Possible Repair on Rollerz Type of Cat Paws

My 4 wheel set of Rollerz Cat Paws have two wheels that do not hold air. Their website says that the inflatiable wheels are not repairable when they loose air, and the only possiblity is to buy new wheels at about $60 each.

We have two wheels that need repair. The valves are like a basketball valves. The wheels no longer hold air. X = the ones needing repair.

X
()-()--------()-()
................X

This wheel set worked great on the 18SX, and I want to repair them. Does anyone have experience with these? Thanks

Where are they leaking from?

If it has a hole you might try Slime to seal it. It works great in MTB tires.

http://www.slimesealant.com/product.php?product=blue

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I believe the leak is through the basketball type of valve. I don't think I can inject Slime through a needle like you use to fill a basketball or football. I took the set to a auto tire guy I know well, and he just through up his hands and didn't want to mess with it.

If it's coming through the center hole (where you stick the inflation needle)I had the same problem with an old set of Cat-Trax.

Take an old inflation needle, fill it with glue (to plug it up) and stick it in the hole. Put a piece of duct tape over it to hold it in and keep it from snagging on anything.

The $0.50 solution.