Provides explosive power transfer and unparalleled pedaling efficiency. The BB30 shell is dramatically oversized and blends into optimized asymmetrical chain stays. It also accepts a newly designed Si BB30 Hollowgram SL crankset.

SUPERSIX FORK

The full-carbon SuperSix fork is carbon fiber down to dropouts. It tapers from 1.8" to 1.5" at the crown. This reduces weight and boosts front end stiffness for superior handling. System Integration!

TAPERED HEAD TUBE

The head tube of the SuperSix is tapered to accept the shape of the tapered steerer which measures 1 1/8" at the headset and 1.5" at the fork crown. The result is superior handling and steering precision.

CARBON SEAT STAYS

The carbon seat stays of the SuperSix are shaped and optimized to provide integrated vibration absorption without sacrificing efficiency. After six hours at race pace - every little bit counts.

BB30 WITH Si HOLLOWGRAM CRANKSET