Cannondale F-Si Carbon 4 29er Mountain Bike 2018 – Hardtail MTB



Don’t be fooled by its unassumingly simple appearance – the Cannondale F-Si Carbon 4 29er hardtail mountain bike is every bit the tech-packed XC race bike. Using Cannondale’s own BallisTec carbon fibre, with in-built Speed SAVE micro-suspension, the F-Si MTB boasts an incredibly lightweight, stiff, strong, and surprisingly comfortable frame. Cannondale’s famous single-sided Lefty fork comes complete with 100mm of travel and PBR isolated damper technology with an XC+ tune, giving it impeccable poise and control over rough ground. Talking of rough ground, the 29er wheels help smooth out the trail with their reduced rolling resistance. Coupled with the 2×11 speed gears, super-stiff Asymmetric Integration rear triangle, and the shortest-in-class chainstays, and you’ve got a bike that could lead you to your next race win.

For shorter riders who prefer a 27.5” wheel, there’s also the Cannondale F-Si Carbon 4 27.5” hardtail mountain bike, available in a Small frame size.

Key Features:

  • BallisTec carbon fibre frame, with Speed SAVE micro-suspension and Asymmetric Integration
  • Cannondale Lefty 2.0 100mm fork, with 2spring and PBR Isolated Damper technology, tuned for XC racing
  • Shimano SLX/XT 2×11 speed gears give you an incredible range for climbing and descending
  • Shimano Deore MT500 hydraulic discs with 180mm rotors deliver ample stopping power for any trail
  • Sizes: Medium, Large, X Large
  • Colour: Jet Black/Neon Spring Gloss
  • The Cannondale F-Si Carbon 4 29er hardtail mountain bike is available with 0% APR finance


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.

All Tredz bikes are:

  • Fully built & ready to ride
  • Fully checked & tested by Cytech qualified mechanics
  • Available with 0% APR finance (up to 48 months) on any basket over £250
  • UK price match guarantee
  • 365 day no hassle returns
  • Free delivery in the UK Mainland on a date that suits you

In the box with every Tredz bike is:

  • Free Tredz 9 key trail tool
  • Free Tredz pedal spanner
  • Free basic pedals
  • Tredz drawstring kit bag
  • 16-point quality control check sheet
  • Basic bike setup instructions
  • Free Cycle Plan insurance voucher (8 weeks)

The Cannondale F-Si Carbon 4 29er 2018 Features are:

Frame: F-Si Asymmetric, BallisTec Carbon, SPEED SAVE, PF30A, 1.5 Si Head Tube, 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)

Headset: Cannondale HeadShok Si

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

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

Shifters: Shimano SLX , 2×11

Front Mech: Shimano SLX, direct mount

Rear Mech: Shimano XT, Shadow Plus, 11-speed

Speed: 22

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

Bottom Bracket: Cannondale Alloy PressFit30

Chain: KMC X11, 11-speed

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

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

Rims: WTB STP i19 Tubless Ready

Front Hub: Lefty 60 front

Rear Hub: Formula DC-1422 rear (Ai Offset dish – Rear)

Tyres: Schwalbe Racing Ralph Performance 29/27.5×2.1″, tubeless ready Front – Schwalbe Racing Ralph Performance 29/27.5×2.1″, tubeless ready Rear

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

Pedals: Not Included

SKU: N/A Category:

S, M, L, XL, XXL


Jet Black/Neon Spring Gloss