0-DWH3MM Dave's Hubs - 3mm Hub Set of Two <p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">These are for mounting the Lite-Flite foam wheels on an insect class fighting bot. They can be used with Lite-Flites from 1 3/4in. diameter to 3in. diameter after the plastic Lite-Flite hub has been removed and discarded.</font></p>
Robot MarketPlace - Dave's Hubs - 3mm Hub Set of Two
These are for mounting the Lite-Flite foam wheels on an insect class fighting bot. They can be used with Lite-Flites from 1 3/4in. diameter to 3in. diameter after the plastic Lite-Flite hub has been removed and discarded.
$20.99 
Installation Guide 
very nice
1 3/4 Inch Diameter Lite Flite Wheel 2pk
2 1/2 Inch Diameter Lite Flite Wheel 2pk