I don't think I'll buy another pair of the Bridgestones
When I bought the '01 1100RT in May 2 years ago it had a pair of Avon Storm 2 Ultras on it that were a bit more than half worn out. I got another 4200 miles out of them before I replaced them.
Since then I've Worn out a set of PR 3's (10,675 miles)
Bridgestone BT023 (10,683 miles)
Pirelli Angel ST EMS (9708 miles)
I'm now working on a set of Continental Road Attack 2's with about 6600 miles.
The rear Pirelli was worn down to the cord when I replaced it, the first time I've ever worn a tire that low, but with no grove that crosses the center of the tire it wasn't obvious how worn the tire was. The Pirelli's were the cheapest cost per mile.
The Bridgestones were a decent tire, but didn't feel as secure to me as either the PR 3's, Pirelli's or Continental's. They were also the highest retail cost because I bought them at the independent shop that does the maintenance on the RT and it was due for new tires when I got around to the 60K service.
My next set is another set of Avon's because I got a $50 rebate coupon on a set at the International Motorcycle Show in Long Beach. They still are offering a $40 rebate per set, I know BikeBandit.com has a link to the rebate form. With the rebate the Avon's will be the lowest retail cost, but I'll need another 14,000 miles or so to see if the cost per mile turns out to be the lowest.
Americanmototire.com has been the least expensive place to buy tires the last several times I've looked, although I've seen nearly as good a price at BikeBandit, Revzilla, Competition Accessories and Motorcycle Superstore on occasion.
I'd skip the Bridgestones and shop around for a set of PR 3's, Continental's or Pirelli's.