Originally Posted by Sincitycycler
P.S. My Allez does not vibrate or shimmy at all at high speeds thanks to - I believe - the huge 62 cm frame and 190 mm head tube!

Us big guys sure decend fast don't we...
Try 52 - 54 MPH down a 3 mile decent at an average of 8 - 9 percent
(Climbed it at 10 MPH though)...
I have a 63 cm bike that is too small... your quote is quite funny