Well as I trust you guys (well some of you anyway ) I have to start getting a new build together for this year's team bike. I am torn between sizes and need a little input. I am currently riding a 55cm BMC. Top tube is 56cm and I use a 120mm stem with the seat in about the middle of the rails and one 4mm spacer at the base of the stem.
Where I am torn is at sizing on the new frame:
My choices are a 53cm and a 56cm.
The top tube on the 53 is 54cm and the top tube on the 56 is 56.5 cm. Head/Seat tube angles are about the same.
As many of you know I am a sprinter/crazy ass crit rider but also do road races (though they are not my focus).
As I have come off 53cm Colnagos I have traditionally preferred the more compact feel and have always found my BMC to feel a bit big.
My thoughts are to go with the 53cm and put either a 130mm or 140mm stem on. If I go with a 56 I will probably have to go to a 110mm stem for proper fit - not great as it will put more weight over the rear wheel.
I also prefer to ride on the hoods about 95% of the time - the smaller frame would get me even lower and more aerodynamic and leave the drops for sprints (which is what I normally do anyways).
The only other change I will make is going from a 172.5mm crank to a 170mm crank this time.
I'm hoping you guys can give me a little insight as to what I should do.
For other stats:
Longer torso and long arms