I also own a Foreman, and I replaced the OEM tires with Carlisle ACT HD radials. These have been fantastic tires, and they are not as heavy as some of the similarly sized 6 ply tires out there. When the BR needs new ones, I plan on putting on ACT HD tires in a 25-11-12...a little heavier than stock, but certainly a better tire, and a tiny bit wider. I'm hoping for a better ride than the stock tires as well.
Carlisle Tire & Wheel Company