5" wheels

Originally Posted by geomapguy

The VEX wheels might not be able to withstand FRC applications....

Has anyone used them? Maybe they can provide insight about their strength.

Standard VEX VRC wheels are not rated for FRC robot weights.

[Chris is me]

The best you can do is Colsons. They are a bit heavier but they have more traction than kit wheels and will work just fine. You don't really have any other practical options that I know of. BB wheels are not suitable for drivetrains and the linked Vex wheel can't take FRC loads.

(Though you can broach those wheels to 1/2 Hex... don't ask how I know.)

[bkahl]

The second link is for scale R/C cars. Also not for FIRST applications.

[Lil' Lavery]

Do keep in mind that the OP never said they were to be used as drive wheels. They may be for a lower load application (intake wheels, ball handling, follower wheel, etc).

Banebots sells 4.875" wheels, though I wouldn't recommend using them as drive wheels.
http://banebots.com/c/WHB-WS-498

McMaster also carries a large variety of wheels, many of which come in a 5" diameter. To get the wheels most similar to the AndyMark KoP wheels, select a rubber tread and a "soft" durometer. Granted, these wheels are not designed specifically for FRC competition or interactions with AndyMark or VexPro parts, so some modification (namely broaching and/or drilling a bolt hole pattern) may be required.
http://www.mcmaster.com/#standard-wheels/=qdt1ol