Cannondale Synapse Carbon 1 – Shimano Ultegra Di2 & Power Meter
Engineered for all-day endurance, speed, and supreme comfort, the Synapse Carbon 1 combines Cannondale’s ultralight Hi-MOD carbon construction with cutting-edge integration. Featuring a wireless Shimano Ultegra Di2 12-speed drivetrain, an integrated 4iiii dual-sided power meter, Reserve carbon aero wheels, and SmartSense Gen 2.0 readiness, this bike is built to conquer endless miles across any road surface.
Key Specifications
| Platform | Synapse Carbon |
| Model Name | Synapse Carbon 1 |
| Model Code | C12235U |
| Frame | Synapse Hi-MOD Carbon, Proportional Response construction, integrated cable routing, downtube Stashport, 12×142 thru-axle, UDH, BSA 68mm threaded BB, flat mount disc, integrated seat binder, SmartSense Gen 2.0 equipped, fender mounts |
| Fork | Synapse Hi-MOD Carbon, integrated crown race, 12x100mm thru-axle, flat mount disc, internal routing, 1-1/8″ to 1-1/5″ Delta steerer, 55mm offset, fender mounts |
Drivetrain & Brakes
| Drivetrain | Shimano Ultegra Di2 R8150, 2×12-Speed Electronic Wireless |
| Shifters | Shimano Ultegra Di2 R8170 Wireless, 12-Speed |
| Crankset | Shimano Ultegra R8100, 50/34 with 4iiii PRECISION 3+ PRO Power Meter (165mm for 44cm / 170mm for 48-51cm / 172.5mm for 54-56cm / 175mm for 58-61cm) |
| Cassette | Shimano Ultegra R8100, 11-34, 12-Speed |
| Bottom Bracket | Shimano BSA 68 Threaded |
| Brakes | Shimano Ultegra R8170 Hydraulic Disc, 160/160mm CL800 Rotors |
Wheels & Components
| Rims | Reserve 42 | 49 Turbulent Aero Carbon, 24h, Tubeless Ready |
| Hubs & Spokes | DT Swiss 350 (12x100mm Front / 12x142mm Rear Centerlock) with Sapim CX-Ray Aero Straight Pull Spokes |
| Tires | Vittoria Corsa PRO Control, 700x32c, Tubeless Ready |
| Cockpit | Cannondale SystemBar R-One low drag full-carbon integrated bar/stem (90x380mm for 44cm / 90x400mm for 48-51cm / 100x420mm for 54-56cm / 110x420mm for 58-61cm) |
| Saddle & Post | Fizik Vento Argo R5 Saddle (140mm) & Cannondale C1 Aero 27 Carbon Seatpost (SmartSense compatible) |
Included Extras
- Large StashBag downtube storage bag
- Fillmore tubeless valves
- SystemBar R-One Garmin/Wahoo computer mount
