Cannondale: Synapse Carbon 1 RLE

Cannondale: Synapse Carbon 1 RLE

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Cannondale: Synapse Carbon 1 RLE

Road Reimagined at Bike Attack Playa Vista

Roll smooth, roll fast, roll confident. Wherever the road takes you, roll with Synapse – our most comfortable, all-around, up-for-anything, pure road machine.

Where it thrives

The open road, up & down hills, rough pavement

What it's built for

Comfort, handling, going long


  • Lightweight Synapse Carbon frameset / Full SmartSense integration with radar and lights

  • Shimano Dura Ace Di2, 12-speed electronic group with hydraulic disc brakes

  • HollowGram 45 SL KNØT carbon wheelset / HollowGram SAVE SystemBar

Road Reimagined


So Smooth
With Synapse, comfort is built in. Discreet flex zones in the rear triangle, seat tube and seatpost absorb road chatter and bumps without adding weight or isolating you from the ride experience.


So Fast

Lightweight carbon construction. Subtle aerodynamic shaping of the frame and fork. Size-specific design for perfectly tuned stiffness. It all adds up to a machine that loves to fly.


So Capable

With a comfortably balanced riding position, confidence-inspiring handling, room for 35mm wide tires for cushion and grip, and plenty of gear/bottle mounts, Synapse is ready to rock on any road, anywhere.




So Brilliant

Ride assured, with increased visibility and enhance awareness out on the road. Our SmartSense system of intelligent lights (and optional rear-facing radar) makes it easy to ride smart.




Comfortable, sleek and adjustable. This vibration-absorbing handlebar offers the integrated looks of a one-piece bar/stem, with the modular adjustability of a two-piece design.

HollowGram 45 SL KNØT Wheels

Light, fast and versatile carbon wheels. Extra-wide 45mm deep profile reduces drag, increases tire volume for comfort and grip, and maintains high aerodynamic efficiency even with big tires.

Wide Ranging Capabilities

Clearance for 35mm tires lets you venture beyond the perfectly paved with comfort and grip - or ride through the wet season with full fenders.

Specially Smooth

Comfort and control you feel, not see. Everything you need for a bump-absorbing smooth ride is engineered into the frame shape and carbon layup - giving you a light, sleek ride that's unlike anything else.

Tuned for the Rider

Our Proportional Response size-specific construction creates optimal frame stiffness and compliance for each frame size, so that every rider experiences Synapse's glorious ride feel.

Mount Up

Mounts and eyelets galore means you can equip Synapse for whatever the day has in store, including full fender compatibility. Even rain can't keep Synapse down.

SmartSense Equipped

Our intelligent system of running lights and rear-facing radar is fully integrated and powered by a single power source for total convenience. More visibility. Better awareness. Less pre-ride fiddling.





  • Frame
    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 fender bridge, hidden rack/fender mounts
  • Fork
    Synapse Carbon, integrated crown race, Proportional Response size-specific design, 12x100mm thru-axle, thru-tube internal routing, hidden fender mounts
  • Headset
    Synapse Carbon Sealed Bearing, integrated, 1-1/4"-1-1/8"


  • Rear Derailleur
    Shimano Dura-Ace Di2 R9250
  • Front Derailleur
    Shimano Dura-Ace Di2 R9250, braze-on
  • Shifters
    Shimano Dura-Ace Di2 R9270 hydraulic disc, wireless, 2x12-speed
  • Chain
    Shimano Dura-Ace R9100, 12-speed
  • Crank
    Shimano Dura-Ace R9200, 50/34
  • Rear Cogs
    Shimano Dura-Ace R9100, 11-34T, 12-speed
  • Bottom Bracket
    Shimano Dura-Ace R9100 BSA


  • Brakes
    Shimano Dura-Ace Di2 R9270 hydraulic disc, 160/160mm RT900 rotors
  • Brake Levers
    Shimano Dura-Ace Di2 R9270 hydraulic disc


  • Rims
    HollowGram 45 SL KNØT, Carbon, 20h front, 24h rear, 45mm deep, 21mm IW, tubeless ready
  • Spokes
    DT Swiss Aerolite, straight-pull
  • Tires
    Vittoria Corsa tan wall, 700 x 30c
  • Tire Size
  • Wheel Size
  • Hubs
    (F) HollowGram KNØT, sealed bearing 12x100mm centerlock / (R) HollowGram KNØT, 12x142mm centerlock w/ DT Swiss 240 internals
  • Front Tire
    Vittoria Corsa tan wall, 700 x 30c
  • Rear Tire
    Vittoria Corsa tan wall, 700 x 30c


  • Handlebar
    HollowGram SAVE SystemBar, Carbon, 8 deg. pitch adjust
  • Stem
    HollowGram SAVE, Alloy, -6°
  • Grips
    Fabric Knurl Bar Tape
  • Saddle
    Fizik Tempo Argo R3, 150mm width, K:ium rails
  • Seatpost
    HollowGram SAVE Carbon SmartSense, 27.2 x 350mm (48-56), 400mm (58-61)


  • Wheel Sensor
    Cannondale Wheel Sensor


  • Extra 1
    SmartSense with Lights and Radar, Trainer-compatible thru-axle

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