Makes me wonder why you bought the road star if you have no confidence in it. As with any bike ,if have kept up with proper and consistent maintenance then you should be fine. Unforeseen breakdowns can happen and are out of your control. Carry tools with you to minimize the impact.
If you check your bike on some points, such as Belt tension, all your fluids, brakes, battery en charging circuit, tires en tire-tension there is hardly nothing that can surprise you.
Sometimes the starter-relay is mail function. You can either take a spare with you, but if you short-cut the two connections with a solid piece of steel it will start also.
Did last year 7500 KM with my wife and trailer, did the Pyrenees and the Alps without any disturbances. On top of the Pyrenees the Roadie went over the 100.000 KM and I didnít even noticed it.
My ride is super clean, It's kept clean so I will notice anything wrong.an extra relay will be added to my kit. Thank you so much for the great input.
i'v been riding my 650 on the highways at or near the red line for 15 years (55k) as of 2016. you won't even be near your red line at 85mph. the only thing that ever failed on me was the pick up coil, but i still made it home with engine missing ocassionally on one of the cylinders. the way you care for yours it might outlast you..