
Velopedia Bicycle Archive
2020 Cannondale SystemSix Carbon Ultegra Di2
Original manufacturer specifications including 700c wheels, geometry for 7 published sizes.
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What Velopedia knows
- Model year
- 2020
- Category
- Road
- Sizes
- 47, 51, 54, 56, 58, 60, 62
- Colors
- Team Replica (REP), Sage Gray (SGG)
- Geometry
- 7 manufacturer sizes · Geometry context
- Record coverage
- 24 preserved details · 2 archived images · preserved geometry
- Archive ID
- 900002444
Frameset
| Frame Construction | BallisTec Carbon, integrated cable routing w/ Switchplate, SAVE, PF30a, flat mount disc, 142x12 Speed Release thru-axle |
|---|---|
| Frame Material | Carbon |
| Fork | BallisTec Carbon, 1-1/8” - 1-1/4” steerer, 12x100mm Speed Release thru-axle, flat mount disc, 55mm offset (47-51cm) 45mm offset (54-62cm) |
| Fork Material | Carbon |
Drivetrain
| Shifters | Shimano Ultegra Di2 hydro disc, 2x11 |
|---|---|
| Front Derailleur | Shimano Ultegra Di2, braze-on |
| Rear Derailleur | Shimano Ultegra Di2 |
| Crankset | HollowGram, BB30a w/ OPI SpideRing, 52/36 |
| Bottom Bracket | Cannondale Alloy PressFit30 |
| Rear Cogs | Shimano Ultegra, 11-30, 11-speed |
| Chain | Shimano HG701, 11-speed |
| Pedals | Not Included |
Brakes
| Brakes | Shimano Ultegra Di2 hydro disc, 160/140mm RT800 rotors |
|---|
Cockpit & Contact Points
| Headset | Tapered, 1-1/8” upper, 1-1/4” lower bearing |
|---|---|
| Handlebar | HollowGram SystemBar KNØT, alloy w/ cable cover |
| Stem | HollowGram Stem KNØT, alloy w/ cable cover, -17° |
| Saddle | Prologo Dimension NDR, 143mm width, Tirox rails |
| Seatpost | HollowGram 60 KNØT Carbon, 330mm |
Wheels & Tires
| Hubs | (F) HollowGram KNØT, sealed bearing 12x100 centerlock / (R) HollowGram KNØT, 12x142 centerlock w/ DT Swiss internals |
|---|---|
| Rims | HollowGram 64 SL KNØT, Carbon, 20h front, 24h rear, 64mm deep, 21mm ID, tubeless ready |
| Spokes | DT Swiss Aerolite, straight pull |
| Front Tire | Vittoria Rubino Pro Speed, 700 x 26mm (23c) |
| Rear Tire | Vittoria Rubino Pro Speed, 700 x 26mm (23c) |
| Wheel Size | 700c |
Size-specific frame data
Geometry
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | 47 | 51 | 54 | 56 | 58 | 60 | 62 |
|---|---|---|---|---|---|---|---|
| Seat tube | 385 mm | 433 mm | 482 mm | 530 mm | 553 mm | 577 mm | 600 mm |
| Effective top tube | 514 mm | 529 mm | 544 mm | 560 mm | 576 mm | 592 mm | 609 mm |
| Head tube | 88 mm | 114 mm | 128 mm | 149 mm | 172 mm | 193 mm | 214 mm |
| Head-tube angle | 71.2° | 71.2° | 73° | 73° | 73° | 72.9° | 72.9° |
| Seat-tube angle | 75.1° | 74.7° | 74.3° | 73.9° | 73.5° | 73.1° | 72.7° |
| Chainstay / rear center | 405 mm | 405 mm | 405 mm | 405 mm | 405 mm | 405 mm | 405 mm |
| Wheelbase | 974 mm | 989 mm | 975 mm | 987 mm | 1000 mm | 1012 mm | 1024 mm |
| Bottom-bracket drop | 79 mm | 74 mm | 72 mm | 72 mm | 69 mm | 69 mm | 69 mm |
| Bottom-bracket height | 261 mm | 266 mm | 269 mm | 269 mm | 271 mm | 271 mm | 271 mm |
| Reach | 375 mm | 381 mm | 386 mm | 392 mm | 398 mm | 403 mm | 409 mm |
| Stack | 500 mm | 520 mm | 540 mm | 560 mm | 580 mm | 600 mm | 620 mm |
| Standover height | 680 mm | 723 mm | 762 mm | 798 mm | 821 mm | 843 mm | 863 mm |
| Fork offset / rake | 55 mm | 55 mm | 45 mm | 45 mm | 45 mm | 45 mm | 45 mm |
| Front center | 582 mm | 595 mm | 581 mm | 593 mm | 605 mm | 617 mm | 629 mm |
| Trail | 58 mm | 58 mm | 57 mm | 57 mm | 57 mm | 58 mm | 58 mm |
Geometry source: Cannondale MY20 Dealer Book, PDF page 35 Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Geometry tools
Analyze a published size
47 geometry
Archive context: Its trail of 58 mm sits toward the lower-trail end. Its bottom-bracket drop of 79 mm sits toward the deeper-drop end. The chainstay of 405 mm sits toward the shorter rear-center end.
