I am new to bike racing and have decided to buy a new bike since my old one weighs so much. Besides being confused by the difference between a bike that weighs 16.5 lbs and 13.5 lbs I'm wondering how much my own weight effects how fast I will go. If I weigh 130lbs but could lean down to 120lbs is that like shaving 10lbs off the weight of a bike weighing 25lbs down to 15lbs? Just curious because I'd rather shave the weight off my body than pay a extra 2k for a bike that weighs 5lbs less. Is this a stupid question??