Hmmm… So are you saying when you down shift the RPMs skyrocket? Because it wouldn’t really make sense if it was happening when you upshifted, unless you were really grabbing a lot of throttle when you shift.
Also How high up are we talking? Like it jumps from 7,000 to like 10,000? or like 7,000 to 15,000? You know you are suppose to ease off the gas when you shift right? Just for a split second while your clutch is in.
Concerning your question, I wouldn’t be too worried about pulling wheelies on a 600. I recently learned how to wheelie and I actually practiced in a parking lot for an hour the first time and I couldn’t even get the front end up a little! Eventually I figured out what I was doing wrong, but even now my bike won’t wheelie unless I open it ALL the way up, and lean back in the seat. My bike is a few years old though and I would imagine an r6 or the 08 CBR would be able to wheelie quite a bit easier.
Once again, I would look at how your shifting, because if this is happening when your going from 2nd to 3rd (upshifting), vs from 3rd to 2nd (downshifting) then I would look at your technique because that really shouldn’t be happening unless you want it to happen. In fact when you upshift you should be dropping the RPM’s by a thousand or so instead of increasing them. If it is happening while downshifting then you would be slowing down and therefore the bike isn’t going to pull a wheelie on you since it takes a lot of acceleration to get the front end up. I hope that helps.
~Best Beginner Motorcycles Admin