I just want to say that frame on video maybe not a size 56 frame and as I watched for me to buy a new caad12 and I am 1.75 meters with inseam 81 cm, my seat is 71 cm from the center of bottom bracket to up .So that the seat will go out about 14 cm above the seat tube in size 54 which has a height of seat tube 57 cm and this video clearly shows that the seat post is much higher than 14 centimeters. and because there is a difference in size by 2016 / 2017 asked if he says that does not mean 56 cm frame size is 52 charge but as is

can you let a picture of your bike and see how you go out seat over the seat tube because maybe you're wrong there is no way the inseam 81 and from center of bottom bracket to up again 81 cm