2021 Cannondale

Synapse Carbon Disc 105

A carbon frame endurance bike with upper mid-range components and hydraulic disc brakes.

MSRP$2,600
Weight20.1 lbs  
FrameCarbon
SuspensionRigid
ForkCarbon
Wheels700c Aluminum
Drivetrain2 × 11
Groupset105, FSA
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 105

39 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.

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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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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BikeRadar
Cannondale Synapse Carbon Disc Dura-Ace review

Feb 2020 · Warren Rossiter

Aiding the ride feel up front is Cannondale’s SAVE hollowgram carbon bar and stem, which eschews a standard round clamp in favour of a crescent-shaped cradle that the bar sits into.

Highs
  • Likeable lively handling, light chassis, smooth ride

Lows
  • Middleweight wheelset at odds with superbike chassis

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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.

Read Review

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 StandardPF30, Press Fit

Fork

BallisTec Carbon, SAVE, integrated crown race, 12x100mm thru-axle, internal routing, size-specific design - 44-48: 1 1/8" steerer, 60mm rake 51-54: 1-1/8" - 1-1/4" tapered steerer, 55mm rake 56-61: 1-1/8" - 1-3/8" tapered steerer, 45mm rake

Bottom Bracket

Cannondale Alloy PressFit30

Headset

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

Stem

Cannondale 3, 6061 alloy, 7-degree

Handlebar

Cannondale 3, 6061 alloy, Compact

Saddle

Fabric Scoop Shallow Sport, steel rails

Seatpost

Cannondale 3, 6061 Alloy, 25.4 x 350mm (46-56), 400mm (58-61)

TypeRigid

Grips

Cannondale Grip Bar Tape w/Gel, 3.5mm

Groupset
Rear Derailleur

Shimano 105 GS

Front Derailleur

Shimano 105, braze-on

Crank

Cannondale 1, BB30a, FSA rings, 50/34

Shifters

Shimano 105 hydro disc, 2x11

Cassette

Shimano 105, 11-34, 11-speed

Chain

Shimano HG601, 11-speed

Brakes

Shimano 105 hydro disc, 160/160mm RT30 rotors

TypeHydraulic Disc

Brake Levers

Shimano 105 hydro disc

Wheels
Rims

RD 2.0, 28h

Spokes

Stainless steel, 14g

Front Hub

Formula CL-712, 12x100mm centerlock

Rear Hub

Formula RXC-400, 12x142 centerlock

Tires

Vittoria Zaffiro Pro Bright Black, 700 x 30c

Rider Notes
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Last updated June 23
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