2018 Cannondale

F-Si Carbon 3

A 29″ carbon frame hardtail crosscountry bike with high-end components.
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Manufacturer Price

$3,199
FrameCarbon
SuspensionHardtail, 100mm
ForkCannondale Lefty
Wheels29″ Aluminum
Drivetrain2 × 11
GroupsetXT, FSA
BrakesHydraulic Disc
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

28 mph

F-Si Carbon 3

27 mph

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Highest gear

(descending)

Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

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Reviews
Mountain Bike Action
MBA Bike Test: Cannondale F-Si Carbon 3

Dec 2019 · McCoy

A sleek, race-ready cross-country weapon

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BikeRadar
Cannondale F-Si Hi-Mod World Cup review

Jan 2019 · Guy Kesteven

Uniquely-forked, arse-kicking ultralight XC racer but not for the faint-hearted or under-financed. Buy if you want a fast and ferocious XC racer

Highs
  • Unique fork and wishlist kit spec make it a real head turner, seriously light yet stiff enough to track hard, well-controlled but lightweight fork, nicely balanced between max power delivery and reasonable punishment

Lows
  • Unique features can create spares issues, high cost goes with the territory, not the lightest frame, fork or off-the-peg bike

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Bicycling
The Cannondale F-Si Carbon 2 Is a Privateer Racer's Dream

Nov 2018 · Steve Solt

This carbon hardtail is light, sharp, and features the distinctive Lefty Ocho fork

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Bikerumor
First Rides: Cannondale F-Si hardtail & Lefty Ocho fork on a World Cup XC course

May 2018

Before the World Cup XC racing in Albstadt, we put in some first rides on Cannondale's next gen carbon XC hardtail & its all-new single crown Lefty fork. Built as an ultimate hardtail for steep & technically challenging modern courses, we turned some hot laps on the World Cup track, riding with the bike's design team.

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Canadian Cycling Magazine
Trail Test: The Cannondale F-Si Carbon 2, an entry model with top specs for tearing up the XC course

Oct 2015 · Canadian Cycling Magazine

A brand’s base model of a bike line usually shows cost-saving choices throughout its spec. Often the frame material and production process are altered as well.

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Velo
Pro Bike Gallery: Keegan Swenson’s Cannondale F-Si Carbon Team

Jun 2015 · Logan VonBokel

The reigning U23 cross-country national champion's ride is chock-full of ENVE carbon, Cannondale tech, and American livery.

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MTBR
Pro Bike: Marco Fontana’s Cannondale F-Si Carbon Team

Mar 2015

Lightweight racer of Italian national XC champ and Olympic bronze medalist spec'd with SRAM XX1 drivetrain, ENVE wheels, and Prologo saddle and grips. - Mtbr.com

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Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

F-Si, BallisTec Carbon, SAVE, PF30A, 1.5 Si Head Tube, Ai Offset, 27.5" (S), 29" (M-XL)

BB StandardPF30, Press Fit

Fork

Lefty 2.0 Alloy OPI, 2Spring, 100mm, PBR Isolated Damper Technology with XC+ tune, 55mm offset (29), 50mm offset (27.5)

Travel100mm

Bottom Bracket

Cannondale Alloy PressFit30

Headset

Cannondale HeadShok Si

Stem

Cannondale C1, 6061 Alloy, 1.5", 31.8, -5°

Handlebar

Cannondale C2 flat, Butted AL2014 Alloy, 700mm

Saddle

Prologo Zero II STN Rail

Seatpost

Cannondale C2, 7075 alloy, 27.2mm x 400mm

TypeRigid

Pedals

Not included

Grips

Cannondale Locking Grips

Groupset
Rear Derailleur

Shimano XT, Shadow Plus, 11-speed

Front Derailleur

Shimano XT, direct mount

Crank

Cannondale Si, Ai, BB30, FSA 26/36 rings

Shifters

Shimano XT, 2x11

Cassette

Shimano SLX, 11-42, 11-speed

Chain

Shimano CN-HG601, 11-speed

Brakes

Magura MT-RACE w/ Storm SL Rotors, 180/160mm

TypeHydraulic Disc

Brake Levers

Magura MT-RACE w/ Carbotecture body, reach adjust, Shiftmix

Wheels
Rims

Stan's NoTubes Crest MK3, Tubeless Ready

Spokes

DT-Swiss Competition (Ai Offset dish - Rear)

Front Hub

Lefty 60 front, Custom Formula 1702 (Ai Offset dish - Rear), QR

Rear Hub

Lefty 60 front, Custom Formula 1702 (Ai Offset dish - Rear), QR

Tires

Schwalbe Racing Ralph EVO Performance, 29/27.5x2.1", Tubeless Ready

Rider Notes
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Last updated February 20
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