BH RC1 105 (2012)

Using the exact same molds as the G5,
but without an integrated seat mast, the RC1 is a race proven machine
ready to take on any criterium, stage race or grueling gran fondo you
can throw its way. With a carbon layup that has been tuned specifically
for greater vertical compliance without compromising bottom bracket
stiffness, the RC1 is one of the most efficient race bikes in the
world. The new all-carbon Pressfit 30 BB shell shaves additional weight
from the frame, while further enhancing the out of the saddle
stiffness. All of this incredible technology is designed to help you
tackle your race aspirations or just your favorite group ride.