Thank you
@wspollack! I meant no disrespect to anyone I was just trying to be as specific as possible. Love your trips! Yeah so it seems like it doesnt appear to add any extra wear and tear to the machine at least near as I near as I can tell but then when you search just CVT a lot of folks say not to do that but perhaps that is midel specific for various reasosns. Thanks again!
Hey, no worries, no harm, no foul. I didn't want to waste your time if you only wanted to hear from engineers. It was the best I could do, as I'm certainly not very knowledgeable in terms of what keeps a bike moving down the road. I'm fairly adept at electrical farkles on bikes, but that's pretty much it. And I hope I didn't appear to be snarky or a smartass.
In terms of sliders and weights, CVT-related stuff, I don't know beans about that. There are many discussions here on such mods, but mostly involving the longer-tenured, and now defunct, 600/650 series. I think I vaguely recall a few discussions on such mods with respect to the 400 scoots, but not a whole lot.
I've been on the BurgmanUSA forum for 17+ years now -- I owned two (also now defunct) Burgman 650s for a total of 11 years -- and there are a lot of discussions there, regarding folks messing with slider weights, pulleys, etc., on the various generations of Burgman 400s (the 650s were a whole different system). That's a very active forum, plus there are a lot more Suzuki 400s in the wild than Beemer 400s. It certainly seems like that's an area that a lot of folks like to play with, for either increased take-off speed or higher top end or lower engine revs at certain conditions.
Me, I won't touch anything related to propulsion, especially on a bike under warranty. I had a bad --
and, fortunately for all other owners, apparently unique! -- problem with my '22 C 400 GT. This was an engine failure after 5,000+ miles, and I was without that bike for about five months. That episode ... eventually ... had a happy ending: BMW replaced it with a brand new '23, and while I was waiting I bought a brand new Royal Enfield Meteor 350 (which is a remarkably fun back-road bike, but I ride the scooter about three or four times more often). If you ever get snowed in, down in the bayou, you can read all about this in an agonizingly long thread I started:
https://www.bmw-scooters.com/thread...brand-new-23-c-400-gt-free-part-i-of-ii.2932/
So: no knowledge nor experience with playing with propulsion modifications from me.
Still, I would have no reservations taking the C 400 GT on any long-distance trip. The top speed is fine for the fast lane in 70mph zones; I was cruising for hours in the low 80s without incident, and the bike certainly didn't seem to be strained. And I have one local video where I did a pretty steep downhill run on the '22, and recorded the tach, too; the ECU kept things well in check, while the scoot was definitely maxed out, in terms of top speed, going down the hill.
The only thing a bit lacking is that, IMO, the bike gets blown around a bit more than bigger bikes, with side gusts, trucks, etc., which makes sense, given its weight. Not all that objectionable, but it requires a little more concentration. Well, that, and the absence of a real cruise control (something BMW fits or has options for on almost all its other bikes).
I think the best long distance tourer I ever had (for five years) was a Victory Cross Country Tour. Huge, excellent wind protection courtesy of a large fairing and crashbar lowers, maybe the most storage of any bike, no-fuss no muss belt final drive, and factory cruise. I rode that to the inaugural MotoGP weekend in Austin, TX, for instance. But it was also heavy to move around the garage, my wife has mostly stopped being a passenger, and it was very hot in stopped traffic. Oh, and it was heavy to park, lift off the sidestand, etc., and I was getting on in years (and now even older: 76).
So my recommendation would be not to worry about your plans, i.e., if you have the time and inclination, go for it.
This is in contrast, for example, to my Meteor, which unfortunately is not a bike I'll ever be riding down to NC (much as I'd like a picture of it at The Gap). It tops out at 72 (on level ground, about 60 up a grade), and would be running at its rev limiter in forth or fifth gear all day -- I'm sure the engine wouldn't find that type of work pleasant, and it's not even water-cooled.
Good luck with your trip.