The Synapse Carbon 3 SmartSense is Cannondale's endurance road bike for long day rides, commuter routes, and multi-hour outings. The integrated SmartSense Gen 2 light and radar system ensures that you are seen and warned in time when vehicles approach from behind. The carbon frame with Proportional Response construction is individually tuned in geometry, carbon layup, and stiffness depending on size. The Delta Steerer of the full carbon fork allows for internal cable routing with a slimmer headset profile, and tire clearance extends up to 48 mm in the front and 42 mm in the rear. Shifting is wireless with the SRAM Rival AXS 2x group, and braking is handled by SRAM Rival hydraulic disc brakes. The DT Swiss E 1800 Spline wheels combine low weight with high durability, while the Cannondale C1 Aero 27 carbon seat post significantly improves vertical riding comfort on long stages. A StashPort for tools and spare materials is located in the down tube. The SmartSense Gen 2 system is fully integrated into the frame and seat post: a front light with up to 800 lumens, a combined Garmin radar taillight that detects following traffic and warns the rider, as well as a shared battery in the down tube with over 24 hours of runtime. No external mounts, no separate charging cables, no visible wiring. For anyone looking for a technically advanced endurance road bike that remains comfortable on long distances and is safe to ride even in poor visibility conditions thanks to the fully integrated light and radar system.