The brand new Synapse Carbon 4 reimagines the definition of a road bike. With Shimano 105 mechanical shifting, carbon frame magic, quietly fast, and endlessly composed, this bike offers the ability to go long, go short, or go fast all with one bike. 20% more compliant than its predecessor, this bike offers ultimate comfort when riding on any terrain. The Synapse's carbon frame provides a lighter feel while maintaining strength and ensuring a comfortable ride, making it easier to accelerate, climb hills, and ride longer distances without fatigue. Additionally, the frame offers a stiffness that enhances responsiveness and improves the transfer of power from the pedals to the wheels, leading to a faster and more efficient ride. Its aero-based geometry is designed to reduce drag and enhance speed, while the aggressive, streamlined riding position adds to its performance. Additionally, the Cannondale C1 Conceal internal cable routing further minimises drag and resistance. Featuring the new StashPort storage system which allows you to bring along essentials on your ride and stash them in the downtube to be hidden from sight, thanks to the StashBag. The D-shaped design of the seatpost enhances aerodynamics and vertical compliance, taking the bike's shock absorption to a whole new level. The unique v-shape Delta Steerer keeps the cockpit tidy and cables routed internally. The clearance offers the ability to use up to 48mm tyres in the front, and up to 42mm tyres in the rear. Whether you are riding long distances or winning short races, this bike will guide the way! 20 years ago, the original Synapse did something pretty special – it quietly reimagined the whole road riding experience. Reasoning that most riders were really looking for something other than the high-strung, second-shaving pro race bikes, or the mild and mellow “comfort” road bikes available at the time, Synapse blazed a new path. By melding race-level performance and weight with real rider-friendly comfort and handling, Synapse set the template and the tone for what would become known as the Endurance road bike category. Fast forward two decades and six generations of Synapse, and it’s still out front, setting the pace and helping define what the future of core, for-the-love-of-the-ride, road bikes will look like. Synapse is real performance, for the real world. Unreal performance for real world roads. Unless you’re a WorldTour pro, the Synapse is the perfect road bike for any job. Whether you’re tackling a record-breaking lap of Australia like Lachlan or smashing the not-so-social Sunday ride with your mates, the Synapse exceeds expectations. It blends WorldTour-level aerodynamics and stiffness-to-weight with top-tier tire clearance, compliance, and smart features. FEATURES: Real World Performance: Designed to go fast, built to go long, and made to keep you comfortable, the Synapse redefines road performance. With a sub-1000-gram lightweight carbon 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 deliver the best possible ride. Bring it All, Bring it On: Our all-new StashPort downtube storage system is there when you need it and out of sight when you don’t. Designed to work seamlessly with its StashBag companion, it keeps your ride essentials secure no matter where the road takes you. Plus, with hidden top tube bag mounts, discreet fender mounts, and room for high-volume, capable tires, the new Synapse is built to go long and go hard, no matter what the day brings. Ride Confident: Enjoy improved visibility, enhanced situational awareness, and unmatched convenience with the second generation of our SmartSense system. More discreet, more integrated, and more powerful than ever, this intelligent and connected system of lights, radar, sensors, and our Cannondale app brings easy peace of mind to every ride. All running from a single concealed battery, the rear-facing Garmin radar keeps you switched on to approaching traffic, while intelligent headlights and taillights adapt blink patterns and/or brightness to let other road users know you’re there. It will even power your SRAM AXS shifting. And with just one long-lasting battery to charge, it’easier than ever to get out and ride with confidence. SPECS: Frame Synapse Carbon, Proportional Responseconstruction, integrated cable routing,downtube Stashport, 12x142 thru-axle,UDH, BSA 68mm threaded BB, flat mountdisc, integrated seat binder, SmartSenseGen 2.0 compatible, fender mounts Fork Synapse Carbon, integrated crown race,12x100mm thru-axle, flat mount disc,internal routing, 1-1/8" to 1-1/5" Deltasteerer, 55mm offset, fender mounts Rims/Wheels DT Swiss R470 db, 28h Hubs (F) Shimano RS470, 12x100mm centerlock / (R) Shimano RS470, 12x142mm centerlock Road Reimagined Go long go short go fast. This is WorldTour performance for real world rides. Model Description Wireless brains meet all-road brawn. Synapse Carbon 4 runs Shimano 105 Di2 for a shifting experience that feels straight off the pro tour minus the bank loan. The frame delivers that signature Synapse ride—quietly fast endlessly composed—and plays nice with wide tires fenders and long days. Call it the sweet spot between Sunday speed and weekday practicality. What it's for Comfortable high-performance road riding long distance missions fast group rides Highlights Lightweight smoothly compliant sleekly aero Synapse carbon frameset with StashPort downtube storage Shimano 105 Di2 – Impressively smooth shifting from Shimano's journeyman electronic 2x12-speed drivetrain DT Swiss 470 rims with Vittoria Rubino Pro IV 32c tires - grip durability and speed Cannondale C1 Aero 27 Carbon seatpost - speed meets comfort Fizik Vento Argo R5 saddle - ergonomic comfort with pressure relieving cutout Real World Performance Designed to go fast built to go long and made to keep you comfortable the LAB71 Synapse takes all-around road performance to the next level. With a sub-1000-gram Hi-MOD frame featuring wind tunnel-sculpted aero tubing exceptional stiffness-to-weight and a silky ride it’s a bike that’s ready for anything you demand of it. Proven by Lachlan Morton on 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. Technical Specifications Frame Synapse 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 compatible fender mounts Fork Synapse 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" Front Derailleur Shimano 105 Di2 7150 braze-on Rear Derailleur Shimano 105 Di2 7150 Shifters Shimano 105 Di2 R7170 wireless 12-speed Chain Shimano 105 7100 12-speed Crank Shimano 105 7100 BSA 50/34 Rear Cogs Shimano 105 7100 11-34 12-speed Brakes Shimano 105 7170 hydraulic disc 160/160mm RT70 rotors Brake Levers Shimano 105 Di2 7170 hydraulic disc Hubs F Shimano RS470 12x100mm centerlock / R Shimano RS470 12x142mm centerlock Rims DT Swiss R470 db, 28h Spokes Stainless Steel 14g Tires Vittoria Rubino Pro IV 700x32c Handlebar Vision Trimax Aero Alloy Grips Cannondale Bar Tape 3.5mm Stem Cannondale C1 Conceal Alloy 31.8 -6° Saddle Fizik Vento Argo X5 140mm Seatpost Cannondale C1 Aero 27 Carbon SmartSense compatible 0mm offset 44-48cm 20mm offset 51-61cm Connectivity Cannondale Wheel Sensor Extras Large StashBag downtube storage bag