I traded my Cannondale Quick5 LG frame for a CAAD8 2300 56cm frame. Added a stem riser that i had on the quick.I test rode it and i really liked the way the power to the pedals was easier to achieve...Not sure about the seat yet...it's pretty hard on the TAINT...I have one coming that has a good cutout on it...The tires are a lot harder....One thing is for sure, it's a lot faster...I am 6'1" 245 lbs so i have a ways to go until i can be where i need to be, around 200lbs...