Velopedia Bicycle Archive
2015 Cannondale Synapse Carbon Ultegra Disc
Original specifications: Shimano Ultegra drivetrain · 700c wheels.
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At a glance
- Model year
- 2015
- Category
- Road
- Original MSRP
- $3,790.00
- Sizes
- 48, 51, 54, 56, 58, 61cm
- Colors
- BBQ, Black/Yellow
- In this record
- 23 specifications · original MSRP
- Archive ID
- 1084859
Original buildCarbon Fiber · Shimano Ultegra · 700c
Frameset
| Frame Construction | Synapse, BallisTec Carbon, Di2 ready, SAVE PLUS, BB30A |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | Synapse SAVE PLUS, BallisTec Carbon, 1-1/8" to 1-1/4" tapered steerer |
| Fork Material | Carbon Fiber |
Drivetrain
| Component Group | Shimano Ultegra |
|---|---|
| Shifters | Shimano RS685 |
| Front Derailleur | Shimano Ultegra 6800, braze-on |
| Rear Derailleur | Shimano Ultegra 6800 GS |
| Crankset | Cannondale HollowGram Si, BB30A, FSA rings, 50/34 |
| Bottom Bracket | FSA BB30 |
| Rear Cogs | Shimano 105 CS 5800, 11-32, 11 Speed |
| Chain | Shimano HG600, 11-speed |
Brakes
| Brakes | Shimano RS685 hydraulic disc, 140/140 |
|---|
Cockpit & Contact Points
| Headset | Synapse Si, 1-1/4" lower bearing, 25mm top cap |
|---|---|
| Handlebar | Cannondale C2 Compact, butted 2014 alloy |
| Stem | Cannondale C2, 6061 Alloy, 31.8, 6 deg. |
| Saddle | Fabric Spoon Shallow, Ti Rail |
| Seatpost | Cannondale C2, UD Carbon, 25.4x300mm (48-51) 350mm (54-61) |
Wheels & Tires
| Hubs | Mavic Aksium One Disc, Centerlock |
|---|---|
| Rims | Mavic Aksium One Disc WTS |
| Spokes | Mavic Aksium Disc WTS |
| Front Tire | Mavic Aksion WTS, 700x28c, folding |
| Wheel Size | 700c |
Gearing
Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.
Parts & serviceability
Find replacement parts

Continental Gatorskin Clincher Tire Black, Folding Black, 700x28
700x28
Replacement option · verify fit

Challenge Strada Pro Tubeless Tire Black, 700x28
700x28
Replacement option · verify fit
More parts (6)

ENVE Twin Bolt Seatpost Black, 25mm Offset, 25.4x300mm
25.4x300mm
Replacement option · verify fit
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases.
Bike-specific inspection checklist 19 checks based on 5 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2015 Cannondale Synapse Carbon Ultegra Disc · Road Double · Published sizes: 48, 51, 54, 56, 58, 61cm
Frame and fork
Inspect the frame and fork →Archived: Frame: Synapse, BallisTec Carbon, Di2 ready, SAVE PLUS, BB30A · Fork: Synapse SAVE PLUS, BallisTec Carbon, 1-1/8" to 1-1/4" tapered steerer · Carbon Fiber
Drivetrain
Check drivetrain wear →Archived: Group: Shimano Ultegra · Shifters: Shimano RS685 · Front derailleur: Shimano Ultegra 6800, braze-on · Rear derailleur: Shimano Ultegra 6800 GS · Crankset: Cannondale HollowGram Si, BB30A, FSA rings, 50/34 · Bottom bracket: FSA BB30 · Rear cogs: SHIMANO 105 CS 5800, 11-32, 11 SPEED · Chain: Shimano HG600, 11-speed
Brakes
Inspect the brakes →Archived: Brakes: Shimano RS685 hydraulic disc, 140/140
Wheels and tires
Check wheels and tires →Archived: Wheel size: 700c · Rims: Mavic Aksium One Disc WTS · Hubs: Mavic Aksium One Disc, Centerlock · Front tire: Mavic Aksion WTS, 700x28c, folding
Controls and contact points
Archived: Headset: Synapse Si, 1-1/4" lower bearing, 25mm top cap · Handlebar: Cannondale C2 Compact, butted 2014 alloy · Stem: Cannondale C2, 6061 Alloy, 31.8, 6 deg. · Seatpost: Cannondale C2, UD Carbon, 25.4x300mm (48-51) 350mm (54-61) · Saddle: Fabric Spoon Shallow, Ti Rail
Before and during the test ride
Follow the full used-bike inspection order →Have you owned this bike?Help document firsthand fit, ride and maintenance details that may no longer be available.
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.
