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Bicycle comparison

2021 Cannondale F-Si Carbon 3 · 2020 Cannondale F-Si Carbon 3

Specification2021 Cannondale F-Si Carbon 32020 Cannondale F-Si Carbon 3
Overview
Model year20212020
BrandCannondaleCannondale
ModelF-Si Carbon 3F-Si Carbon 3
Bicycle typeMountainMountain
Archive ID900004707900002986
ColorsBlack Pearl (BPL)Acid Red (ARD); Matte Black (BBQ)
SizesS, M, L, XLS, M, L, XL
Frameset
Frame constructionBallisTec Carbon, SAVE, PF30-83, tapered head tube, Speed Release 12mm thru axle, Ai OffsetBallisTec Carbon, SAVE, PF30-83, tapered head tube, Speed Release 12mm thru axle, Ai Offset
Frame materialCarbonCarbon
ForkLefty Ocho, 100mm, Chamber Damper with remote lockout, OppO Spring System, tapered steerer, 55mm offsetLefty Ocho, 29”, 100mm, Chamber Damper with cable lockout, OppO Spring System, tapered steerer, 55mm offset
Drivetrain
ShiftersShimano SLX, 12-speedSRAM GX Eagle, 12-speed
Rear derailleurShimano XTSRAM GX Eagle
CranksetHollowGram, BB30a, OPI SpideRing, 34TTruvativ Stylo 6K DUB, 34T, Ai offset
Bottom bracketCannondale Alloy PressFit30SRAM DUB PF30 MTB83
Rear cogsShimano SLX, 10-51, 12-speedSRAM PG-1230, NX Eagle, 11-50, 12-speed
ChainShimano SLX, 12-speedSRAM GX Eagle, 12-speed
PedalsNot includedNot Included
Brakes
BrakesShimano Deore hydraulic disc, 160/160mm RT66 rotorsSRAM Level T hydro disc, 160/160mm Centerline rotors
Cockpit & contact points
HeadsetIntegrated, 1-1/8 to 1.5”, sealed angular contact bearings (Integrated steer stop size small and extra small only)Integrated, 1-1/8 to 1.5”, sealed angular contact bearings (Integrated steer stop size small only)
HandlebarCannondale 2 Flat, butted 2014 Alloy, 31.8mm, 3° rise, 8° sweep, 760mmCannondale 2 Flat, butted 2014 Alloy, 31.8mm, 3° rise, 8° sweep, 760mm
StemCannondale 3, 6061 Alloy, 31.8, 7°Cannondale 3, 6061 Alloy, 31.8, 7°
SaddleFabric Scoop Shallow Elite, cro-mo railsFabric Scoop Flat Elite, cro-mo rails
SeatpostCannondale 2, Carbon, 27.2 x 400mm, 0mm offsetCannondale 2, Carbon, 27.2 x 400mm, 0mm offset
Wheels & tires
Hubs(F) Lefty 60 / (R) Shimano SLX, 12x148mm thru-axle(F) Stan’s NoTubes Neo Lefty (R) Stan’s NoTube’s Neo 12x148 w/HG driver
RimsStan’s NoTubes Crest MK3, 28h, tubeless readyStan’s NoTubes Crest MK3, 28h, tubeless ready
SpokesDT Swiss CompetitionDT Swiss Competition, straight pull (Ai Offset dish - rear)
Front tireSchwalbe Racing Ray Performance, 29 x 2.25”, Addix Compound, tubeless ready,Schwalbe Racing Ray Performance 27.5/29 x 2.25”, Addix Compound, tubeless ready
Rear tireSchwalbe Racing Ralph Performance, 29 x 2.25”, Addix Compound, tubeless readySchwalbe Racing Ralph Performance 27.5/29 x 2.25” rear, Addix compound, tubeless ready
Wheel size2929"

Geometry comparison

One selected size or frame position per bicycle, matching the comparison dropdown choices used when Print / PDF was opened.

Measurement2021 Cannondale F-Si Carbon 32020 Cannondale F-Si Carbon 3
Selected size / positionMMD (29“)
Reach420 mm420 mm
Stack612 mm612 mm
Effective top tube606 mm606 mm
Head-tube angle69°69°
Seat-tube angle73.1°73.1°
Seat tube430 mm430 mm
Head tube101 mm101 mm
Chainstay / rear center427 mm427 mm
Wheelbase1110 mm1110 mm
Bottom-bracket drop62 mm62 mm
Bottom-bracket height308 mm308 mm
Standover height793 mm793 mm
Fork offset / rake55 mm55 mm
Front center691 mm691 mm
Trail82 mm82 mm
Wheel size29—

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on November 7, 2026.