Look no further than the Most Tiger Aero Di2 Compatible Stem if you're swapping out stems to dial in the perfect fit on your Pinarello. It pairs perfectly with Pinarello's aero head tube spacers for a clean aesthetic with minimal wind-resistance. This particular version uses forged aluminum for high levels of strength, as well as a 10-gram weight savings over both 3K and 1K carbon versions. For 2018, it's updated with special routing for the Shimano Di2 R9150 drivetrain, so you can seamlessly adapt this stem to your electronic shifting needs.