Cannondale Synapse Carbon 3 L: The Smoothest, Most Versatile Endurance Road Bike for Long Days and Every Road
Looking for the perfect endurance road bike that delivers comfort, speed, and all-day capability without breaking the bank? The Cannondale Synapse Carbon 3 L is exactly that machine. Priced at $3,325, this lightweight carbon endurance bike combines Cannondale’s legendary compliance with modern features like SmartSense lighting and 35mm tire clearance. Whether you’re chasing centuries, commuting through the city, or exploring rough backroads, the Synapse Carbon 3 L lets you roll smooth, roll fast, and roll confident — mile after mile.
Built on a full Synapse Carbon frameset with Proportional Response size-specific design, this bike is engineered to absorb road chatter while keeping you connected to the ride. Weighing just 9.55 kg (21.1 lbs) in a size 56cm, it’s one of the lightest bikes in its class. The SmartSense system adds front and rear lights powered by a single battery for ultimate visibility and safety.
Key Features of the Cannondale Synapse Carbon 3 L
Ultra-Compliant Carbon Frameset
The Synapse Carbon frame uses discreet flex zones in the rear triangle, seat tube, and seatpost to soak up bumps and vibrations. Proportional Response construction ensures every frame size feels perfectly tuned — stiff where you need power, compliant where you need comfort. Hidden fender and rack mounts plus a removable fender bridge make it ready for any adventure.
SmartSense Lighting System
Ride smarter and safer with integrated front and rear lights powered by one convenient battery pack. No more forgetting to charge separate lights — just ride. (Optional rear radar upgrade available.)
Reliable Shimano 105 11-Speed Drivetrain
Smooth, precise shifting with full Shimano 105 hydraulic disc brakes. The 50/34 compact crank and 11-34 cassette give you the gearing to conquer steep climbs and spin easily on flats.
Generous Tire Clearance
Room for up to 35mm tires (30mm Vittoria Zaffiro Pro Reflective tires come stock) means you can run plush rubber for extra comfort or add fenders for year-round riding.
Lightweight & Aerodynamic Touches
Subtle aero shaping on the frame and fork, thru-axles, internal cable routing, and a sleek cockpit keep weight low and wind resistance minimal.
Detailed Specifications
| Category | Specification |
|---|---|
| Frame | Synapse Carbon, SmartSense enabled, Proportional Response, BSA BB, 12x142mm thru-axle, internal routing, fender/rack mounts |
| Fork | Synapse Carbon, 12x100mm thru-axle, internal routing, hidden fender mounts |
| Drivetrain | Shimano 105 11-speed (GS rear derailleur, braze-on front, 50/34 crank, 11-34 cassette) |
| Brakes | Shimano 105 hydraulic disc, 160mm rotors |
| Wheels | RD 2.1 rims (21mm internal), Formula hubs, stainless spokes |
| Tires | Vittoria Zaffiro Pro Reflective 700x30c (35mm clearance) |
| Cockpit | Cannondale 3 alloy compact bar & stem, Fabric Knurl tape, Fizik Aliante Delta saddle |
| Seatpost | Cannondale 3 SmartSense alloy (27.2mm) |
| Weight | 9.55 kg / 21.1 lbs (size 56cm) |
| Price | $3,325 |
| Sizes | 48, 51, 54, 56, 58, 61 cm |
| Colors | Black, other seasonal options |
Why Riders Love the Synapse Carbon 3 L
- All-Day Comfort — Flex zones and endurance geometry keep you fresh on 100+ mile rides.
- Versatile Performance — Fast on pavement, capable on rough roads, ready for fenders or wider tires.
- Safety First — SmartSense lights make you visible day or night with zero hassle.
- Great Value — Full carbon frame, 105 group, hydraulic discs, and lights at this price is hard to beat.
- Future-Proof — Mounts for racks, fenders, and optional radar keep it useful for years.
Real riders call it “the smoothest endurance bike I’ve owned” and praise the balanced handling and vibration-free ride.
![[New Other] 2022 Cannondale Synapse Carbon 3 L Blk 58](https://www.incycle.com/cdn/shop/products/C12302U1058-NO.jpg?v=1673778909&width=1946 "Cannondale Synapse Carbon 3 L")
FAQ: Cannondale Synapse Carbon 3 L
What is the tire clearance on the Synapse Carbon 3 L? Up to 35mm (measured), giving you tons of comfort and grip options.
Does it come with lights? Yes — full SmartSense front + rear lights powered by one battery.
Is the groupset 11-speed or 12-speed? This model (C12302U) uses Shimano 105 11-speed. Higher Synapse Carbon models offer 12-speed options.
How comfortable is it for long rides? Extremely. The combination of geometry, flex zones, and 30mm tires makes it a favorite for centuries and gran fondos.
Can I add fenders and a rack? Absolutely — hidden mounts and removable fender bridge make it easy.
What size should I ride? Use Cannondale’s size guide or visit a dealer for a proper bike fit.
Is it good for gravel? It handles light gravel beautifully with 35mm tires, but it’s optimized as a true road endurance bike.
Conclusion: The Endurance Road Bike That Does It All
The Cannondale Synapse Carbon 3 L proves you don’t need to spend $6,000+ to get a world-class endurance bike. Lightweight carbon construction, intelligent lighting, reliable shifting, and legendary ride quality make it the ideal choice for riders who want one bike that truly does everything.
If you’re ready to ride smoother, farther, and more confidently than ever, the Synapse Carbon 3 L is waiting.
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Ready to take the next step? Find your local Cannondale dealer or order online today! 🚴♂️
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