Cannondale F-Si Carbon 1

5.0 stars
 (1 Review)
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Jet Black/Volt
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A race hardtail like no other. Designed to let you out-kick them on the climbs and out-rip them on the descents, this ultralight rocket is your ticket to the top of the podium. Equipped with the Lefty fork, you'll out-corner, out-steer, and out-handle the competition, again and again. Get insane traction with super short chainstays, without being limited to 1x set-ups or sacrificing mud clearance. Cannondale also equips the F-Si with fit-focused wheel diameters to achieve the best possible fit for all riders. With SRAM's XX1/X01 Eagle 12-speed drivetrain and SRAM Level TLM disc brakes, you'll race uphill and carve back down with expert precision. A carbon Cannondale bar, super fast HollowGram carbon rims, and tacky Schwalbe Rocket Ron EVO tires create a slick, race-ready hardtail package that's undeniable and distinctive both on the trail and off.

Features & Info

Geometry chart

Cannondale F-Si geometry chart
Pedals sold separately

Consumer Reviews

5.0 stars

(1 review)

100% of respondents would recommend this to a friend.


  • Best Fork On The Market 
  • Durable 
  • Fast 
  • Nimble 
  • Comfortable 
  • Lightweight 


  • There Are Non 

Best Uses

  • Cross Country Racing 
  • Fast Trail Riding 
  • Trail Riding 

Jul 02, 2015

This is the bike to try you won't go back

Durable, Fast, Nimble, Best Fork On The Market, Comfortable, Lightweight
There Are Non
Best Uses:
Fast Trail Riding, Trail Riding, Cross Country Racing
This bike is absolutely the best feeling bike i have ever had! it feels like all this time i have been riding good bikes but this bike just feels like your cheating and you have an advantage. I have way more confidence with this bike i can go into corners faster then ever before and i can go in to a really technical rock garden or a bumpy section this bike just floats through it with no flex in the front end because of the lefty which it great to feel and this bike isn't a hard tail it is a soft tail you get flex in the back triangle of the frame up and down and not side to side which feels great in the rock garden, nice and soft and nice to push a corner fast and keep that line. i have never ridden a bike like this and i won't go back i am set.
by Brandon from Holland Landing, CA


F-Si, BallisTec Hi-MOD Carbon, SPEED SAVE, PF30A, 1.5 Si Head Tube, Ai Offset, 27.5" (S), 29" (M-XL)
Lefty 2.0 Carbon, 2Spring, 100mm, XLR Isolated Damper Technology with XC+ tune and XLoc remote, 55mm offset (29), 50mm offset (27.5)
Cannondale HeadShok Si
HollowGram 23, Superlight Hi-Impact Carbon, Tubeless Ready, 28hole, 23mm inner
Lefty 60 front, C36 by DT-Swiss Rear, Star Ratchet, 28 hole (Ai Offset dish - Rear)
DT-Swiss Aerolite (Ai Offset dish - Rear)
Schwalbe Rocket Ron EVO Snakeskin, 29x2.25", folding, Tubeless Ready
Truvativ Stylo Carbon Eagle
Bottom Bracket
Cannondale Alloy PressFit30
SRAM Eagle 12 speed
Rear Derailleur
SRAM XX1 Eagle, Type 3 RBC, 12-speed
Cassette/Rear Cogs
SRAM XG-1295 Eagle, 10-50, 12-speed
SRAM X01 Eagle, 12-speed
Cannondale C1 flat, Carbon, 760mm
Cannondale Locking Grips
Cannondale C1, 7075 Alloy, 31.8, -5°
Brake Levers
SRAM Level TLM, Centerline Rotors, 180/160mm
Fabric Scoop Flat Race w/ Titanium Rails
Seat Post
Cannondale SAVE Full Carbon, 20mm Offset, 27.2x400mm
Accessories & Extras
Tubeless Kit