Description
Cannondale Synapse LAB71 SmartSense Road Bike
Two decades ago, the original Synapse reshaped road cycling by offering a fresh alternative to both aggressive race bikes and relaxed comfort models. It combined race-level performance and weight with genuine rider-friendly comfort and handling, effectively launching the Endurance road bike category.
Now in its sixth generation, the latest Synapse LAB71 Road Bike continues to lead, redefining road performance with a sub-1000-gram carbon frame, wind-tunnel-optimised tube shapes, and class-leading stiffness-to-weight.
Designed for speed, distance, and comfort, it features 20% more compliance than its predecessor for a smoother ride, Proportional Response Construction for size-specific tuning, and thoughtful details like the StashPort downtube storage system, hidden top tube bag mounts, and room for high-volume tyres. Trusted by riders like Lachlan Morton for epic challenges, the Synapse delivers unreal performance for real-world roads.
Innovative Frame Design
The Cannondale Synapse features a refined Hi-MOD carbon layup that reduces frame weight by over 100 grams while maintaining the stiffness, ride quality, and durability the Synapse is known for. Each frame size benefits from size-specific construction, ensuring an optimal balance of stiffness and compliance across the range.
A D-shaped seatpost improves aerodynamic efficiency and enhances vertical compliance, helping to reduce rider fatigue on long days in the saddle. Cannondale’s proprietary V-shaped Delta Steerer allows for fully internal cable routing while reducing the frontal area of the head tube for improved aerodynamic performance.
With generous tyre clearance allowing up to 48 mm at the front and 42 mm at the rear, the Synapse is built to handle a wide variety of road surfaces, making it ideal for long-distance and mixed-terrain riding.
SmartSense Gen 2.0
The second generation of Cannondale’s intelligent light and radar system is more advanced than ever. The redesigned headlight is smaller yet significantly brighter, delivering up to 800 lumens (400 lumens in STVZO-compliant regions). A compact radar and taillight unit is neatly integrated beneath the saddle, while the upgraded battery, now fully housed in the downtube offers more than double the capacity of the previous version, providing up to 24 hours of run time.
Storage Solutions
The integrated StashPort storage system sits discreetly beneath the downtube bottle cage, offering practical space for tools, nutrition, and essentials via the included StashBag.
Wheel Sensor
A Cannondale Wheel Sensor provides accurate data on speed, distance, and route tracking, while also offering maintenance reminders and more through the Cannondale App.
Technical Specification
| Frame | LAB71 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 | LAB71 Synapse Hi-MOD Carbon, Integrated Crown Race, 12x100mm Thru-Axle, Flat Mount Disc, Internal Routing, 1-1/8" to 1-1/2" Delta Steerer, 55mm Offset, Fender Mounts |
| Headset | Integrated, 1-1/8" - 1-1/2" |
| Rear Derailleur | SRAM RED XPLR AXS |
| Shifters | SRAM RED AXS |
| Chain | SRAM RED, 13 Speed |
| Crank | SRAM RED AXS Power Meter, 40T |
| Rear Cassette | SRAM XPLR XG-1391, 10-46, 13 Speed |
| Brakes | SRAM RED AXS Hydraulic Disc, 160/160mm Paceline Rotors |
| Brake Levers | SRAM RED AXS Hydraulic Disc |
| Front Hub | DT Swiss 180, 12x100mm Centerlock |
| Rear Hub | DT Swiss 180, 12x142mm Centerlock |
| Rims | Reserve 42 | 49 Turbulent Aero, 24h, Tubeless Ready |
| Spokes | Sapim CX-Ray Aero Straight Pull |
| Tyres | Vittoria Corsa PRO Control, 700x32c, Tubeless Ready |
| Handlebar | Cannondale SystemBar R-One, Low Drag, Full Carbon Integrated Bar/Stem, Internal Routing |
| Handlebar Tape | Fizik Tempo Bondcush Soft, 3mm |
| Stem | Cannondale SystemBar R-One, Low Drag, Full Carbon Integrated Bar/Stem, Internal Routing |
| Saddle | Fizik Vento Argo 00 Carbon, 140mm |
| Seatpost | Cannondale C1 Aero 27 Carbon, SmartSense Compatible, 0mm Offset (44-48cm), 20mm Offset (51-61cm) |
| Connectivity | Cannondale Wheel Sensor |
| Extras | SmartSense Gen 2.0 System (Bluetooth BLE and ANT+ Compatible |
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. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
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.
Size Guide
Cannondale Synapse LAB71 SmartSense Road Bike Sizing
Delivery & Returns
Reviews
Unable to display Reviews due to Privacy Settings.
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".
Q&A
Unable to display Q&A due to Privacy Settings.
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".
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.
Save up to 47% with any one of our 11 Cycle to Work partners, and get the health benefits of a new bike in exchange for tax free salary sacrifice. To find out more about our various partners and how to apply click here.
Choose between Free Bike Delivery - to your home or place of work - or our new Premier Bike Delivery Service £99.99 and have your bike delivered "ready to ride" and set up to your measurements with seatpost and pedals adjusted on arrival by a qualified bike mechanic. Either way, our Customer Care team will be in touch to arrange a delivery date to suit you.
We've partnered with Laka to offer you 30 days free bike Insurance on your new bike purchase over £400. Click here for more info and find out how to claim.