Man, some of you guys are pretty brutal. I've had some experience with power adders. Some built motors have blown on the bottle, some stock motors have performed great on the bottle. In my opinion tuning is everything. A lot of us are here because we like to go fast and i'm sure there are lots of you with you're own personal stories. From my experience if you are smart about how big of a shot you run, and tune the motor, you will be fine. Spark, intake, exhaust, fuel pump, fuel injectors, fuel octane, and timing all play a major part in whether or not you pop your motor. From what i've learned you can get away with "squeezing" (in moderation) on a stock motor if you tune it. Traction, rider/driver experience is all another story.

Just my 2 pennies.

 

Holy Christ Chex, this is STILL going on??????

 

man as long as your not running a huge shot your bike will be fine but keep it off the street...a 30 will not hurt your bike.your bike will last a long time with that kind of shot as long as your bike dont have a lot of miles or wore out your ok those bikes come with forged pistons and good rings already.if your looking for big horspower though build the motor right.