2021 Cannondale F-Si Carbon 2

A 29″ / 29″ carbon frame hardtail crosscountry bike with ultra high-end components, priced near the middle of the F-Si model range. Compare the full range

2021 Cannondale F-Si Carbon 2
MSRP$5,550
Weight20.9 lbs
SuspensionHardtail
Travel100mm front
FrameCarbon
ForkCannondale Lefty Ocho Carbon

Wheels29″ / 29″ Carbon
Drivetrain1 × 12
GroupsetXTR

BrakesHydraulic Disc
Where to Buy
Similar Bikes Available Now
Compare With Similar Bikes

View more similar bikes »


Gearing

1 × 12 — 12 speed

F-Si Carbon 2

29 mph

Similar Bikes

27 mph

The F-Si Carbon 2 is geared about the same as similar bikes for riding up hills.

Similar bikes won‘t keep up with the F-Si Carbon 2 while riding downhill or sprinting.


Estimated Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more. Learn more

Spec level →$0$1,000$2,000$3,000$4,000$5,000
This bike
Other crosscountry bikes

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

McCoy

A sleek, race-ready cross-country weapon

December 2019Read Full Review 

MTBR
Review: Cannondale F-Si Throwback

- Mtbr.com

October 2019Read Full Review 

BikeRadar
Cannondale F-Si Hi-Mod World Cup review

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

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

January 2019Read Full Review 

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

Steve Solt

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

November 2018Read Full Review 

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

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.

May 2018Read Full Review 


Geometry

Sizing
SM

5'2" – 5'5"

MD

5'5" – 5'10"

LG

5'7" – 6'1"

XL

6'0" – 6'6"


Specs
Build
Frame

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

BB StandardPF30, press-fit

ColorMercury

Fork

Lefty Ocho Carbon, 100mm, Chamber Damper with remote lockout, OppO Spring System, tapered steerer, 55mm offset (29"), 50mm offset (27.5)

Bottom Bracket

Cannondale Alloy PressFit30

Headset

Integrated, 1-1/8 to 1.5", sealed angular contact bearings (Integrated steer stop size small only)

Stem

Cannondale 2, 6061 Alloy, 31.8, 7°

Handlebar

Cannondale 1 Flat, Carbon, 31.8mm, 9° back, 760mm

Saddle

Prologo Dimension NDR, Tirox rails

Seatpost

Cannondale 2, UD Carbon, 27.2 x 400mm

Pedals

Not included

Grips

ESI Chunky Silicone, 32mm dia.

Groupset
Rear Derailleur

Shimano XTR

Crank

HollowGram, BB30a, OPI SpideRing, 34T, Ai offset

Shifters

Shimano XT, 12-speed

Cassette

Shimano XT, 10-51, 12-speed

Chain

Shimano XT, 12-speed

Brakes

Shimano XT hydraulic disc, 160/160mm XT rotors

Brake Levers

Shimano XT hydraulic disc

Wheels
Rims

HollowGram 25, Superlight Hi-Impact Carbon, 28h, 25mm IW, tubeless ready

Spokes

HollowGram, 2.0/1.8/2.0, straight-pull

Front Hub

(F) HollowGram Lefty 60 / (R) HollowGram w/DT Swiss Star Ratchet internals, 12x148mm

Rear Hub

(F) HollowGram Lefty 60 / (R) HollowGram w/DT Swiss Star Ratchet internals, 12x148mm

Tires

(F) Schwalbe Racing Ray EVO, 29 x 2.25", SnakeSkin, Addix Speedgrip, tubeless ready, (R) Schwalbe Racing Ralph EVO, 29 x 2.25", SnakeSkin, Addix Speed, tubeless ready

Riders Also Viewed

Deals