F-Si Carbon 4

BUILT FOR XXC

The ultimate race bike for the rough and tumble realities of modern XC. It’s the lightest, stiffest XC dually on the planet, with radical new XC geometry to own the climbs, rule the descents and decimate the competition.

TO SUM IT UP 

The lightest, stiffest, best climbing, descending, all-around fastest XC race bike ever made. The new XC gnarly. The new Scalpel-Si is gnarlier.

FRAME

F-Si, BallisTec Carbon, SPEED SAVE, PF30A, 1.5 Si Head Tube, Ai Offset, 27.5″ (S), 29″ (M-X)

FORK

Lefty 2.0, 100mm, PBR Isolated Damper Technology with XC+ tune and updated controls, Offset – 50mm (S), 55mm (M-X)

REAR SHOCK

N/A

RIMS

WTB STP i19 Tubeless Ready

HUBS

Lefty 60 front, Formula DC-1422 rear (Ai Offset dish – Rear)

SPOKES

DT Swiss Competition (Ai Offset dish – Rear)

TIRES

Schwalbe Racing Ralph Performance 29/27.5×2.1″, tubeless ready

PEDALS

N/A

CRANK

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

CRANK OPTION

N/A

BOTTOM BRACKET

Cannondale Alloy PressFit30

CHAIN

KMC X11, 11-speed

REAR COGS

SunRace, 11-40, 11-speed

FRONT DERAILLEUR

Shimano SLX, direct mount

REAR DERAILLEUR

Shimano XT, Shadow Plus, 11-speed

SHIFTERS

Shimano SLX , 2×11

HANDLEBAR

Cannondale C3 flat, 6061 double-butted alloy, 700mm

GRIPS

Cannondale Locking Grips

STEM

Cannondale C3, 6061 Alloy, 1.5″, 31.8, -5 deg.

HEADSET

Cannondale HeadShok Si

BRAKES

Shimano Deore hydraulic disc, 180/160mm (S-160/160mm)

BRAKE LEVERS

Shimano Deore

SADDLE

Prologo K3

SEATPOST

Cannondale C3, 6061 alloy, 27.2x350mm (XS,S,M) 400mm (L,X)

SIZES

XS, S (27.5″) M,L,XL (29″)

Features