So, what speed do you 'drift' at when on the Interstate/Highway? (also, what is the limit of the highway and what accessories you have in front would be nice to know).
I'm finding I tend to cruise at 90-100kmh (~55-60mph), and feel comfortable up to about 115kmh (70mph) (comfortable, meaning I don't feel as if the engine is asking me to calm down).
With a few friends when we take longer trips and hit real highways the speed increases to 140-145mph (87-90mph) which I start to dislike on the drifter because it feels as if it's not really happy there. (or is my drifter 'bluffing'?)
I run a big windshield, handguards, lowers, crashbar covers. Outside city limits we can do 90kmh (55mph) and highways are 140kmh (87mph)
I agree with you 60-70mph is fine. I don't have a screen so above 70mph it starts to be hard work but I am sure the bike would be fine.
Around here, country roads and 2 lane highways, I like to cruise 60 mph, give or take. It's more relaxing for me, I enjoy the scenery more and the wind is a lot better. If I'm on the interstate, it's almost always going to be because I'm going quite a distance and would like to get there sooner than later. I'm usually comfortable around 70 mph, but 80 mph does not ruffle the bikes feathers - it seems just fine there.
While she will do better, sixty five to seventy seems to be a sweet spot for m '99er. Obviously I do not have a tac so I am not sure what the revs are at that speed. I can say this. I am tacking a much lower RPM at seventy than my son on his FLHTP. Seems to be a good torque range as well. At slower speeds she grunts a little on big hills. At 65 I find very little drop in the engine even on steep hills. I also ride with a windshield, lowers, and during cold months, crash bar chaps.
70-75 on the Interstate..higher or lower as needed
I'm not one for a lot of speed. 60-65 seems fine to me. As I've said on many occasions, these engines are begging for a 6th gear.
70-75. All day long.