Deb and I haven't had any issues with the 4 sets of Storms we've used on our ST 1100's this year. We love the way they feel - we just wish they would last a little longer.
On the other hand, I recently changed tires on Brian R's ST 1100 from the Bridgestone BT 021's and put on the Bridgestone Excedra's (bought from Tim). He only had 1,000 miles on his front tire but it was already showing significant wear outside the centre strip. He'd had to have it installed on his way up here as the BT 021 he started out with was unsafe with just over 3,000 miles on it and the only replacement he could find was another BT 021. Needless to say, he isn't impressed with these tires and sent a note to Bridgestone to see if they would do anything about it. The Bridgestone rep's response was:
Subject: Bridgestone
Date: Mon, 25 Aug 2008 10:54:03 -0500
From: GrahamBob@bfusa.com
To: xxxxxxxxxxx@hotmail.com
Brian,
BT021 is a radial-ply, the ST1100 is designed for bias-ply.
Bridgestone do not recommend this application.
In light of this response, I think it is reasonable for us to warn all ST 1100 riders that Bridgestone does not recommend installing BT 021's on this bike (despite their advertizements about how it is designed for a "Sport Touring Application").