Dropped into my local tyre place in Scoresby and asked the guy there if he had any used inner tubes. I was lucky as they are not used so much these days, he came back from the bin with a truck inner tube from a job the day before…and it’s a perfect fit !!!

With much haste cut out a section…will it fit ???

A perfect fit…a good day all around.

Note: I swapped to MDF wheels, just using one of the Melamine wheels for the test fitting.