2023 Cannondale

Synapse Carbon 2 RLE

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

Manufacturer Price

$5,550
FrameCarbon
SuspensionRigid
ForkCarbon
Wheels700c Aluminum
Drivetrain2 × 12 Electronic
GroupsetUltegra Di2
BrakesHydraulic Disc
View on cannondale.comLearn about Cannondale
Top Comparison
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 2 RLE

39 mph

Similar Bikes

Highest gear

(descending)

Spec Level

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

Sizing
48cm

5'2" – 5'6"

51cm

5'5" – 5'10"

54cm

5'7" – 5'11"

56cm

5'9" – 6'1"

58cm

6'0" – 6'4"

61cm

6'3" – 6'8"

Rider Fit Notes

None yet.

Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.

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

Dec 2022 · RBA Staff

Radar comes standard

Read Review

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.

Read Review

Cyclist
Cannondale Synapse Carbon 1 RLE review

May 2022 · Sam Challis

At its core, the new Synapse is a truly excellent road bike

Highs
  • Comfort

  • Handling

  • Design simplicity

  • Quality finishing kit

Lows
  • Controversial SmartSense system

  • Weight

Read Review

road.cc
Cannondale Synapse 2 RL

Feb 2022 · Stu Kerton

Beautiful to ride with a great blend of speed and comfort, but the electronic aids aren't that special – and aren't for me

Highs
  • Excellent geometry layout

  • Comfortable

  • Reflective seatstays are a clever touch

  • Trainer adaptors as standard

Lows
  • Cable routing not as clean as some

  • Low end wheelset comparative to the frame

Read Review

BikeRadar
Cannondale Synapse Carbon 2 RL review

Jan 2022 · Warren Rossiter

The new Synapse is a refined endurance bike that’s easy to live with and brings safety-enhancing tech as standard

Highs
  • Supple smoothness wrapped around swift, exciting handling

  • Clever tech brings day and night safety

Lows
  • Not everyone will want all of the equipment

  • Alloy components and middleweight wheels feel like a downgrade

Read Review

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

Read Review

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

Read Review

Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
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

BB StandardBSA, 68mm, Threaded

Tire Clearance35c

ColorsGrey; Rally Red

Fork

Synapse Carbon, integrated crown race, Proportional Response size-specific design, 12x100mm thru-axle, thru-tube internal routing, hidden fender mounts

Bottom Bracket

Shimano R8100 BSA

Headset

Synapse Sealed Bearing, integrated, 1-1/4"-1-1/8"

Stem

Cannondale 2, 6061 Alloy, 31.8, 7°

Handlebar

FSA Gossamer Compact

Saddle

Fizik Tempo Argo R5, 150mm width, S-alloy rails

Seatpost

Cannondale 2 SmartSense, UD Carbon, 27.2x350mm (48-56), 400mm (58-61)

TypeRigid

Pedals

Not included

Grips

Fabric Knurl Bar Tape

Groupset
Rear Derailleur

Shimano Ultegra Di2 R8150

Front Derailleur

Shimano Ultegra Di2 R8150, braze-on

Crank

Shimano Ultegra, BSA, 50/34

Shifters

Shimano Ultegra Di2 R8170 hydraulic disc, wireless, 2x12

Cassette

Shimano Ultegra R8100, 11-34, 12-speed

Chain

Shimano Ultegra R8100, 12-speed

Brakes

Shimano Ultegra Di2 R8170 hydraulic disc, 160/160mm RT800 rotors

TypeHydraulic Disc

Brake Levers

Shimano Ultegra Di2 R8170 hydraulic disc

Wheels
Rims

Fulcrum Rapid Red 500

Spokes

Fulcrum, Stainless steel

Front Hub

(F) Fulcrum Rapid Red 500, 12x100mm centerlock / (R) Fulcrum Rapid Red 500, 12x142mm centerlock

Rear Hub

(F) Fulcrum Rapid Red 500, 12x100mm centerlock / (R) Fulcrum Rapid Red 500, 12x142mm centerlock

Tires

Vittoria Rubino Pro Bright Black, 700x30c, reflective

Rider Notes
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Last updated May 18