Cannondale's OPI Steerer is made for Cannondale's Lefty fork and their OPI Stem (both sold separately), to give you a lightweight system-integrated stem/steerer. Its threaded design is made of durable 2024 aluminum.
Cannondale’s patented OPI 3D forging process allows them to take parts that normally consist of multiple pieces of bolted, bonded, or welded aluminum, and instead, use a single block of aluminum to create one-piece forged parts. By forging the pieces from a single block of aluminum, Cannondale achieves exceptionally good metal-grain alignment. This makes the parts stronger and uses less material for overall lighter weight.
Use with Cannondale's OPI Stem (sold separately)
Stem/Steerer system weight: 280 grams