Bicycle comparison

Specification	2021 Cannondale F-Si Carbon 3	2019 Cannondale F-Si Carbon 3
Overview
Model year	2021	2019
Brand	Cannondale	Cannondale
Model	F-Si Carbon 3	F-Si Carbon 3
Bicycle type	Mountain	Mountain
Archive ID	900004707	900002806
Colors	Black Pearl (BPL)	Vulcan w/ Green Clay and Volt - Gloss (VUG); Acid Red w/ Jet Black and Fine Silver - Gloss (ARD)
Sizes	S, M, L, XL	S, M, L, XL
Frameset
Frame construction	BallisTec Carbon, SAVE, PF30-83, tapered head tube, Speed Release 12mm thru axle, Ai Offset	ALL-NEW F-Si, BallisTec Carbon, SAVE, PF30A, tapered head tube, Speed Release 12mm thru axle, Ai Offset
Frame material	Carbon	Carbon
Fork	Lefty Ocho, 100mm, Chamber Damper with remote lockout, OppO Spring System, tapered steerer, 55mm offset	ALL-NEW Lefty Ocho, 29”, 100mm, Chamber Damper with cable lockout, OppO Spring System, tapered steerer, 55mm offset
Drivetrain
Shifters	Shimano SLX, 12-speed	SRAM GX Eagle, 12-speed
Rear derailleur	Shimano XT	SRAM GX Eagle
Crankset	HollowGram, BB30a, OPI SpideRing, 34T	Truvativ Stylo 6K, 34T, Ai Custom
Bottom bracket	Cannondale Alloy PressFit30	Cannondale Alloy PressFit30
Rear cogs	Shimano SLX, 10-51, 12-speed	SRAM PG-1230, NX Eagle, 10-50, 12-speed
Chain	Shimano SLX, 12-speed	SRAM GX Eagle, 12-speed
Pedals	Not included	Not Included
Brakes
Brakes	Shimano Deore hydraulic disc, 160/160mm RT66 rotors	SRAM Level T hydro disc, 160/160mm Centerline rotors
Cockpit & contact points
Headset	Integrated, 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)
Handlebar	Cannondale 2 Flat, butted 2014 Alloy, 31.8mm, 3° rise, 8° sweep, 760mm	Cannondale C2 Flat, butted 2014 Alloy, 8° sweep, 760mm
Stem	Cannondale 3, 6061 Alloy, 31.8, 7°	Cannondale C3, 3D Forged 6061 Alloy, 1-1/8”, 31.8, 7°
Saddle	Fabric Scoop Shallow Elite, cro-mo rails	Fabric Scoop Flat Elite, cro-mo rails
Seatpost	Cannondale 2, Carbon, 27.2 x 400mm, 0mm offset	Cannondale C2, Carbon, 27.2 x 400mm
Wheels & tires
Hubs	(F) Lefty 60 / (R) Shimano SLX, 12x148mm thru-axle	Stan’s NoTubes Neo Lefty front, Neo 12x148 rear w/HG driver
Rims	Stan’s NoTubes Crest MK3, 28h, tubeless ready	Stan’s NoTubes Crest MK3, 28h, 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 Ray Performance 29 x 2.25” front, Racing Ralph Performance 2.25” rear, Addix Compound, tubeless ready
Rear tire	Schwalbe Racing Ralph Performance, 29 x 2.25”, Addix Compound, tubeless ready	Schwalbe Racing Ray Performance 29 x 2.25” front, Racing Ralph Performance 2.25” rear, Addix Compound, tubeless ready
Wheel size	29	29"

Specification

2021 Cannondale F-Si Carbon 3

2019 Cannondale F-Si Carbon 3

Overview

Model year

2021

2019

Brand

Cannondale

Model

F-Si Carbon 3

Bicycle type

Mountain

Archive ID

900004707

900002806

Colors

Black Pearl (BPL)

Vulcan w/ Green Clay and Volt - Gloss (VUG); Acid Red w/ Jet Black and Fine Silver - Gloss (ARD)

Sizes

S, M, L, XL

Frameset

Frame construction

BallisTec Carbon, SAVE, PF30-83, tapered head tube, Speed Release 12mm thru axle, Ai Offset

ALL-NEW F-Si, BallisTec Carbon, SAVE, PF30A, tapered head tube, Speed Release 12mm thru axle, Ai Offset

Frame material

Carbon

Fork

Lefty Ocho, 100mm, Chamber Damper with remote lockout, OppO Spring System, tapered steerer, 55mm offset

ALL-NEW Lefty Ocho, 29”, 100mm, Chamber Damper with cable lockout, OppO Spring System, tapered steerer, 55mm offset

Drivetrain

Shifters

Shimano SLX, 12-speed

SRAM GX Eagle, 12-speed

Rear derailleur

Shimano XT

SRAM GX Eagle

Crankset

HollowGram, BB30a, OPI SpideRing, 34T

Truvativ Stylo 6K, 34T, Ai Custom

Bottom bracket

Cannondale Alloy PressFit30

Rear cogs

Shimano SLX, 10-51, 12-speed

SRAM PG-1230, NX Eagle, 10-50, 12-speed

Chain

Shimano SLX, 12-speed

SRAM GX Eagle, 12-speed

Pedals

Not included

Not Included

Brakes

Shimano Deore hydraulic disc, 160/160mm RT66 rotors

SRAM Level T hydro disc, 160/160mm Centerline rotors

Cockpit & contact points

Headset

Integrated, 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)

Handlebar

Cannondale 2 Flat, butted 2014 Alloy, 31.8mm, 3° rise, 8° sweep, 760mm

Cannondale C2 Flat, butted 2014 Alloy, 8° sweep, 760mm

Stem

Cannondale 3, 6061 Alloy, 31.8, 7°

Cannondale C3, 3D Forged 6061 Alloy, 1-1/8”, 31.8, 7°

Saddle

Fabric Scoop Shallow Elite, cro-mo rails

Fabric Scoop Flat Elite, cro-mo rails

Seatpost

Cannondale 2, Carbon, 27.2 x 400mm, 0mm offset

Cannondale C2, Carbon, 27.2 x 400mm

Wheels & tires

Hubs

(F) Lefty 60 / (R) Shimano SLX, 12x148mm thru-axle

Stan’s NoTubes Neo Lefty front, Neo 12x148 rear w/HG driver

Rims

Stan’s NoTubes Crest MK3, 28h, 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 Ray Performance 29 x 2.25” front, Racing Ralph Performance 2.25” rear, Addix Compound, tubeless ready

Rear tire

Schwalbe Racing Ralph Performance, 29 x 2.25”, Addix Compound, tubeless ready

Schwalbe Racing Ray Performance 29 x 2.25” front, Racing Ralph Performance 2.25” rear, Addix Compound, tubeless ready

Wheel size

29"

Geometry comparison

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	2019 Cannondale F-Si Carbon 3
Selected size / position	M	M (29“)
Reach	420 mm	420 mm
Stack	612 mm	612 mm
Effective top tube	606 mm	606 mm
Head-tube angle	69°	69°
Seat-tube angle	73.1°	73.1°
Seat tube	430 mm	430 mm
Head tube	101 mm	101 mm
Chainstay / rear center	427 mm	427 mm
Wheelbase	1110 mm	1110 mm
Bottom-bracket drop	62 mm	62 mm
Bottom-bracket height	308 mm	308 mm
Standover height	793 mm	793 mm
Fork offset / rake	55 mm	55 mm
Front center	691 mm	691 mm
Trail	82 mm	82 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.