riding my little 650cc Suzuki on the highway while weighing 250 pounds and trying to get it to go to 70. it finally got up to 72. really dangerous because where I live is windy as fuck near the Sacramento Delta and the head winds pushing in my face would slow me down below 65 and people laying into their horns. People never drive 65 around here.. most around 75 or 80mph.
You used to get a fucking ticket by CHP in the day going over 70 but now they dont bother unless you're well over 75.
but enough about that. I pushed it's limits and she kept on riding. I miss that bike. Some pieces of shit tried to murk me in San Francisco by pushing me into the back of a car.
Pushing things to the limit...you'll learn as you mature...isn't a good idea, it's always best to keep things about 70% or lower. Riding on the limit is sooner or later going to result in catastrophic failure.
ETA:
If you want more power/results, rather than pushing it to the limit, raise the limit to 30% above what you need.
An engine for example...if you want more HP, get a bigger motor, one capable of your HP requirements, and then some.