Velopedia Bicycle Archive
2020 Cannondale Fat CAAD 1
Original specifications: 27.5" wheels · geometry for 5 published sizes.
Selling this bike? Get the spec link and selling options
At a glance
- Model year
- 2020
- Category
- Mountain
- Sizes
- XS, S, M, L, XL
- Colors
- Charcoal Gray (GRY)
- Geometry
- 5 manufacturer sizes
- In this record
- 22 specifications · archived image · geometry
- Archive ID
- 900003111
Model history 2 other years
Original buildAluminum · 27.5"
Frameset
| Frame Construction | SmartForm C1 Alloy, BB30XL, SAVE, 1.5 Si head tube |
|---|---|
| Frame Material | Aluminum |
| Fork | Cannondale Fatty, Fat Rigid, 15x150mm, 1.5 tapered steerer, 55mm offset |
Drivetrain
| Shifters | Shimano SLX, 11-speed |
|---|---|
| Rear Derailleur | Shimano SLX GS |
| Crankset | Cannondale 1, BB30, Ai Offset SpideRing, X-Sync®, 30T |
| Bottom Bracket | Cannondale BB30XL |
| Rear Cogs | Sunrace, 11-46, 11-speed |
| Chain | KMC X11, 11-speed |
| Pedals | Not Included |
Brakes
| Brakes | Tektro 4-piston hydro disc, 180/160mm rotors |
|---|
Cockpit & Contact Points
| Headset | Tange Seiki, Integrated, 1-1/8”-1-1/2” |
|---|---|
| Handlebar | Cannondale 3 Riser, 6061 Alloy, 15mm rise, 8° sweep, 4° rise, 780mm |
| Stem | Cannondale 3, 6061 Alloy, 31.8, 7° |
| Saddle | Cannondale Stage 3 |
| Seatpost | Cannondale 3, 6061 Alloy, 31.6 x 400mm |
Wheels & Tires
| Hubs | (F) Sun Ringle SRC 15x150 (R) Sun Ringle SRC 12x197 |
|---|---|
| Rims | Sun Ringle Mulefüt 80 SL, tubeless ready |
| Spokes | Stainless Steel, 14g |
| Front Tire | (F) Maxxis Minion FBF, 27.5 x 3.8”, EXO, tubeless ready (R) Maxxis Minion FBR, 27.5 x 3.8”, EXO, tubeless ready |
| Rear Tire | (F) Maxxis Minion FBF, 27.5 x 3.8”, EXO, tubeless ready (R) Maxxis Minion FBR, 27.5 x 3.8”, EXO, tubeless ready |
| Wheel Size | 27.5" |
Geometry
Frame measurements by size.
Frame diagram
Select an available measurement to locate it on the frame.
All geometry measurements5 sizes · 16 measurements
| Measurement | XS | SM | MD | LG | XL |
|---|---|---|---|---|---|
| Seat tube | 370 mm | 390 mm | 440 mm | 490 mm | 540 mm |
| Effective top tube | 562 mm | 587 mm | 610 mm | 634 mm | 647 mm |
| Top tube | 555 mm | 571 mm | 587 mm | 608 mm | 622 mm |
| Head tube | 97 mm | 97 mm | 110 mm | 122 mm | 134 mm |
| Head-tube angle | 69° | 69° | 69° | 69° | 69° |
| Seat-tube angle | 73° | 73° | 73° | 73° | 73° |
| Chainstay / rear center | 456 mm | 456 mm | 456 mm | 456 mm | 456 mm |
| Wheelbase | 1095 mm | 1120 mm | 1144 mm | 1169 mm | 1183 mm |
| Bottom-bracket drop | 58 mm | 58 mm | 58 mm | 58 mm | 58 mm |
| Bottom-bracket height | 324 mm | 324 mm | 324 mm | 324 mm | 324 mm |
| Reach | 384 mm | 409 mm | 429 mm | 449 mm | 459 mm |
| Stack | 582 mm | 582 mm | 594 mm | 606 mm | 617 mm |
| Standover height | 760 mm | 764 mm | 800 mm | 838 mm | 874 mm |
| Fork offset / rake | 55 mm | 55 mm | 55 mm | 55 mm | 55 mm |
| Front center | 645 mm | 670 mm | 695 mm | 719 mm | 733 mm |
| Trail | 87 mm | 87 mm | 87 mm | 87 mm | 87 mm |
Dimensions as recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM = pedal turns per minute.
Speed unavailable: wheel or tire size is missing or unclear.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Parts & serviceability
Find replacement parts
More parts (5)

ENVE Twin Bolt Seatpost - Zero Offset UD Carbon, 31.6x400mm
31.6x400mm
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 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 Fat CAAD 1 · Mountain · Published sizes: XS, S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: SmartForm C1 Alloy, BB30XL, SAVE, 1.5 Si head tube · Fork: Cannondale Fatty, Fat Rigid, 15x150mm, 1.5 tapered steerer, 55mm offset
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano SLX, 11-speed · Rear derailleur: Shimano SLX GS · Crankset: Cannondale 1, BB30, Ai Offset SpideRing, X-Sync®, 30T · Bottom bracket: Cannondale BB30XL · Rear cogs: Sunrace, 11-46, 11-speed · Chain: KMC X11, 11-speed
Brakes
Inspect the brakes →Archived: Brakes: Tektro 4-piston hydro disc, 180/160mm rotors
Wheels and tires
Check wheels and tires →Archived: Wheel size: 27.5" · Rims: Sun Ringle Mulefüt 80 SL, tubeless ready · Hubs: (F) Sun Ringle SRC 15x150 (R) Sun Ringle SRC 12x197 · Front tire: (F) Maxxis Minion FBF, 27.5 x 3.8”, EXO, tubeless ready (R) Maxxis Minion FBR, 27.5 x 3.8”, EXO, tubeless ready · Rear tire: (F) Maxxis Minion FBF, 27.5 x 3.8”, EXO, tubeless ready (R) Maxxis Minion FBR, 27.5 x 3.8”, EXO, tubeless ready
Controls and contact points
Archived: Headset: Tange Seiki, Integrated, 1-1/8”-1-1/2” · Handlebar: Cannondale 3 Riser, 6061 Alloy, 15mm rise, 8° sweep, 4° rise, 780mm · Stem: Cannondale 3, 6061 Alloy, 31.8, 7° · Seatpost: Cannondale 3, 6061 Alloy, 31.6 x 400mm · Saddle: Cannondale Stage 3 · Pedals: Not Included
Before and during the test ride
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





