I am 20 years old and I have raced half my life. I quit racing about a year ago because of reasons of growing up so I sold my bikes. After I started getting settled I saw a YZ450 in a dealership, ever since then I had my eye on it. Then I just decide to buy one so I did. Well first rideing it I took it really easy trying to break in the engine and even while taking it easy this bike had so much power the throttle response was instant and in any of the surprisingly few gears it has but for as powerfull as that bike was while breaking it in thats all that bike needs. It would stand up with me (about 200 lbs.) and my 170 lb friend on the back on command and it wasn't noticable if anyone was on the back or not it had so much torque and power. I can't wait till I get to take it out and ride again