well, to be fair, you did say you did the whole "redline" thing every time you hit that stretch of road.

In any case, all it takes is a weak valve spring (remember what I said about the quality of materials??) and high RPM and it'll eventually do some damage.

At least it's under warranty, hopefully they'll honor it and fix it. I wouldn't tell em you redline the bike often if I was you though, lol.

If it does turn out to be a bent valve, make sure they check out the piston and rod, for obvious reasons. it doesn't just bend itself, so they need to check the associated parts.