Rear tire: 26×4.8.
Velopedia Bicycle Archive
2018 Cannondale Fat CAAD 1
Original specifications: 26" wheels · geometry for 5 published sizes.
Selling this bike? Get the spec link and selling options
At a glance
- Model year
- 2018
- Category
- Mountain
- Sizes
- XS, S, M, L, XL
- Colors
- Nitro w/ Anthracite and Acid Red - Gloss (NIT)
- Geometry
- 5 manufacturer sizes
- In this record
- 21 specifications · archived image · geometry
- Archive ID
- 900002701
Model history 2 other years
Original buildAluminum · 26"
Frameset
| Frame Construction | Fat CAAD, SmartForm C1 Alloy, BB30XL, SAVE, 1.5 Si head tube |
|---|---|
| Frame Material | Aluminum |
| Fork | Lefty Olaf, 2Spring, 100mm, PBR Isolated Damper Technology with Fat tune, 60mm offset |
Drivetrain
| Shifters | Shimano SLX, 11-speed |
|---|---|
| Rear Derailleur | Shimano XT, 11-speed |
| Crankset | Cannondale Si, BB30, Fat Offset SpideRing, X-Sync®, 30t |
| Bottom Bracket | Cannondale BB30XL, 166mm spindle / 120mm shell |
| Rear Cogs | Shimano SLX, 11-46, 11-speed |
| Chain | Shimano HG601, 11-speed |
Brakes
| Brakes | SRAM Guide R, Centerline Rotors 180/160mm |
|---|
Cockpit & Contact Points
| Headset | Cannondale HeadShok Si |
|---|---|
| Handlebar | Cannondale C3 riser, Alloy, 4° upsweep, 9° backsweep, 760x15mm |
| Stem | Cannondale C3, 3D-forged 6061 Alloy, 1.5”, 31.8, 6°, 60mm |
| Saddle | Fabric Scoop Shallow Elite |
| Seatpost | TransX Dropper Post, 31.6, 120mm drop, internal routing |
Wheels & Tires
| Hubs | Lefty 73 (front), Sun Ringle SRC, 197x12 thru (rear), 32 hole |
|---|---|
| Rims | Sun Ringle Mulefüt 80 SL, 26”, Tubeless Ready |
| Spokes | DT Swiss Competition |
| Front Tire | Schwalbe Jumbo Jim 26x4.8”, Snakeskin, tubeless-ready |
| Rear Tire | Schwalbe Jumbo Jim 26x4.8”, Snakeskin, tubeless-ready |
| Wheel Size | 26" |
Geometry
Frame measurements by size.
Frame diagram
Select an available measurement to locate it on the frame.
All geometry measurements5 sizes · 15 measurements
| Measurement | XS | S | M | L | 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 | 69.1° | 69.1° | 69.1° | 69.1° | 69.1° |
| Seat-tube angle | 73° | 73° | 73° | 73° | 73° |
| Chainstay / rear center | 456 mm | 456 mm | 456 mm | 456 mm | 456 mm |
| Wheelbase | 1102 mm | 1127 mm | 1152 mm | 1176 mm | 1190 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 | 376 mm | 401 mm | 421 mm | 441 mm | 451 mm |
| Stack | 607 mm | 607 mm | 619 mm | 631 mm | 642 mm |
| Standover height | 760 mm | 764 mm | 800 mm | 838 mm | 874 mm |
| Fork offset / rake | 60 mm | 60 mm | 60 mm | 60 mm | 60 mm |
| Front center | 652 mm | 677 mm | 702 mm | 726 mm | 740 mm |
Dimensions as recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM = pedal turns per minute.
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

Shimano SLX/105 CN-HG601 11-Speed Chain Grey, 126 Links
126 Links

Surly Lou Fat Bike Tire - Tubeless Black, 26x4.8
26x4.8
Replacement option · verify fit

Surly Bud Fat Bike Tire - Tubeless Black, 26x4.8
26x4.8
Replacement option · verify fit
More parts (5)

Shimano Deore XT RD-M8230 Rear Derailleur Max 50t, Min 11t, 11-Speed
11-Speed
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 21 checks based on 6 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: 2018 Cannondale Fat CAAD 1 · Mountain · Published sizes: XS, S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: Fat CAAD, SmartForm C1 Alloy, BB30XL, SAVE, 1.5 Si head tube · Fork: Lefty Olaf, 2Spring, 100mm, PBR Isolated Damper Technology with Fat tune, 60mm offset
Suspension
Evaluate the suspension →Archived: Fork: Lefty Olaf, 2Spring, 100mm, PBR Isolated Damper Technology with Fat tune, 60mm offset
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano SLX, 11-speed · Rear derailleur: Shimano XT, 11-speed · Crankset: Cannondale Si, BB30, Fat Offset SpideRing, X-Sync®, 30t · Bottom bracket: Cannondale BB30XL, 166mm spindle / 120mm shell · Rear cogs: Shimano SLX, 11-46, 11-speed · Chain: Shimano HG601, 11-speed
Brakes
Inspect the brakes →Archived: Brakes: SRAM Guide R, Centerline Rotors 180/160mm
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" · Rims: Sun Ringle Mulefüt 80 SL, 26”, Tubeless Ready · Hubs: Lefty 73 (front), Sun Ringle SRC, 197x12 thru (rear), 32 hole · Front tire: Schwalbe Jumbo Jim 26x4.8”, Snakeskin, tubeless-ready · Rear tire: Schwalbe Jumbo Jim 26x4.8”, Snakeskin, tubeless-ready
Controls and contact points
Archived: Headset: Cannondale HeadShok Si · Handlebar: Cannondale C3 riser, Alloy, 4° upsweep, 9° backsweep, 760x15mm · Stem: Cannondale C3, 3D-forged 6061 Alloy, 1.5”, 31.8, 6°, 60mm · Seatpost: TransX Dropper Post, 31.6, 120mm drop, internal routing · Saddle: Fabric Scoop Shallow Elite
Before and during the test ride
Follow the full used-bike inspection order →Have you owned this bike?Help preserve its real-world history by sharing your owner experience.
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.



