mac pointed out that there's more to a bandsaw - that won't try
and maim or kill you - than two wheels and a bandsaw blade. I
believe the phrase Penny Wise, Pound Foolish came from your side
of The Pond. Unless you have plenty of spare time and are sure
you can get Express Service at the nearest emergency room, I
suggest you pass on trying the Jerry Rig a bike wheel.

Perhaps a ply or MDF wheel?

charlie b