Cannondale Synapse Carbon 2 Smart Sense 2025

Go long, go short, go fast. This is WorldTour performance for real world rides

Double-tap into next-gen smoothness. With its compliant carbon frame, SRAM Force AXS 2x at your fingertips and Reserve’s aerodynamic 42|49 wheels beneath you, this baby makes tempo feel like tempo again. The Gen 2 SmartSense system brings enhanced visibility and awareness to its world-class versatility. Equal parts flash and foundation— Synapse Carbon 2 SmartSense is perfect for Gran Fondos, fast group rides, or going missing all day on purpose. Built for comfortable high-performance road riding, long distance missions, fast group rides.

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.​

Ride Confident
More visibility, more awareness, more integration, with our next-gen SmartSense system. All running from a single concealed battery. Intelligent lights adapt to let other road users know you’re there. While the rear-facing Garmin radar keeps you switched on to approaching traffic. Letting you ride the bike that’s up for anything, whatever time of day or night.

Lights
The headlight is small yet powerful, turning night into day with up to 800 lumens. A daylight function keeps you safe, while its stem-mounted design keeps the cockpit clean.

Radar
The rear radar watches your back, alerting you to approaching vehicles so you can ride with ease.

Battery
Neatly integrated into the downtube, the battery powers lights, radar, and shifting, providing up to 24 hours in flashing mode or over 12 hours in steady mode.

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.

Smarter SmartSense
Gen 2 of our intelligent lights and radar system is smaller, brighter, longer lasting, and better integrated than ever. One battery – now hidden neatly in the downtube - powers the lights, rear-facing radar, and the SRAM AXS shifting.

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.

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. It also houses the SmartSense battery, which provides glovebox-style lighting when StashPort cover is opened.

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.

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.

Wheel Sensor
Cannondale Wheel Sensor delivers hyper-accurate speed, distance and route info, service reminders, and more via the Cannondale App

Features

• Lightweight, smoothly compliant, sleekly aero Synapse carbon frameset with StashPort downtube storage
• SmartSense Gen 2 - Enhanced visibility and awareness from the sleekly integrated system of lights and radar
• Slick wireless electronic shifting from SRAM's high-performance Force AXS group
• Reserve 42|49 Turbulent Aero carbon wheels with DT Swiss 370 Hubs - Sleek aero performance for all-day rides
• Fizik Vento Argo R5 saddle - ergonomic comfort with pressure relieving cutout

Tech Specs

Frameset

• 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 2.0equipped, 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"

Drivetrain

• Rear Derailleur: SRAM Force AXS
• Front Derailleur: SRAM Force AXS, braze-on
• Shifters: SRAM Force AXS
• Chain: SRAM Force
• Crank: SRAM Force, 46/33
• Rear Cogs: SRAM Force, 10-36, 12-speed
• Bottom Bracket: SRAM DUB BSA

Brakes

• Brakes: SRAM Force AXS hydraulic disc, 160/160mm Centerline XR centerlock rotors
• Brake Levers: SRAM Force AXS hydraulic disc

Wheels

• Rims: Reserve 42 | 49 Turbulent Aero, 24h, tubeless ready
• Spokes: Sapim CX-Delta J-bend
• Tire Size: 32
• Wheel Size: 700c
• Hubs: (F) DT Swiss 370, 12x100mm centerlock / (R) DT Swiss 370, 12x142mm centerlock
• Tires: Vittoria Rubino Pro IV, 700x32c

Components

• Handlebar: Vision Trimax Aero Alloy
• Stem: Cannondale C1 Conceal, Alloy, 31.8, -6°
• Grips: Cannondale Bar Tape, 3.5mm
• 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: SmartSense Gen 2.0 system (Bluetooth BLE and ANT+ compatible: SmartSense LightSkin U1E ultra-compact 800 lumen variable output headlight, SmartSense Garmin Varia eRTL 615 rear-facing radar/taillight,
• SmartSense 43.2Wh removable internal battery w/integrated flashlight, SmartSense SRAM AXS charging cable), 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.