The 2002 Bridgestone GL1800 OE tires rode fine their entire life but for tar snakes. Just as with BT023 on FJR the front was gone in 6,000 miles, rear 10,000+.
The first generation Dunlop Elite for GL1800 were an improvement on the Bridgestone.
It is a mistake to judge all Bridgestone tires by the tire selected for "free" replacement by a car dealer. In 1993 I had a wonderful set of Bridgestone tires on my Infiniti. RE90 is the best I can remember. The Bridgestones on my Subaru are OK, unexceptional. Cost more at Tire Rack than the Michelin on Tesla. Used exact OE replacement on the Tesla, won't on the Subaru. Doubt I'll replace the F-150's Goodyears with same when time comes.
The BT023 is better than a Shinko 016. But I'm liking the T31 GT front better than the PR4GT or anything else I've tried.
While I like my FJR I haven't liked any Yamaha dirtbikes since the IT175.
2018 F-150 XLT SuperCab 4x4 2.7L
2016 Beta 430 RS
2016 Subaru Outback
2013 Tesla Model S 85
2009 Husaberg FE450
1983 Porsche 928S