2021 Cannondale

Synapse Carbon Disc Ultegra Flatbar

A 700c carbon frame fitness bike with high-end components and hydraulic disc brakes.
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Manufacturer Price

$2,550
Weight20.3 lbs  
FrameCarbon
SuspensionRigid
ForkCarbon
Wheels700c Aluminum
Drivetrain2 × 11
GroupsetUltegra, 105
BrakesHydraulic Disc
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

39 mph

Synapse Carbon Disc Ultegra Flatbar

35 mph

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Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

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Reviews
Road Bike Action
CANNONDALE SYNAPSE CARBON RLE BIKE TEST - Road Bike Action

Dec 2022 · RBA Staff

Radar comes standard

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Cycling Tips
2022 Cannondale Synapse Carbon 2 RLE review: One smooth ride - CyclingTips

Aug 2022 · Dave Rome

An overhauled endurance road platform meets modern all-road capability. It’s wonderful but there's a but.

Highs
  • Smooth ride quality, versatile tyre clearance, stable yet-not-sluggish handling, Shimano Ultegra Di2, easy to service component fitments, classy subdued styling.

Lows
  • SmartSense and the fact it’s a forced feature you’re paying extra for, wheels could be fancier for the money, mis-matched thru-axles.

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Gran Fondo Magazine
First ride review: 2022 Cannondale Synapse – Safer on the road thanks to Cannondale SmartSense?

Jan 2022 · By

Cannondale have overhauled the Synapse, adding an integrated radar and lights. Can it offer improved safety on the road? Read on to find out.

Highs
  • Added safety for cyclists

  • The lights switch from daytime to night mode automatically

  • Mounting points for mudguards etc.

  • Predictable handling

Lows
  • Lack of cable integration up front

  • Somewhat lacking in long-distance comfort

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BikeRadar
Cannondale Synapse Disc Ultegra long-term review

Jan 2021 · Felix Smith

This is an initial score and could change as I spend more time on the bike

Highs
  • Cannondale's SAVE 'micro-suspension' is incredibly effective at taming rough tarmac and the low gearing and 32mm tyre clearance encourages more adventurous cycling

Lows
  • Messy cables up front detract from the otherwise clean overall design and the wheels and tyres are lacking modern endurance spec

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Cycling Weekly
Cannondale Synapse Carbon 105

Nov 2020 · Vern Pitt

The Cannondale Synapse Carbon 105 is a popular endurance bike that still has a spring in its step

Highs
  • Sprightly handling

  • Great at reducing road buzz

  • Solid spec

  • Good value

Lows
  • Heavy wheels

  • Frame probably due an update

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Cyclist
Cannondale Synapse Carbon Ultegra review

Mar 2020 · Joe Robinson

The Cannondale Synapse is a bike for all occasions in this modern world of mixed-terrain riding

Highs
  • Comfortable

  • Suitable for mixed terrain

  • 'Affordable'

Lows
  • Doesn’t come with tubeless tyres

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road.cc
Cannondale Synapse Hi-Mod Disc Dura-Ace Di2

Jun 2018 · David Arthur @davearthur

Fast, smooth and fun, the new Synapse is an exceedingly good endurance bike

Read Review

Velo
Pro Bike Gallery: Sebastian Langeveld’s Cannondale Synapse

Apr 2018 · VeloNews.com

EF Education First-Drapac rider Sebastian Langeveld will ride disc brakes at Roubaix after making the podium in 2017.

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Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

BallisTec Carbon, Di2 ready, SAVE, BB30a, flat mount, 12mm thru axle, internal cable routing, removable fender bridge, Di2 ready, SAVE, BB30a, Flat mount, 12mm thru axle, Internal cable routing, Removable fender bridge

BB StandardBB30, Press Fit

Fork

BallisTec Carbon, SAVE, integrated crown race, 12x100mm thru-axle, internal routing, size-specific design - (S/M): 1-1/8" - 1-1/4" tapered steerer, 55mm rake, (L/XL): 1-1/8" - 1-3/8" tapered steerer, 45mm rake

Bottom Bracket

Cannondale BB30

Headset

Synapse, 1-1/4" lower bearing, 25mm top cap

Stem

Cannondale 3, 6061 alloy, 31.8, 7°

Handlebar

Cannondale 3 Flat, 6061 alloy, 10° back, 3° rise

Saddle

Fabric Scoop Radius Elite, cro-mo rails

Seatpost

6061 alloy, 25.4 x 350mm (44-56), 400mm (58-61)

TypeRigid

Grips

Cannondale Ergo Fitness Dual Density, Lock-on

Groupset
Rear Derailleur

Shimano Ultegra GS

Front Derailleur

Shimano 105, braze-on

Crank

FSA Omega alloy, 50/34

Shifters

Shimano RS700 FB, 2x11

Cassette

Shimano 105, 11-34, 11-speed

Chain

KMC X11, 11-speed

Brakes

Shimano UR300 hydro disc, 160/160mm RT10 rotors

TypeHydraulic Disc

Brake Levers

Shimano MT201 hydro disc

Wheels
Rims

RD 2.0, 28h

Spokes

Stainless steel, 14g

Front Hub

Formula RX-512 12x100

Rear Hub

Formula RX-142 12x142

Tires

Vittoria Zaffiro Pro Bright Black, 700 x 30c, reflective strip

Rider Notes
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Last updated October 31
Not listed for 1,267 days