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Cannondale Synapse Carbon 1 Shimano Ultegra Di2 12v vs Cannondale Synapse Carbon 2 Smartsense Stvzo SRAM Force AXS 12v

Cannondale Synapse Carbon 1 Shimano Ultegra Di2 12v, side view

Cannondale

Synapse Carbon 1 Shimano Ultegra Di2 12v

Cannondale Synapse Carbon 2 Smartsense Stvzo SRAM Force AXS 12v, side view

Cannondale

Synapse Carbon 2 Smartsense Stvzo SRAM Force AXS 12v

Top of the rangeEnduranceCarbon700c2026
Top of the rangeEnduranceCarbon700c2026

Two builds of the Cannondale Synapse line: 10 differences, mostly in the components.

Cannondale Synapse Carbon 1 Shimano Ultegra Di2 12v, side viewCannondaleCannondale Synapse Carbon 1 Shimano Ultegra Di2 12v
Cannondale Synapse Carbon 2 Smartsense Stvzo SRAM Force AXS 12v, side viewCannondaleCannondale Synapse Carbon 2 Smartsense Stvzo SRAM Force AXS 12v

At a glance

  • Cannondale Synapse Carbon 2 Smartsense Stvzo SRAM Force AXS 12v has the shorter lowest gear: 11 km/h at 90 rpm, against 12 km/h.
Key specs2 differences
Model yearSame for all 2026 2026
FrameSame for all Carbon
As printed

Synapse Hi-MOD Carbon, Proportional Response construction, integrated cable routing, downtube Stashport

 Carbon
As printed

Synapse Carbon, Proportional Response construction, integrated cable routing, downtube Stashport, 12x142 thru-axle

WheelsetSame for all 700c · Reserve 42 | 49 Turbulent Aero, 24h, tubeless ready 700c · Reserve 42 | 49 Turbulent Aero, 24h, tubeless ready
DrivetrainSame for all 2×12 2×12
Groupset Shimano Ultegra Di2 SRAM Force AXS
Brake model Shimano Ultegra R8170 SRAM Force AXS hydraulic disc Higher range

Prices

Each model's retailers, delivered to your country, and their prices over time.

Cannondale Synapse Carbon 1 Shimano Ultegra Di2 12v

Cannondale Synapse Carbon 1 Shimano Ultegra Di2 12v

Cannondale Synapse Carbon 2 Smartsense Stvzo SRAM Force AXS 12v

Cannondale Synapse Carbon 2 Smartsense Stvzo SRAM Force AXS 12v

Character

  • Synapse Carbon 1 Shimano Ultegra Di2 12v · Road bike average gearing, very high equipment.
  • Synapse Carbon 2 Smartsense Stvzo SRAM Force AXS 12v · Road bike average gearing, very high equipment.

Gearing

Speed in the lowest and the highest gear at 90 rpm: lower on the left climbs easier, higher on the right goes faster.

  • Cannondale Synapse Carbon 1 Shimano Ultegra Di2 12v12 km/h - 53 km/h
  • Cannondale Synapse Carbon 2 Smartsense Stvzo SRAM Force AXS 12v11 km/h - 54 km/h
Easiest gear (climbing)Hardest gear (descending)
Cannondale Synapse Carbon 1 Shimano Ultegra Di2 12vCannondale Synapse Carbon 2 Smartsense Stvzo SRAM Force AXS 12v

Components and specs

Every spec line by line; the higher range of a component is marked. The technical groups are folded.

Ride type
Ride typeSame for all Endurance
As printed

bikes/road/endurance; Comfortable high-performance road riding, long distance missions, fast group rides

 Endurance
As printed

bikes/road/endurance; Comfortable high-performance road riding, long distance missions, fast group rides

Frame and fork
ForkSame for all Carbon
As printed

Synapse Hi-MOD Carbon, integrated crown race, 12x100mm thru-axle, flat mount disc

 Carbon
As printed

Synapse Carbon, integrated crown race, 12x100mm thru-axle, flat mount disc, internal routing

Max tyre clearanceSame for all 42 mm 42 mm
AxlesSame for all Thru-axles °Value not published by the brand
As printed

Synapse Hi-MOD Carbon, Proportional Response construction, integrated cable routing, downtube Stashport, 12x142 thru-axle, UDH, BSA 68mm threaded BB, flat mount

 Thru-axles °Value not published by the brand
As printed

Synapse Carbon, Proportional Response construction, integrated cable routing, downtube Stashport, 12x142 thru-axle, UDH, BSA 68mm threaded BB, flat mount disc,

Cable routingSame for all Fully integrated °Value not published by the brand
As printed

integrated cable routing

 Fully integrated °Value not published by the brand
As printed

integrated cable routing

Drivetrain6 differences
Groupset brand Shimano
As printed

Shimano Ultegra Di2

 SRAM
As printed

SRAM Force AXS

Shifting Electronic, wired
As printed

Shifters: Shimano Ultegra Di2 R8170, wireless, 12-speed

 Electronic, wireless
ChainringsSame for all 2 °Value not published by the brand 2 °Value not published by the brand
Gears at the backSame for all 12 12
Chainring teeth Shimano Ultegra R8100 50/34 with 4iiii PRECISION 3+ PRO Power Meter SRAM Force 46/33 Higher range
Cassette Shimano Ultegra R8100 11-34 SRAM Force XG-1270 10-36 Higher range
Rear derailleur Shimano Ultegra Di2 R8150 °Value not published by the brand SRAM Force AXS °Value not published by the brand
Shifters Shimano Ultegra Di2 R8170, wireless, 12-speed °Value not published by the brand SRAM Force AXS °Value not published by the brand
Power meter fitted yes –Not given
Brakes1 difference
Brakes Mechanical disc
As printed

Shimano Ultegra R8170

 Hydraulic disc
As printed

SRAM Force AXS hydraulic disc

Front rotorSame for all 160 mm 160 mm
Rear rotorSame for all 160 mm 160 mm
Wheels and tyres1 difference
Wheel sizeSame for all 700c / 29"
As printed

Vittoria Corsa PRO Control, 700x32c, tubeless ready

 700c / 29"
As printed

Vittoria Rubino Pro IV, 700x32c

RimsSame for all Carbon °Value not published by the brand Carbon °Value not published by the brand
Tubeless readySame for all yes yes °Value not published by the brand
Tyres Vittoria Corsa PRO Control, 700x32c, tubeless ready Vittoria Rubino Pro IV, 700x32c
Tyre width fittedSame for all 32 mm 32 mm

° Value not published by the brand

Where to buy them

Compare the whole Cannondale Synapse range

Frequently asked questions

What groupset do Cannondale Synapse Carbon 1 Shimano Ultegra Di2 12v and Cannondale Synapse Carbon 2 Smartsense Stvzo SRAM Force AXS 12v come with?

Cannondale Synapse Carbon 1 Shimano Ultegra Di2 12v: Shimano Ultegra Di2. Cannondale Synapse Carbon 2 Smartsense Stvzo SRAM Force AXS 12v: SRAM Force AXS.

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