As title says, tried searching a tad only on saw one old example from Burkhart. I figured surely others offer them. Figured anyone running fast enough to require on is lurking in this forum. Looking at running a 1/2 mile roll racing event in a few months and was looking into options.....or lack there of. Probably would be more interested in aluminum. Thanks.

 

Try madman.

 

We have them.

 

racecraft also makes them