The ones on my 128 are original ags from the dealer in 73'. From what I have seen and learned in here, the best looking and aggressive ag tire would be the Carlisle Tru-power tire. I will be putting those on all my cubs as I can. Also I love the look of the tri rib tires on the narrow front rims and the V-61 ribs on the wide front rims.

Here is a link that has the ags:
http://www.millertire.com/