Drilled out the inner half of the hub to accept the 6 fixing bolts.
Then seated the larger half into the tyre centre, carefully pulling the valve through the valve hole (drilled earlier). Make sure it seats comfortably and is not straining the valve or jamming the inner tube at all.
Use fairy liquid around the tyre inner rim to help it pop onto the rim as you fill with air. Boy does it go with a bang ! ..make sure your fingers arent nea the lip when its filling !
Finished wheel on rim
Bolt the other half of the hub in place tightening opposit diagonals to make sure it tightens evenly. Then soap the tyre inner edges on both sides to encourage it to pop out onto the rims when you inflate. It takes a while for it to pop out so make sure you keep your fingers clear. With two loud bangs it pops onto the rim !
Now deflate completely … I bounced it a little to make sure it sat evenly, then reinflate to standard pressure (2 Bar). Check bolts again.
Soft fit and check brakes dont bind
Just need the yellow paint to mark the witness marks.