I haven't gone more than 150 miles/clip and don't have the GY BB either. However, I HAVE gotten a flat in one of the GY radials (old supercar size which is n/a)on my way to my "summer" home 75 miles out. I had 2 cans of Fix-a flat, which got me enough pressure to get to a gas station and fill up. The problem was the valve stem where it mounts to the rim. The gooey stuff seemed to fix it so I got to where I was going, hung out for the day, then decided to head back after checking that the tire pressure had held up. Well, 15 miles out, it went flat again. No more Fix-a flat cans. I decided to slowly drive back where I had a set of GY G7 hand-cut racing tires (from Roger Kraus). I had to change all 4 wheels/tires. The flat tire was shot and I can't find a replacement anymore. I had to spring for a full set of Nitto 555s. I run 17s. I now carry a full front wheel spare 15", a lead hammer, a tire repair kit including a small air compressor. 4 cans of Fix a flat. That doesn't leave much room for anything else in the trunk after also storing the top and windows there. Your problem would be where to put luggage. I, myself, am pondering a long trip this spring and trying to figure out if a trunk lid luggage rack with straps and suction cups is something worth looking into. Also, I'm putting together a list of spares and tools that would likely be needed in the event of a mechanical problem. Sorry for a long-winded reply but I think performance may be the least of your concerns; more like being prepared for the unexpected mechanical breakdown or a simple flat? Enjoy and tell us how it went...
