Hey buddy, I'm in the same boat as you, seems not many of the new Gen RC390s getting tuned for track. Impossible to find discussion on spring rates or gearing as well.
For power, I've done the same mods as you, but still using stock header with changed midpipe and slip on, waiting to decide on...
Update, if you are a stickler for potential drag between the grip and bar-end on throttle side, you can trim the harder compound safety wire flange that lives inboard of the main grip inner flange to solve for the Domino being a longer length. This resulted in only a couple millimeters of grip...
Got some domino gp grips for my 2023 RC390. The stock grips are like hard plastic.
The domino grips are longer by about a 1/4” or more. I’m wondering if anyone on here experienced the same and mounted anyway without issue or drag.
Is there is a longer throttle tube avail for our bikes? I cant...
2023 RC390 owner, 225lbs without gear, having trouble finding definitive guidance and solutions for Springs.
Searched here and Reddit, can't find anything actionable.
Racetech website doesnt list the bike, but I see some people run their springs, but they are off menu items it seems.
Teknik...