Description
Cannondale Synapse Carbon 4 2026
Endurance All Road Bike
Key Features
- Lightweight Synapse Carbon frameset with aero shaping and StashPort downtube storage
- Shimano 105 Di2 12 speed electronic drivetrain
- DT Swiss 470 rims with Vittoria Rubino Pro IV 32c tyres
- Cannondale C1 Aero 27 carbon seatpost for comfort and efficiency
- Fizik Vento Argo R5 saddle for ergonomic long distance support
- Sub 1150 g frame weight
- Max tyre size: 42 mm rear, 48 mm front
Performance
The Synapse Carbon 4 is the sweet spot of the range, delivering electronic shifting and real world versatility at an accessible price. Its lightweight carbon frameset blends aerodynamic shaping with stable, predictable handling, making it ideal for everything from fast group rides to rough backroads. With wide tyre clearance and durable DT Swiss 470 wheels, the Synapse Carbon 4 is built to handle broken UK lanes, winter training routes, light gravel and long summer miles. Shimano 105 Di2 provides smooth, reliable shifting, giving you performance that feels far above its price point.
Comfort
Cannondales endurance geometry creates a relaxed, balanced position that works for long hours in the saddle. The updated carbon layup increases compliance, smoothing out rough surfaces and reducing fatigue on long rides. Combined with high volume tyres and the ergonomic Fizik Vento Argo saddle, the Synapse Carbon 4 delivers comfort across every season, from winter base miles to all day summer adventures.
Design
The Synapse Carbon 4 blends modern aerodynamics with practical features for real world riding. StashPort downtube storage keeps tools and essentials secure and out of sight, while discreet mounts allow for mudguards and top tube bags. Fully internal cabling and clean tube shaping give the bike a sleek, efficient look. With generous tyre clearance and a lightweight frame, the Synapse Carbon 4 is built to handle every surface and every season with confidence.
Bike specifications are advised by the manufacturer and can be subject to change without prior warning.
Please call our helpful sales team on 01539 821 443 or email us for the latest up-to-date product information.


