Synapse Carbon 4
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail

Road Reimagined

Go long, go short, go fast. This is WorldTour performance for real world rides.

Model Description

Wireless brains meet all-road brawn. Synapse Carbon 4 runs Shimano 105 Di2 for a shifting experience that feels straight off the pro tour, minus the bank loan. The frame delivers that signature Synapse ride—quietly fast, endlessly composed—and plays nice with wide tires, fenders, and long days. Call it the sweet spot between Sunday speed and weekday practicality.

What it's for

Comfortable high-performance road riding, long distance missions, fast group rides

Highlights

  • Lightweight, smoothly compliant, sleekly aero Synapse carbon frameset with StashPort downtube storage
  • Shimano 105 Di2 – Impressively smooth shifting from Shimano's journeyman electronic 2x12-speed drivetrain
  • DT Swiss 470 rims with Vittoria Rubino Pro IV 32c tires - grip, durability, and speed
  • Cannondale C1 Aero 27 Carbon seatpost - speed meets comfort
  • Fizik Vento Argo R5 saddle - ergonomic comfort with pressure relieving cutout

Cannondale

Synapse Carbon 4

$4,199.00

Size Guide

Jump to: MOUNTAIN | GRAVEL | ROAD | ELECTRIC | FITNESS

Mountain Bikes

Trail

4'6" - 5'2"
137 - 157 
 5'1" - 5'4"
154 - 162 
 5'3" - 5'8"
160 - 172 
  5'7" - 6'0" 
170 - 182 		  5'11" - 6'3" 
180 - 190 
XS S M L XL

Trail Women's

4'6" - 5'2"
137 - 157 
 5'1" - 5'4"
154 - 162 
 5'4" - 5'8"
162 - 172 
  5'7" - 6'0" 
170 - 182 
XS S M L

Trail SE

5'1" - 5'4"
154 - 162 
 5'4" - 5'8"
162 - 172 
  5'7" - 6'0" 
170 - 182 		  6'0" - 6'3" 
182 - 190 
S M L XL

Habit, Habit HT

5'0" - 5'2"
142 - 157 
 5'1" - 5'5"
154 - 165 
 5'4" - 5'9"
162 - 175 
  5'8" - 6'0" 
172 - 182 		  5'11" - 6'5" 
180 - 195 
XS S M L XL

Scalpel, Scalpel SE, Scalpel HT

5'1" - 5'5"
154 - 165 
 5'4" - 5'9"
162 - 175 
  5'8" - 6'0" 
172 - 182 		  5'11" - 6'5" 
180 - 195 
S M L XL

Jekyll

5'2" - 5'5"
157 - 165 
 5'4" - 5'9"
162 - 175 
  5'8" - 6'0" 
172 - 182 		  5'11" - 6'5" 
180 - 195 
S M L XL

Moterra, Moterra LT, Moterra SL

5'1" - 5'5"
154 - 165 
 5'4" - 5'9"
162 - 175 
  5'8" - 6'1" 
172 - 185 		  6'0" - 6'5" 
182 - 195 
S M L XL

Gravel

Topstone, Topstone Carbon

4'10" - 5'5"
147 - 165		 5'3" - 5'9"
160 - 175		 5'7" - 6'1"
170 - 185		  5'10" - 6'4" 
177 - 193		  6'0" - 6'8"
182 - 203
XS 
 
 S M L XL

SuperSix EVO SE, SuperSix EVO CX

5'0" - 5'4"
152 - 162
 5'5" - 5'9"
165 - 175 
 5'7" - 5'11"
170 - 180 
  5'10" - 6'1" 
177 - 185		  6'0" - 6'4" 
182 - 193
46cm 
 
 51cm 54cm 56cm 58cm

Road

Synapse

5'0 - 5'4"
152 - 162 
 5'2" - 5'6"
157 - 167 		 5'5" - 5'9"
165 - 175 		 5'7" - 5'11"
170 - 180 		  5'10" - 6'1" 
175 - 185		  6'0" - 6'4" 
182 - 193 		 6'3" - 6'8" 
190 - 203
44cm 48cm
 		 51cm 54cm 56cm 58cm 61cm

SuperSix Evo

5'1 - 5'5"
154 - 165 
 5'3" - 5'7"
160 - 170 		 5'5" - 5'9"
165 - 175 		 5'7" - 5'11"
170 - 180 		  5'10" - 6'1" 
177 - 185		  6'0" - 6'4" 
182 - 193 		 6'3" - 6'7" 
190 - 200
44cm
48cm
 		 51cm 54cm 56cm 58cm 61cm

SystemSix

5'3 - 5'7"
160 - 170 
 5'5" - 5'9"
165 - 175 		 5'7" - 5'11"
170 - 180 		 5'10" - 6'2"
177 - 187 		  6'10" - 6'4" 
182 - 193		  6'2" - 6'6" 
187 - 198 		 6'5" - 6'9" 
195 - 205
47cm 51cm
 		 54cm 56cm 58cm 60cm 62cm

CAAD Optimo

5'2" - 5'5"
157 - 165 
 5'3" - 5'7"
160 - 170 		 5'5" - 5'9"
165 - 175 		 5'7" - 5'11"
170 - 180 		  5'10" - 6'1" 
177 - 185		  6'0" - 6'4" 
182 - 193 
44cm 48cm
 		 51cm 54cm 56cm 58cm

CAAD13

5'3" - 5'7"
160 - 170 		 5'5" - 5'9"
165 - 175 		 5'4" - 5'9"
170 - 180 		  5'10" - 6'1" 
177 - 185		  6'0" - 6'4" 
182 - 193 		 6'2" - 6'6" 
187 - 198 
48cm
 		 51cm 54cm 56cm 58cm
60cm

