Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Cannondale
2021 Cannondale Synapse Carbon Ultegra Di2
Value Guide market data · 2021 Cannondale Synapse Carbon Ultegra Di2
12-month trend
14%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2021 Cannondale Synapse Carbon Ultegra Di2
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Synapse model years
2025$15,344 - $17,819▲ 110% vs. 2021
2024$5,162 - $5,994▼ 30% vs. 2021
2023$1,934 - $2,246▼ 74% vs. 2021
2022$8,417 - $9,774▲ 15% vs. 2021
2021$7,324 - $8,505Currently viewing
2020$9,300 - $10,800▲ 27% vs. 2021
2019$9,765 - $11,340▲ 33% vs. 2021
2018$9,300 - $10,800▲ 27% vs. 2021
2017$7,440 - $8,640▲ 2% vs. 2021
2016$8,370 - $9,720▲ 14% vs. 2021
2015$8,565 - $9,947▲ 17% vs. 2021
2014$7,552 - $8,770▲ 3% vs. 2021
2013$7,161 - $8,316▼ 2% vs. 2021
2012$6,045 - $7,020▼ 17% vs. 2021
2011$5,952 - $6,912▼ 19% vs. 2021
2010$7,905 - $9,180▲ 8% vs. 2021
2009$6,417 - $7,452▼ 12% vs. 2021
2008$4,464 - $5,184▼ 39% vs. 2021
2007$3,906 - $4,536▼ 47% vs. 2021
2006$3,999 - $4,644▼ 45% vs. 20212021 Synapse Carbon Ultegra Di2 lineup
Overview
About this bike
2021 Cannondale Synapse Carbon Ultegra Di2 value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork
- BallisTec Full Carbon, integrated crown race, SAVE, size-specific design, 12 x 100mm thru-axle, internal routing
- Frame
- BallisTec Carbon, Di2 ready, SAVE, BB30a, flat mount, 12 x 142mm thru axle, internal cable routing, removable fender bridge
Drivetrain
- Groupset
- 2021 Cannondale Synapse Carbon Ultegra Di2
- Crankset
- Cannondale 1, BB30a, 50/34
- Bottom Bracket
- Cannondale BB30
- Chain
- Shimano HG601, 11-speed
- Front Derailleur
- Shimano Ultegra Di2, braze-on
- Rear Derailleur
- Shimano Ultegra Di2 GS
- Cassette/Rear Cogs
- Shimano Ultegra HG800, 11-34T, 11-speed
- Shifters
- Shimano Ultegra Di2, 11-speed
Brakes
- Brake Levers
- Shimano Ultegra Di2 hydraulic disc
- Brakes
- Shimano Ultegra Di2 hydraulic disc, 160/160mm RT800 rotors
Cockpit
- Saddle
- Fabric Scoop Shallow Sport, steel rails
- Headset
- Synapse Carbon, integrated, 1-1/8" - 1-1/8" (48 cm), 1-1/8" - 1-1/4" (51-54 cm), 1-1/8" - 1-3/8" (56-61 cm)
- Stem
- Cannondale 2, 6061 Alloy, 31.8, 7°
- Handlebars
- Cannondale 2, 7050 alloy, Compact
- Seat Post
- Cannondale 2, UD Carbon, 25.4 x 300mm (48-51), 350mm (54-56), 400mm (58-61)
- Tape/Grips
- Cannondale Bar Tape, 3.5mm
Wheels & Tires
- Hubs
- Front: Fulcrum Racing 600, 12 x 100mm thru-axle<br>Rear: Fulcrum Racing 600, 12 x 142mm thru-axle
- Tires
- Vittoria Rubino Pro Bright Black, 700 x 30c, reflective
- Spokes
- Fulcrum
Pedals
- Pedals
- Sold separately
Accessories
- Accessories & Extras
- Removable fender bridge
- Rims/Wheels
- Fulcrum Racing 600 DB
- Color
- Mercury
Weight & Sizing
- Size
- 48cm / 51cm / 54cm / 56cm / 58cm / 61cm
Frame sizing
XS4'10"-5'2"
S5'2"-5'6"
M5'6"-5'10"
L5'10"-6'2"
XL6'2"-6'6"
M highlighted as most common resale size. Sourced from catalog metadata.
Geometry
- Stack
- Varies by size
- Reach
- Varies by size
- Wheelbase
- Varies by size
Industry standard. Sourced from catalog metadata.
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Wheel condition
Inspect rims, hubs, spokes, and bearing play; ask about the tire age and any prior wheel rebuilds.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Carbon inspection
Tap test the frame, fork, seatpost, and bars for cracks; verify no impact damage near dropouts.
Inspection
Brake hoses & cables
Check hydraulic line bleed, cable housing wear, and confirm rotors are within spec.