IS THIS DIRTBIKE GOOD FOR ME? URGENT! 10 QUICK POINTS!! PLEASE ANSWER ASAP!!!!!!!?

Hi, i found this cheap bike and i'm wondering if it's good. http://toronto.kijiji.ca/c-cars-vehicles-motorcycles-dirt-bikes-motocross-dirt-bike-for-sale-W0QQAdIdZ147313293 i'm 15 years old, and i live in Ontario,canada. i'm 5'3", and 100 lbs. waht is the best offer you think i can get on... show more Hi, i found this cheap bike and i'm wondering if it's good.
http://toronto.kijiji.ca/c-cars-vehicles-motorcycles-dirt-bikes-motocross-dirt-bike-for-sale-W0QQAdIdZ147313293
i'm 15 years old, and i live in Ontario,canada. i'm 5'3", and 100 lbs. waht is the best offer you think i can get on this bike? I'm just starting out, so this will be my first bike. will it be too small for me or the right size? i want to do racing and fmx so would this bike be suitible for that stuff?

THANKS SOOOOOOOOO MUCH!!
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