Cannondale Synopse Si - 2020, 56 cm

Cannondale Synapse Si Ultegra Di2 — Size 56

Carbon Endurance Road Bike · Shimano Ultegra Di2

The Cannondale Synapse Si Ultegra Di2 is a performance endurance road bike built for long, fast days in the saddle while maintaining comfort and efficiency. Its lightweight carbon frame delivers smooth road compliance without sacrificing responsiveness, making it ideal for training, fondos, or endurance racing.

This build is equipped with a Shimano Ultegra Di2 2x11 electronic drivetrain, paired with 50/34 chainrings and an 11–34 cassette, offering precise shifting and a versatile gearing range for climbs and high-speed cruising. Shimano Ultegra hydraulic disc brakes provide reliable and controlled stopping power in all conditions.

Rolling on Fulcrum wheels fitted with Pirelli P7 32C tires, the bike balances speed with comfort and grip, and remains tubeless ready for further optimization. Finishing components include a Cannondale carbon seatpost, FSA 420mm bars, and a 100mm Giant stem. At approximately 16.9 lb, the bike remains impressively light for its category.

Fit range: approximately 5’8”–6’0”

Why we love it

The Synapse platform has long been known for blending comfort and performance, and this Di2-equipped version hits that sweet spot perfectly. It’s a bike that encourages long miles with minimal fatigue while still feeling lively when you push the pace. For riders looking for premium electronic shifting and a lightweight carbon chassis at a strong value point, this one stands out as a dependable and enjoyable ride.