been ordered, but this will be the last batch.
More vintage and veteran motorcycle restoration topics to come.