Compared with 16 distinct road geometries in the XS-equivalent size cohort from model years 2018–2022 in the Velopedia archive.51 geometry
Archive context: Its stack of 520 mm sits toward the lower end. The seat angle of 74.7° sits toward the steeper end. The chainstay of 405 mm sits toward the shorter rear-center end.
Compared with 25 distinct road geometries in the Small-equivalent size cohort from model years 2018–2022 in the Velopedia archive.54 geometry
Archive context: Its wheelbase of 975 mm sits toward the shorter end. Its stack of 540 mm sits toward the lower end. The head angle of 73° sits toward the steeper end.
Compared with 23 distinct road geometries in the Medium-equivalent size cohort from model years 2018–2022 in the Velopedia archive.56 geometry
Archive context: Its stack of 560 mm sits toward the lower end. Its wheelbase of 987 mm sits toward the shorter end. Its trail of 57 mm sits toward the lower-trail end.
Compared with 17 distinct road geometries in the Large-equivalent size cohort from model years 2018–2022 in the Velopedia archive.58 geometry
Archive context: Its stack of 580 mm sits toward the lower end. Its wheelbase of 1000 mm sits toward the shorter end. The seat angle of 73.5° sits toward the steeper end.
Compared with 12 distinct road geometries in the XL-equivalent size cohort from model years 2018–2022 in the Velopedia archive.60 geometry
Archive context: The chainstay of 405 mm sits toward the shorter rear-center end. The seat angle of 73.1° sits somewhat steeper than typical. Its stack of 600 mm sits somewhat lower than typical.
Compared with 12 distinct road geometries in the XL-equivalent size cohort from model years 2018–2022 in the Velopedia archive.62 geometry
Archive context: The chainstay of 405 mm sits toward the shorter rear-center end. Its reach of 409 mm sits toward the longer end. The head angle of 72.9° sits somewhat slacker than typical.
Compared with 15 distinct road geometries in the XXL-equivalent size cohort from model years 2018–2024 in the Velopedia archive.Parts & serviceability
Find replacement parts
More qualified parts (4)
Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. 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. Commercial relationships do not influence Archive specifications or analysis.
Used-bike inspection
If you’re buying this bike used
Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.
Follow the full used-bike inspection order →- FrameInspect the frame in bright light, especially around the head tube, bottom bracket, chainstays and clamped areas. Look for cracks, ripples, crushed sections or signs of a previous impact.Inspect the frame and fork →
- BrakesBoth brakes should stop firmly and release without rubbing. Inspect pad thickness, rotor wear and alignment, and check the cables or hoses for damage.Inspect the brakes →
- DrivetrainConfirm every shift-system battery charges, every shift control works and the derailleur moves cleanly across the cassette. Make sure the matching shift-system charger is included, then measure chain wear and inspect the cassette teeth.Check drivetrain wear →
- Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads. If it is set up tubeless, confirm both tires hold pressure and ask when the sealant was last refreshed.Check wheels and tires →
Bike-specific inspection checklist 20 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: 2020 Cannondale SystemSix Carbon Ultegra Di2 · Road · Published sizes: 47, 51, 54, 56, 58, 60, 62
Frame and fork
Inspect the frame and fork →Archived: Frame: BallisTec Carbon, integrated cable routing w/ Switchplate, SAVE, PF30a, flat mount disc, 142x12 Speed Release thru-axle · Fork: BallisTec Carbon, 1-1/8” - 1-1/4” steerer, 12x100mm Speed Release thru-axle, flat mount disc, 55mm offset (47-51cm) 45mm offset (54-62cm) · Carbon
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano Ultegra Di2 hydro disc, 2x11 · Front derailleur: Shimano Ultegra Di2, braze-on · Rear derailleur: Shimano Ultegra Di2 · Crankset: HollowGram, BB30a w/ OPI SpideRing, 52/36 · Bottom bracket: Cannondale Alloy PressFit30 · Rear cogs: Shimano Ultegra, 11-30, 11-speed · Chain: Shimano HG701, 11-speed
Brakes
Inspect the brakes →Archived: Brakes: Shimano Ultegra Di2 hydro disc, 160/140mm RT800 rotors
Wheels and tires
Check wheels and tires →Archived: Wheel size: 700c · Rims: HollowGram 64 SL KNØT, Carbon, 20h front, 24h rear, 64mm deep, 21mm ID, tubeless ready · Hubs: (F) HollowGram KNØT, sealed bearing 12x100 centerlock / (R) HollowGram KNØT, 12x142 centerlock w/ DT Swiss internals · Front tire: Vittoria Rubino Pro Speed, 700 x 26mm (23c) · Rear tire: Vittoria Rubino Pro Speed, 700 x 26mm (23c)
Controls and contact points
Archived: Headset: Tapered, 1-1/8” upper, 1-1/4” lower bearing · Handlebar: HollowGram SystemBar KNØT, alloy w/ cable cover · Stem: HollowGram Stem KNØT, alloy w/ cable cover, -17° · Seatpost: HollowGram 60 KNØT Carbon, 330mm · Saddle: Prologo Dimension NDR, 143mm width, Tirox rails · Pedals: Not Included
Before and during the test ride
Follow the full used-bike inspection order →Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Gallery
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




