Why buy your bike from Sigma Sports?
Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.
All our bikes are fully built by our Cytech qualified mechanics. To find out more, see the Built, Checked, Tuned and Tested section below to see how we'll deliver your bike.
We offer FREE DELIVERY of your bike to your home or place of work. Once you've placed your order, our Customer Care team will be in contact to offer a convenient delivery date of your choice.
We've partnered with Pedalsure to offer you 30-DAYS FREE bike insurance on new bikes over £400. Visit our Cycle Insurance page to learn more and claim.
Cannondale Synapse Carbon 4 Disc Road Bike 2023
A fresh take on a proven formula, the all-new Cannondale Synapse Carbon 4 Disc Road Bike delivers comfort and speed on longer, endurance style rides. The frame is lightweight and responsive, with its geometry and carbon construction being identical to that of the top-tier Synapse models. A Proportional Response size-specific carbon layup ensures the same ride quality for all riders, keeping rigidity and compliance consistent across the size range for a bespoke feel. A threaded BSA bottom bracket allows for simple home servicing, while tube-in-tube internal routing makes threading cables a breeze.
The all-new frame design steps above and beyond the previous editions, delivering supreme comfort with an aerodynamic twist. Compliance has been improved to damp vibration, reducing fatigue on longer rides, while truncated tube profiles minimise wind resistance to enhance efficiency.
The parts specification blends value with performance, with the 10-speed Shimano Tiagra offering crisp shifting and a wide gear range. Shimano Tiagra hydraulic disc brakes provide ultimate control whilst descending, even in wet weather, and hidden mudguard mounts allow you to ride all year round. The Cannondale wheelset features reliable thru-axle Formula hubs, and the in-house Cannondale cockpit is lightweight and ergonomic.
Highlights
- Subtle aerodynamic frame changes deliver free speed, without any additional weight
- Wide tyre clearance for up to 35mm road tyres
- An all-new frame design sees enhanced compliance to boost ride comfort
- SmartSense compatible design
- Threaded BSA bottom bracket and tube-in-tube internal routing offer simple home maintenance
- Hidden rack/mudguard mounts improve versatility
- Adaptable design with a dynamic and responsive ride character
- Proportional Response Construction frame design ensures the same ride quality across the entire size range
- Reliable Shimano Tiagra groupset delivers crisp, 10-speed shifting
- Hydraulic Shimano disc brakes provide confidence in wet-weather conditions
Discover our Cannondale Synapse road bike page for more in-depth information.
Technical Specification
| Frame | Cannondale Synapse Carbon, SmartSense enabled, Proportional Response size-specific design, BSA threaded BB, flat mount brake, 12x142mm thru-axle, thru-tube internal cable routing with Switch Plate, removable mudguard bridge, hidden rack/mudguard mounts |
| Fork | Cannondale Synapse Full Carbon, integrated crown race, Proportional Response size-specific design, 12x100mm thru-axle, thru-tube internal routing, hidden mudguard mounts |
| Headset | Synapse Sealed Bearing, integrated, 1-1/4”-1-1/8” |
| Bottom Bracket | Shimano BSA |
| Stem | Cannondale 3, 6061 Alloy, 31.8, 7 degree |
| Handlebar | Cannondale 3, 6061 alloy, Compact |
| Bar Tape | Fabric Knurl bar tape |
| Front Brake | Shimano Tiagra, hydraulic disc, 160mm |
| Rear Brake | Shimano Tiagra, hydraulic disc, 160mm |
| Brake Levers | Shimano Tiagra, hydraulic disc |
| Front Derailleur | Shimano Tiagra, braze-on |
| Rear Derailleur | Shimano Tiagra GS, 10-speed |
| Shift Levers | Shimano Tiagra, 10-speed |
| Chain | Shimano HG54, 10-speed |
| Cassette | Shimano Tiagra, 11-34t, 10-speed |
| Crankset | Shimano Tiagra, BSA, 50/34t |
| Front Wheel | Rim - Cannondale RD 3.1, 28h / Hub - Formula CRX-712, 12x100 / Spokes - Stainless Steel, 28 spoke |
| Rear Wheel | Rim - Cannondale RD 3.1 28h / Hub - Formula RXC-400, QR / Spokes - Stainless Steel, 28 spoke |
| Front Tyre | Vittoria Zaffiro Pro Reflective, 700 x 30c, clincher |
| Rear Tyre | Vittoria Zaffiro Pro Reflective, 700 x 30c, clincher |
| Saddle | Fizik Aliante Delta, S-alloy rails |
| Seatpost | Cannondale 3, 6061 Alloy, 25.4 x 350mm (48 to 56cm frame size), 400mm (58 and 61cm frame size) |
| Pedals | Available to be purchased separately |
| Accessories | Turbo trainer compatible rear axle |
Built, Checked, Tuned and Tested
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.