I would rather not have a marked redline than have one you can't reach, like on my 888. The rev limiter kicks in before 9500, even though it still seems willing to rev. The tachometer has the redline marked at 10,000:
since a desmo engine doesn't have 'valve float' isn't it possible for it to also not have an actual red line? aren't rev limiters installed to prevent engine damage due to a floating valve? since our bikes have no spring loaded valves we could theoretically rev them to 20,000 rpms with no consequence. am i right or am i waaaay off base?
Yep. Just because there aren't valve springs to deal with doesn't mean that other moving parts can handle higher RPMs. Piston speed plays a role, for example. Sooner or later something will give if piston speeds are pushed too far. The laws of physics are hard to cheat.
I seem to remember about 4500 feet per min. (piston speed) as getting into the danger zone. And going past peak power by more than just a little is an exercise in futility if you're not on a race track and don't need the over run because of gearing in a particular turn etc. I'm guessing most models are good for about 500 rpm past peak power.
I've run mine to 11,000 just to see and the limiter didn't come in. Probably was about to though. The kit ECUs extend redline somewhat.
Things are getting so busy at those speeds it's hard to watch the tack or speedo though. I'm glad the limiter is there.