Fitness, Urban & Comfort

Adventure, Adventure EQ

4'11" - 5'6"
149 - 167		 5'5" - 5'10"
165 - 177 
  5'9" - 6'2" 
175 - 187 
S M L

Quick, Quick Women's, Quick Remixte

4'10 - 5'3"
147 - 160 
 5'2" - 5'7"
157 - 170 		 5'5" - 5'10"
165 - 177 		 5'9" - 6'2"
175 - 187 		  6'0" - 6'5" 
182 - 195		  6'4" - 6'9" 
193 - 205 
XS S
 		 M L XL XXL

Quick CX

5'2" - 5'7"
157 - 170 
 5'5" - 5'10"
165 - 177 
 5'9" - 6'2"
175 - 187 
  6'0" - 6'5" 
182 - 195		  6'4" - 6'9" 
193 - 205
S 
 
 M L XL XXL

Quick CX Women's

4'10" - 5'3"
147 - 160 
 5'2" - 5'7"
157 - 170 
  5'5" - 5'10" 
165 - 177 
XS S M

Bad Boy

5'2" - 5'7"
157 - 170 
 5'5" - 5'10"
165 - 177 
  5'9" - 6'2" 
175 - 187 		  6'0" - 6'5" 
182 - 195 
S M L XL

Treadwell, Treadwell EQ

4'11" - 5'6"
149 - 167 
 5'4" - 6'0"
162 - 182 
  5'10" - 6'5" 
177 - 195 
S M L

Treadwell Remixte, Treadwell EQ Remixte

4'11" - 5'6"
149 - 167 
  5'4" - 6'0" 
162 - 182 
S L

Electric

Adventure Neo, Adventure Neo EQ

4'11" - 5'7"
149 - 170 
  5'7" - 6'6" 
170 - 198 
S L

Adventure Neo Allroad, Adventure Neo Allroad Low StepThru

5'0" - 5'7"
152 - 170
 5'5" - 5'10"
165 - 177 
  5'9" - 6'5" 
175 - 195 
S M L

Compact Neo

4'5" - 6'1"
134 - 185 
OS

Tesoro Neo SL, Tesoro Neo SL Remixte

5'4" - 5'8"
162 - 172
 5'7" - 6'0"
170 - 182 
  6'0" - 6'3" 
182 - 190 
S M L

Treadwell Neo, Treadwell Neo Remixte

4'11" - 5'6"
149 - 167
 5'4" - 6'0"
162 - 182 
  5'10" - 6'5" 
177 - 195 
S M L
Low stock (1 left)
PRO SETUP Expert Assembly 95% Ready to ride out of the box.
CERTIFIED Master Mechanic Assembly Precision dialed before shipping.
SINCE 1992 Over 30 Years of Trust Decades of cycling expertise.

SKU: C12075U1044

Road Reimagined

Go long, go short, go fast. This is WorldTour performance for real world rides.

Model Description

Wireless brains meet all-road brawn. Synapse Carbon 4 runs Shimano 105 Di2 for a shifting experience that feels straight off the pro tour, minus the bank loan. The frame delivers that signature Synapse ride—quietly fast, endlessly composed—and plays nice with wide tires, fenders, and long days. Call it the sweet spot between Sunday speed and weekday practicality.

What it's for

Comfortable high-performance road riding, long distance missions, fast group rides

Highlights

  • Lightweight, smoothly compliant, sleekly aero Synapse carbon frameset with StashPort downtube storage
  • Shimano 105 Di2 – Impressively smooth shifting from Shimano's journeyman electronic 2x12-speed drivetrain
  • DT Swiss 470 rims with Vittoria Rubino Pro IV 32c tires - grip, durability, and speed
  • Cannondale C1 Aero 27 Carbon seatpost - speed meets comfort
  • Fizik Vento Argo R5 saddle - ergonomic comfort with pressure relieving cutout
SPECIFICATIONS

Frameset

  • Frame: Synapse Carbon, Proportional Response construction, integrated cable routing, downtube Stashport, 12x142 thru-axle, UDH, BSA 68mm threaded BB, SmartSense Gen 2.0 compatible.
  • Fork: Synapse Carbon, 12x100mm thru-axle, internal routing, 1-1/8" to 1-1/5" Delta steerer, 55mm offset.
  • Headset: Integrated, 1-1/8" - 1-1/2".

Drivetrain (Shimano 105 Di2, 12-Speed)

  • Rear Derailleur: Shimano 105 Di2 7150
  • Front Derailleur: Shimano 105 Di2 7150, braze-on
  • Shifters: Shimano 105 Di2 R7170, wireless
  • Crank: Shimano 105 7100, 50/34 (Compact)
  • Rear Cogs: Shimano 105 7100, 11-34
  • Chain: Shimano 105 7100
  • Bottom Bracket: Shimano BSA 68

Wheels & Tires

  • Rims: DT Swiss R470 DB, 28h
  • Hubs: Shimano RS470 Centerlock (12x100mm Front / 12x142mm Rear)
  • Tires: Vittoria Rubino Pro IV, 700x32c
  • Spokes: Stainless Steel, 14g

Brakes

  • Brakes: Shimano 105 7170 hydraulic disc
  • Rotors: RT70, 160mm (Front & Rear)

Components

  • Handlebar: Vision Trimax Aero Alloy
  • Stem: Cannondale C1 Conceal, Alloy, 31.8, -6°
  • Saddle: Fizik Vento Argo X5, 140mm
  • Seatpost: Cannondale C1 Aero 27 Carbon, 330mm
  • Grips: Cannondale Bar Tape, 3.5mm
GEOMETRY

See the Synapse Carbon 4 in Action

Video thumbnail
Video thumbnail