I've been thinking about cc's & wondered what you guys have to say about it. I have a custom built 140cc Piranha,it is definately an out-n-out race bike but serves well as a trail bike or jumper too. I just recently got an 07 CRF50,I have considered getting an 88cc bore kit for it but now I'm on the fence.After getting used to the 140 for the past 3 months & before that is was a 125 for 6 months,I have been neglecting it in favor of the 50. My question is this,when will these pits no longer be considered pits with the way cc's keep going up & what's your cc limit before you quit building it up? I mean......they may still have a 10"/12" or 10"/10" wheel combo but cc wise you're practically getting a big bike with small wheels & shorter frame. Race applications are obvious but what about you backyard burners/trail riders/jumpers? Have the fun little hell raisers start down the extinction path towards the balls to the walls screamer?