Ok so I'm sitting on the edge of getting an aluminum track frame but have a slight concern... I was told I should look into going aluminum since I'm a big guy and was getting very noticeable flex down on the bottom bracket with my steel frame... So I took a Motobecane Team Track (AKA 08 Fuji Track Pro) out for a spin today and noticed that when I was standing over the bike and pressing the pedal with my leg I was getting a little flex... Mind you it was a lot less than my steel frame. I just wasn't sure if this was going to end up being a problem seeing as it is aluminum and not sure how it handles that much repeated flexing? Is the only way for me to get rid of all flex to get a carbon frame LOL? I like the frame a lot, I just worry about the flexing. Though I wonder if my worrying is just me feeding into all the aluminum propaganda...