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Cannondale F-Si Carbon 5 29er Mountain Bike 2018 - Hardtail MTB

Trade in your old bike and get up to £390 towards a new one.

Re-Cycle Bikes to Africa

Out with the old and in with the new - Help others in Africa by donating your old bike to one of the hundreds of drop-off points around the UK. It's quick and easy and you'll get up to £390 off a shiny new bike.

Buy a new bike today and save up to £390 - Hundreds of drop-off points around the UK Buy a new bike today and save up to £390 - Hundreds of drop-off points around the UK
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Now £1,399.99
Save up to £400.00 RRP: £1,799.99
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  • Product Information
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  • MTB Sizing
  • MTB Hardtail Guide
  • 0% APR Finance
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  • What's In The Box
  • Product Description

    Discover your true potential. The Cannondale F-Si Carbon 5 29er mountain bike is an XC race machine with victory in its veins. Built around a BallisTec carbon frame, with Speed SAVE micro-suspension and an Ai (Asymmetric Integration) rear triangle, the F-Si is both incredibly lightweight and agile, without sacrificing an ounce of strength. In fact, the Ai system allows the F-Si hardtail MTB to boast as much as 60% increased stiffness at the rear wheel, and the shortest chainstays in its class. Add to that the smooth-rolling 29er wheels, 100mm travel fork, and wide-range gears, the result is a cross-country race bike with incredible trail manners and unrelenting traction in the climbs, with handling that lets you overcome any obstacle on the descents.

    Also available with a 27.5” wheel in the Small frame size, check out the Cannondale F-Si 27.5” hardtail mountain bike.

    Key Features:

    • BallisTec carbon fibre frame, with Speed SAVE micro-suspension and Asymmetric Integration
    • RockShox Reba RL 100mm travel fork to smooth out the rough stuff
    • Shimano SLX/XT 2x11 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: Acid Red/Jet Black Gloss
    • The Cannondale F-Si Carbon 5 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 £99
    • 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)


    Frame:F-Si, BallisTec Carbon, SPEED SAVE, PF30A, 1.5 Si Head Tube, Ai Offset, 27.5" (S), 29" (M-XL)
    Fork:RockShox Reba RL, 100mm, Solo Air, Tapered Steerer, Maxle Lite, 51mm offset
    Headset:Cannondale HeadShok Si
    Stem:Cannondale C3, 6061 Alloy, 1.5", 31.8, -5°
    Bars:Cannondale C3 flat, 6061 double-butted Alloy, 760mm
    Front Brake:Shimano Deore MT-500 hydro disc, 180mm (S-160/160mm)
    Rear Brake:Shimano Deore MT-500 hydro disc, 160mm
    Brake Lever:Shimano Deore MT-500 hydro disc
    Front Mech:Shimano SLX, direct mount
    Rear Mech:Shimano XT, 11-speed Shadow Plus
    Shifters:Shimano SLX , 2x11-speed
    Rims:WTB STP i19, Tubeless Ready
    Front Hub:Formula DC51
    Rear Hub:Formula DC-1422 Ai Offset dish
    Spokes:DT Swiss Competition (Ai Offset dish - Rear)
    Front Tyre:Schwalbe Racing Ralph Performance 29x2.25"
    Rear Tyre:Schwalbe Racing Ralph Performance 29x2.25"
    Seat Post:Cannondale C3, 6061 alloy, 27.2x350mm (S,M) 400mm (L,X)
    Chainset:Cannondale Si, Ai, BB30, FSA 26/36 rings
    Bottom Bracket:Cannondale Alloy PressFit30
    Chain:KMC X11, 11-speed
    Cassette:SunRace, 11-42, 11-speed
    Pedals:Not Included

    Occasionally without notice, manufacturers sometimes change product specifications.

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