Cannondale Synapse Carbon 4 Road Bike - 2025

Cannondale’s 2025 Synapse Carbon 4 Road Bike delivers race-ready performance with endurance-focused comfort and smart integration. Built around a lightweight carbon frame, it combines electronic precision, aerodynamic shaping, and storage practicality to support long rides at speed across varied road conditions.

Key Features and Benefits:

• Lightweight carbon frameset with aero shaping and compliance zones: The carbon frame is designed to reduce weight while improving airflow and absorbing road vibration. This improves comfort over rough roads and helps maintain speed with less fatigue.
• Shimano 105 Di2 2x12-speed electronic drivetrain: The Di2 system provides crisp, reliable gear changes without cable stretch or lag. This ensures smoother transitions under load and greater focus on your ride.
• Integrated StashPort storage in the downtube: A built-in storage compartment holds tools and essentials securely within the frame. This reduces the need for external bags and keeps the bike streamlined and efficient.
• DT Swiss R470 wheels with 32c Vittoria Rubino Pro IV tyres: These wheels offer a strong, responsive platform while the wider tyres boost grip and comfort. This setup improves control and durability on long or mixed-surface rides.
• Cannondale C1 Aero 27 carbon seatpost: Designed for both speed and compliance, this post reduces vibration from the rear end. It helps maintain comfort during high-effort efforts or extended rides.
• Fizik Vento Argo R5 saddle with pressure-relief cut out: The short-nose saddle supports a more aggressive position while relieving soft tissue pressure. This improves comfort and reduces numbness during long hours in the saddle.

For most riders, the goal is to go further, faster, and with less strain. The Synapse Carbon 4 is designed for that purpose—balancing race-level performance with all-day comfort. Its integrated features support long rides without compromise, while the electronic drivetrain and aero carbon design make each pedal stroke count. This is a bike built to handle high mileage on real-world roads.

Ride longer, shift smoother, and stay focused on the road ahead with a bike built to perform across distance, speed, and terrain. The Synapse Carbon 4 is ready when you are.