Anyone out there have a Joyner SR2?
I purchased one in early 2009. I had it out a the Imperial Dunes once around that time and was unable to use it because I had washed it and the spark plug recesses are not well sealed and the water that got in around the plug bases would cause the SR2 to go into limp mode when it warmed up. It was a Saturday and noone was available at Thunder so I did not get to use the SR2. I live in Arizona so we stopped by Thunder on the way home and they quickly knew what the problem was and corrected it. I must say that they have been very motivated and helpful up to this point. Since then I have driven it around my house and in the desert nearby. Very rigid and alot of vibration in this setting but the little use I had in the dunes was much more what this rail is built for. Problems at this point with < 100 miles have been a leak in the gas tank (replaced free of charge) as well as difficulty keeping the siding and tail screws tight (locktite). Thunder also did some thin rubber mounting to try and correct the vibration with mild success. I have left the original shock pressures intact which I understand are set at 165lbs which likely has something to do with the hard surface stiffness and vibration. I also have a drive train intermittent rotational friction sound that I am not convinced will not haunt me in the future. When Joyner tested it they could not find anything. I have the on and off road tires as well as the sand tires. On hard surfaces at higher speeds the rail is very squirelly and 65 MPH was about as fast as I felt safe. I suspect in the soft sand it will be in it's element. I will have it in the dunes again in December and anxiously await further experiences with it and hopefully no problems. If anyone out there has any stories or experiences with Joyner SR2's I'd like to hear from you. Overall I am impressed with the styling and bang for the buck (I got a good deal on this one at $14,900) The welds are cosmetically imperfect but I hope they are structurally sound. I have not seen any reviews on these despite a significant net search. I will update this as I find out more.

I have the 650 and 250 Joyners and have been happy with both. Although I do not have any experience with your model, it should hold up well if it is built like the smaller ones. It's interesting you bring up loosened fasteners on the side panels - My 250 was used and the steel panels were originally missing some hardware. All of the screws have a rubber washer between the screw head and panel. Do they mount the aluminum panels differently?

I'm sure it's the same fasteners. The side panels are fiberglass and the fasteners are wide head bolts with a rubber washer so if you overtighten the rubber spreads and if you undertighten they fall off. I guess locktite is the answer. You can't use a solid washer or it will crack the fiberglass.

Here is another new SR-2 owner:

http://joynerforum.com/viewtopic.php?f=8&t=469&p=1275