THAT CHAIR IS SO 60s!
Sweeeeeet.....
How much does it weight? Can the bearings in the wheels handle cargo, passenger, and the weight of the cart?
I suggest you swap out your front wheels for some hefty casters. I used some of
these casters from NorthernTool on a pair of autonomous navigation test platforms and have run them in dusty environments for some time now, never had a problem. They have a capacity of 300lbs a piece.
If your rear wheels can't support the weight of your vehicle, you might try some of
NorthernTool's 10" tires with an already mounted 60 tooth #35 chain sprocket.
Very awesome cart! I hope you don't have to turn it in a very small space though... its a limo in length!
-q