Cannondale Synapse Carbon 2 - Nearly New - 56cm 2026 - Road Bike
This Synapse Carbon 2 - Nearly New - 56cm road bike is rated as an Excellent Grade which reflects that the bike is in very good condition and can be considered to have been 'pre-pedalled'. Having been lightly used, there are some signs of use on the bike. The only minor visible marks are on the fork leg, down tube and brake lever.
To ensure this bike meets our high standards for quality, it has undergone a thorough inspection by our professional mechanics. As with all our bikes, it comes with a 12-month Tredz warranty, plus any additional manufacturer warranty which may apply.
The Cannondale Synapse Carbon 2 is an endurance road bike that blends race-ready tech with comfort-focused features for riders who go the distance. At its heart is a lightweight Synapse Carbon frame, shaped for compliance and speed using Proportional Response construction, which means every size is tuned to deliver the same confident ride feel. Add in StashPort storage tucked into the downtube and you've got space for ride essentials without cluttering your frame.
Key Features:
- Carbon frame with Proportional Response design and integrated StashPort storage
- Full carbon fork with Delta steerer and internal routing
- Shimano Ultegra Di2 12-speed electronic drivetrain
- Shimano Ultegra R8170 hydraulic disc brakes
- DT Swiss ERC 45 carbon wheels with Rubino Pro IV 32c tyres
- C1 Aero Carbon seatpost and Vision Trimax aero bars
- Available with 0% APR finance
Up front, the carbon fork with a Delta steerer enhances front-end stiffness and precision, while full internal routing keeps the lines clean and aerodynamic. The geometry is relaxed enough for big mile days yet still sharp when you want to push the pace.
The standout feature here is the Shimano Ultegra Di2 12-speed groupset. With wireless shifting, the system offers lightning-fast, finger-light gear changes with incredible accuracy even under load. It’s paired with an 11-34 cassette and compact 50/34 chainset, giving you the range to climb, cruise, and descend with total control.
Braking is equally impressive thanks to Shimano’s Ultegra R8170 hydraulic disc brakes, using 160mm rotors front and rear for consistent, confidence-inspiring stopping power in all weather conditions.
Rolling on DT Swiss ERC 45 carbon wheels, the Synapse Carbon 2 is fast on the flats and steady in crosswinds, with a 45mm rim depth and 24mm inner width for wide-tyre support. It comes fitted with Vittoria Rubino Pro IV 32c tyres, striking a smart balance of grip, comfort and speed.
Comfort and performance are finely balanced with the Cannondale C1 Aero 27 carbon seatpost, designed for aerodynamic gain without sacrificing flex. Meanwhile, the Fizik Vento Argo X5 saddle offers ergonomic support, ideal for longer days in the saddle.
Finished with SmartSense compatibility for lights and radar tech, and practical touches like mudguard mounts, the Synapse Carbon 2 is ready for serious road cyclists looking to level up their ride without compromising on comfort or performance.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Synapse Carbon, Proportional Response construction, integrated cable routing, downtube Stashport, 12x142 thru-axle, UDH, BSA 68mm threaded BB, flat mount disc, integrated seat binder, SmartSense Gen 2.0 compatible, fender mounts |
| Fork | Synapse Carbon, integrated crown race, 12x100mm thru-axle, flat mount disc, internal routing, 1-1/8" to 1-1/5" Delta steerer, 55mm offset, fender mounts |
| Headset | Integrated, 1-1/8" - 1-1/2" |
| Stem | Cannondale C1 Conceal, Alloy, 31.8, -6° |
| Bars | Vision Trimax Aero Alloy |
| Front Brake | Shimano Ultegra R8170, 160/160mm CL800 rotors |
| Rear Brake | Shimano Ultegra R8170, 160/160mm CL800 rotors |
| Brake Lever | Shimano Ultegra Di2 R8170 hydraulic disc |
| Front Mech | Shimano Ultegra Di2 R8150 |
| Rear Mech | Shimano Ultegra Di2 R8150 |
| Shifters | Shimano Ultegra Di2 R8170, wireless, 12-speed |
| Speed | 24 |
| Rims | DT Swiss ERC 45, carbon, 24mm inner width, 45mm depth, 24h, tubeless ready |
| Front Hub | (F) DT Swiss 370, 12x100mm centerlock / (R) DT Swiss 370, 12x142mm centerlock |
| Rear Hub | (F) DT Swiss 370, 12x100mm centerlock / (R) DT Swiss 370, 12x142mm centerlock |
| Spokes | DT Swiss Competition |
| Front Tyre | Vittoria Rubino Pro IV, 700x32c |
| Rear Tyre | Vittoria Rubino Pro IV, 700x32c |
| Seat Post | Cannondale C1 Aero 27 Carbon, SmartSense compatible, 330mm length, 0mm offset (44-48cm), 15mm offset (51-61cm) |
| Saddle | Fizik Vento Argo X5, 140mm |
| Chainset | Shimano Ultegra R8100, 50/34 |
| Bottom Bracket | Shimano BSA 68 |
| Chain | Shimano Ultegra, 12-speed |
| Cassette | Shimano Ultegra R8100, 11-34, 12-speed |
| Pedals | Resin Platform |
Typical Bike Size Chart
|
Height
|
Bike Size
|
Road Bike Size
|
Mountain Bike Size *
|
|
4’8” – 5’1”
143 – 155 cm
|
XXS
|
44 cm
|
13” (33 cm)
|
|
5’1” – 5’4”
155 – 163 cm
|
XS
|
48 cm
|
15” (38 cm)
|
|
5’4” – 5’7”
163 – 170 cm
|
S
|
51 cm
|
16” (41 cm)
|
|
5’7” – 5’10”
170 – 178 cm
|
M
|
54 cm
|
18” (46cm)
|
|
5’10” – 6’0”
178 – 183 cm
|
L
|
56 cm
|
19” (48cm)
|
|
6’0” – 6’3”
183 – 191 cm
|
XL
|
58 cm
|
20” (51 cm)
|
|
6’3” – 6’5”
191 – 196 cm
|
XXL
|
60 cm
|
21” (53 cm)
|
|
6’5” – 6’9”
196 – 205 cm
|
XXXL
|
62 cm
|
22” (56 cm)
|
* Mountain bikes are sized differently to road bikes. Typically, they are sized in inches as the first MTBs were produced in the USA. European brands like Lapierre and Haibike like to use centimetres for all their bikes. The measurements of their mountain bikes doesn’t match their road bikes but are like a simple conversion from the inches measurement. This is why we have included cm measurements in brackets for the Mountain bike column.
Read our bike size guide for more information on sizing.
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Cannondale Synapse Carbon 2 - Nearly New - 56cm 2026 - Road Bike
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