On ours the rear is a 150 black wall and an lop 401.
the front is the 402 and its a Black wall as U can also get it in WW's...
Try this site to learn more on them..
I order mine from Dennis Kirk ( he is a sponsor in here), its about 225 for the pair, was last yr?... then have a local Indy mount them, just take the bike in and he does both for 120.