Bicycle Archive · Specification reportBicycle Archive · Specification report2021 Cannondale F-Si Carbon 3 · 2018 Cannondale F-Si Carbon 3
| Specification | 2021 Cannondale F-Si Carbon 3 | 2018 Cannondale F-Si Carbon 3 |
|---|---|---|
| Overview | ||
| Model year | 2021 | 2018 |
| Brand | Cannondale | Cannondale |
| Model | F-Si Carbon 3 | F-Si Carbon 3 |
| Bicycle type | Mountain | Mountain |
| Archive ID | 900004707 | 900002665 |
| Colors | Black Pearl (BPL) | Nearly Black w/ Jet Black and Acid Red - Gloss (NBL) |
| Sizes | S, M, L, XL | S (27.5"), M (29"), L (29"), XL (29") |
| Frameset | ||
| Frame construction | BallisTec Carbon, SAVE, PF30-83, tapered head tube, Speed Release 12mm thru axle, Ai Offset | F-Si, BallisTec Carbon, SPEED SAVE, PF30A, 1.5 Si Head Tube, Ai Offset, 27.5” (S), 29” (M-XL) |
| Frame material | Carbon | Carbon |
| Fork | Lefty Ocho, 100mm, Chamber Damper with remote lockout, OppO Spring System, tapered steerer, 55mm offset | Lefty 2.0 Alloy OPI, 2Spring, 100mm, PBR Isolated Damper Technology with XC+ tune, 55mm offset (29), 50mm offset (27.5) |
| Fork material | — | Aluminum |
| Drivetrain | ||
| Shifters | Shimano SLX, 12-speed | Shimano XT, 2x11 |
| Front derailleur | — | Shimano XT, direct mount |
| Rear derailleur | Shimano XT | Shimano XT, Shadow Plus, 11-speed |
| Crankset | HollowGram, BB30a, OPI SpideRing, 34T | Cannondale Si, Ai, BB30, FSA 26/36 rings |
| Bottom bracket | Cannondale Alloy PressFit30 | Cannondale Alloy PressFit30 |
| Rear cogs | Shimano SLX, 10-51, 12-speed | Shimano SLX , 11-42, 11-speed |
| Chain | Shimano SLX, 12-speed | Shimano CN-HG601, 11-speed |
| Pedals | Not included | N/A |
| Brakes | ||
| Brakes | Shimano Deore hydraulic disc, 160/160mm RT66 rotors | Magura MT-RACE w/ Storm SL Rotors, 180/160mm |
| Cockpit & contact points | ||
| Headset | Integrated, 1-1/8 to 1.5”, sealed angular contact bearings (Integrated steer stop size small and extra small only) | Cannondale HeadShok Si |
| Handlebar | Cannondale 2 Flat, butted 2014 Alloy, 31.8mm, 3° rise, 8° sweep, 760mm | Cannondale C2 flat, Butted AL2014 Alloy, 700mm |
| Stem | Cannondale 3, 6061 Alloy, 31.8, 7° | Cannondale C1, 6061 Alloy, 1.5”, 31.8, -5° |
| Saddle | Fabric Scoop Shallow Elite, cro-mo rails | Prologo Zero II STN Rail |
| Seatpost | Cannondale 2, Carbon, 27.2 x 400mm, 0mm offset | Cannondale C2, 7075 alloy, 27.2mm x 400mm |
| Wheels & tires | ||
| Hubs | (F) Lefty 60 / (R) Shimano SLX, 12x148mm thru-axle | Lefty 60 front, Custom Formula 1702 Ai Offset dish - Rear |
| Rims | Stan’s NoTubes Crest MK3, 28h, tubeless ready | Stan’s NoTubes Crest MK3, Tubeless Ready |
| Spokes | DT Swiss Competition | DT-Swiss Competition (Ai Offset dish - Rear) |
| Front tire | Schwalbe Racing Ray Performance, 29 x 2.25”, Addix Compound, tubeless ready, | Schwalbe Racing Ralph EVO Performance, 29/27.5x2.1”, Tubeless Ready |
| Rear tire | Schwalbe Racing Ralph Performance, 29 x 2.25”, Addix Compound, tubeless ready | Schwalbe Racing Ralph EVO Performance, 29/27.5x2.1”, Tubeless Ready |
| Wheel size | 29 | 27.5" |
One selected size or frame position per bicycle, matching the comparison dropdown choices used when Print / PDF was opened.
| Measurement | 2021 Cannondale F-Si Carbon 3 | 2018 Cannondale F-Si Carbon 3 |
|---|---|---|
| Selected size / position | M | M (29") |
| Reach | 420 mm | 414 mm |
| Stack | 612 mm | 603 mm |
| Effective top tube | 606 mm | 596 mm |
| Head-tube angle | 69° | 69.7° |
| Seat-tube angle | 73.1° | 73.2° |
| Seat tube | 430 mm | 435 mm |
| Head tube | 101 mm | 97 mm |
| Chainstay / rear center | 427 mm | 429 mm |
| Wheelbase | 1110 mm | 1097 mm |
| Bottom-bracket drop | 62 mm | 62 mm |
| Bottom-bracket height | 308 mm | 308 mm |
| Standover height | 793 mm | 777 mm |
| Fork offset / rake | 55 mm | 55 mm |
| Front center | 691 mm | 676 mm |
| Trail | 82 mm | 78 mm |
| Wheel size | 29 | — |
Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on November 7, 2026.