Your right the first bit is talking about filling a tyre so it€™s puncture proof this is no good in your case
and the second bit is instead of cutting up an old car tyre re Jonno€™s idea. Use conveyor belt.


I have still got some 500mm wheels you can have old Saint ones but they would be a bit big!
The Saint wheels are just 12mm HDPE cut with a jigsaw (not even that round to be honest) then bolting a half motorbike tyre with 6mm bolts. The tyre was cut with a jigsaw with a course tooth blade fitted,
If you would like this type of wheel and feel a little apprehensive about cutting the plastic
then bring some plastic along with some drawings to the next show and I will cut it for you when i get home. Hope this helps.


Craig