2021 Cannondale

Synapse Carbon Hi-MOD Disc Ultegra Di2

A carbon frame endurance bike with high-end components and hydraulic disc brakes.

MSRP$7,000
Weight17.0 lbs  
FrameCarbon
SuspensionRigid
ForkCarbon
Wheels700c Carbon
Drivetrain2 × 11 Electronic
GroupsetUltegra Di2
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 Hi-MOD Disc Ultegra Di2

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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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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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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Cycling Weekly
Cannondale Synapse Hi-Mod Disc Red eTap review

May 2019 · James Bracey

Cannondale’s endurance machine packs in more than just a comfortable ride

Highs
  • Handling

  • Specification

Lows
  • Limited height adjustability of stem

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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

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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 Hi-MOD 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 Hi-MOD 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 BB30

Headset

Synapse Si, 25mm Carbon top cap

Stem

All-New HollowGram SAVE, alloy, -6°

Handlebar

HollowGram SystemBar SAVE, Carbon, 8 deg. pitch adjust

Saddle

Fabric Scoop Shallow Race, titanium rails

Seatpost

Cannondale 2, UD Carbon, 25.4 x 350mm

TypeRigid

Grips

Cannondale Grip Bar Tape w/Gel, 3.5mm

Groupset
Rear Derailleur

Shimano Ultegra Di2 RX

Front Derailleur

Shimano Ultegra Di2, braze-on

Crank

HollowGram, BB30a w/ OPI SpideRing, 50/34

Shifters

Shimano Ultegra Di2 hydro disc, 2x11

Cassette

Shimano Ultegra, 11-34, 11-speed

Chain

Shimano HG701, 11-speed

Brakes

Shimano Ultegra Di2 hydro disc, 160/140mm RT800 rotors

TypeHydraulic Disc

Brake Levers

Shimano Ultegra Di2 hydro disc

Wheels
Rims

HollowGram 45 SL KNØT, Carbon, 20h front, 24h rear, 45mm deep, 21mm ID, tubeless ready

Spokes

DT Swiss Aerolite

Front Hub

HollowGram KNØT, sealed bearing 12x100 centerlock

Rear Hub

HollowGram KNØT, 12x142 centerlock w/ DT Swiss internals

Tires

Vittoria Corsa, 700 x 28c

Rider Notes
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Last updated October 31
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