Cannondale Synapse Carbon 1 2025
Road Reimagined
Go long, go short, go fast. This is WorldTour performance for real world rides. The sharp end of endurance. Synapse Carbon 1 comes carved from our superlight Hi-MOD carbon and tuned for the real world. The SystemBar cockpit delivers sleek control. Shimano Ultegra Di2 delivers flawless electronic precision, while Reserve’s 42|49 Turbulent Aero wheels slice through wind and roll with poise over chunky tarmac. This is your stealth missile for long-haul glory, wrapped in composure and ready for whatever the road throws next.
Real World Performance
Designed to go fast, built to go long, and made to keep you comfortable, the Synapse redefines road performance. With a lightweight frame featuring wind-tunnel-sculpted tubing and PB-blasting stiffness-to-weight, it’s a bike that’s ready for anything you demand of it. Just ask Lachlan Morton why he trusted it for his record-smashing lap of Australia. Unreal speed, engineered for real-world roads.
Compliant Comfort
With advancements in our carbon layup, our engineers have made the new Synapse 20% more compliant than its already butter-smooth predecessor, ensuring you feel 100% more comfortable even on the roughest roads.
Like A Glove
A great fit and feel makes for a great ride. And with our Proportional Response Construction, every rider gets that as standard. From the carbon layup through to the geometry, everything on Synapse has been tuned and tested by frame size. So that your bike works in harmony with you to give the best possible ride for you and your height.
Bring it all, bring it on
Our all-new StashPort storage system in the downtube is there when you need it and hidden when you don’t. Paired with its StashBag buddy, you can bring along your ride essentials and know that they’ll be secure, whatever you get up to out there. Meanwhile, best-in-class tire clearance lets you take the idea of riding for longer to a whole new level.
Big Ride Rubber
Best-in-class clearance for tires with a maximum measured width of up to 48mm in the front and 42mm in the rear - with at least 4mm of extra clearance on each side - makes Synapse a true, ride-longer, ride-whatever kind of road bike.
Wheel Sensor
Cannondale Wheel Sensor delivers hyper-accurate speed, distance and route info, service reminders, and more via the Cannondale App
SystemBar
Sleek and light, the SystemBar R-One carbon cockpit is the perfect ride command center, giving you an aero advantage, clean integration, and all-day comfort.
Fly Delta
The unique-to-Cannondale v-shape Delta Steerer keeps your cockpit tidy and cables routed internally. While the reduced headtube frontal area brings aero gains to the party. As well as sleeker good looks.
D-Lightful
The D-shaped design of Synapse’s seatpost enhances aerodynamics and boosts vertical compliance. Reducing muscle fatigue so that you stay fresher on those longer days.
StashPort + StashBag
StashPort is our take on a downtube storage system, accessed beneath the water bottle cage. While every Synapse includes StashBag, a specially designed bag for tools and other ride essentials.
Features
- Superlight Hi-MOD carbon construction - incredibly light and responsive
- SystemBar R-One - Our low drag, full carbon integrated bar/stem co-developed with MomoDesign
- Reserve 42|49 Turbulent Aero carbon wheels with DT Swiss 350 Hubs - Sleek aero performance for all-day rides
- Ultegra Di2 – Effortlessly accurate shifting from Shimano's penultimate electronic 12-speed drivetrain
- Vittoria Corsa PRO Control tires - racing performance for extreme conditions
Tech Specs
Frameset
- Frame: Synapse Hi-MOD Carbon, Proportional Response construction, integrated cable routing, downtube Stashport, 12x142 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
- Headset: Integrated, 1-1/8" - 1-1/2"
Drivetrain
- Rear Derailleur: Shimano Ultegra Di2 R8150
- Front Derailleur: Shimano Ultegra Di2 R8150
- Shifters: Shimano Ultegra Di2 R8170, wireless, 12-speed
- Chain: Shimano Ultegra, 12-speed
- Crank: Shimano Ultegra R8100, 50/34, 4iiii PRECISION 3+ PRO Power Meter
- Rear Cogs: Shimano Ultegra R8100, 11-34, 12-speed
- Bottom Bracket: Shimano BSA 68
Brakes
- Brakes: Shimano Ultegra R8170, 160/160mm CL800 rotors
- Brake Levers: Shimano Ultegra Di2 R8170 hydraulic disc
Wheels
- Rims: Reserve 42 | 49 Turbulent Aero, 24h, tubeless ready
- Spokes: Sapim CX-Ray Aero straight pull
- Tire Size: 32
- Wheel Size: 700c
- Hubs: (F) DT Swiss 350, 12x100mm centerlock / (R) DT Swiss 350, 12x142mm centerlock
- Tires: Vittoria Corsa PRO Control, 700x32c, tubeless ready
Components
- Handlebar: Cannondale SystemBar R-One - low drag, full carbon integrated bar/stem, internal routing
- Stem: Cannondale SystemBar R-One - low drag, full carbon integrated bar/stem, internal routing
- Grips: Fizik Tempo Bondcush Soft, 3mm
- Saddle: Fizik Vento Argo R5, 140mm
- Seatpost: Cannondale C1 Aero 27 Carbon, SmartSense compatible, 330mm length, 0mm offset (44-48cm), 15mm offset (51-61cm)
Connectivity
- Wheel Sensor: Cannondale Wheel Sensor
Extra
- Extra 1: Large StashBag downtube storage bag, Fillmore tubeless valves
Producer's note: Please note that, based on component availability and other factors, specifications are subject to change without notice.