Why buy your bike from Sigma Sports?
Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.
Save up to 47% with any one of our 11 Cycle to Work partners, and get the health benefits of a new bike in exchange for tax free salary sacrifice. To find out more about our various partners and how to apply click here.
Choose between Free Bike Delivery - to your home or place of work - or our new Premier Bike Delivery Service £99.99 and have your bike delivered "ready to ride" and set up to your measurements with seatpost and pedals adjusted on arrival by a qualified bike mechanic. Either way, our Customer Care team will be in touch to arrange a delivery date to suit you.
We've partnered with Laka to offer you 30 days free bike Insurance on your new bike purchase over £400. Click here for more info and find out how to claim.
Cannondale F-Si Carbon 3 29R Mountain Bike 2017
The Cannondale F-Si Carbon 3 Mountain Bike 2017 offers exactly what we all look for in our off-road riding experiences - speed, fun, durability and performance. Cannondale's Ai (Asymmetrically Integrated) Drivetrain System has allowed them to create a bike with super-short chainstays for added traction, handling and stiffness, without any of the normal compromises in clearance and sluggish handling.
Cannondale's premium BallisTec Hi-MOD Carbon frame construction allows the bike to not only be light but also ultra-stiff, strong and responsive. For the fork, Cannondale has employed their iconic Lefty 2.0 fork, which offers 100mm of travel and its XLoc lockout allows you to put the power down when you need to.
Shimano - the go-to name for gearing - provide smooth shifting in the form of their XT groupset. This high-quality mechanical groupset combines a 26/36 crankset with an 11-42 cassette for a massive gearing range.
Making the most of your time on the trail requires full confidence in your brakes so the use of Magura's MT-RACE hydraulic disc brakes with Storm SL will be welcomed by those looking to push their riding to the limits.
Stan's NoTubes ZTR Crest wheels offer tubeless ready versatility, strength and a low rolling weight. They are combined here with the Schwalbe Racing Ralph EVO Performance tyres for high levels of traction and puncture resistance.
FEATURES
- Cannondale's premium BallisTec Hi-MOD Carbon frame construction optimises low weight and stiffness while also featuring a geometry that is ready to tackle the toughest XC courses
- Tubeless Ready wheels offer versatility
- The iconic Lefty 2.0 fork with 100mm of travel, keeps you comfortable over the rough stuff and big drops
- Shimano's XT shifting is reliable and responsive
Image shown for representation of colourway only, specification subject to change at any time. Bicycles do not come with pedals unless otherwise specified.
Technical Specification
FRAME | Cannondale F-Si Asymmetric BallisTec Hi-MOD Carbon SPEED SAVE PF30A 1.5 Si Head Tube |
FORK | Cannondale Lefty 2.0 100mm PBR Isolated Damper Technology with XC+ tune and updated controls Offset - 50mm (S) 55mm (M-X) |
HEADSET | Cannondale HeadShok Si |
STEM | Cannondale C1 6061 Alloy 1.5 31.8 -5 deg. |
HANDLEBAR | Cannondale C2 flat 2014 double-butted alloy 700mm |
FRONT BRAKE | Magura MT-RACE w/ Storm SL Rotors 180/160mm |
REAR BRAKE | Magura MT-RACE w/ Storm SL Rotors 180/160mm |
FRONT DERAILLEUR | Shimano XT direct mount |
REAR DERAILLEUR | Shimano XT Shadow Plus 11-speed |
SHIFT LEVERS | Shimano XT 2x11-speed |
CHAIN | Shimano CN-HG601 11-speed |
CRANKSET | Cannondale Si Ai BB30 FSA 26/36 rings |
CASSETTE | Shimano SLX 11-42 11-speed |
BOTTOM BRACKET | Cannondale Alloy PressFit30 |
PEDALS | None |
RIMS | Stan's NoTubes ZTR Crest 23mm inner Tubeless Ready |
HUBS | Cannondale Lefty 60 front Custom Formula 1702 rear (Ai Offset dish - Rear) |
FRONT TYRE | Schwalbe Racing Ralph EVO Performance 29x2.25 tubeless ready, clincher |
REAR TYRE | Schwalbe Racing Ralph EVO Performance 29x2.25 tubeless ready, clincher |
SADDLE | Prologo Zero II STN Rail |
SEATPOST | Cannondale C2 7075 alloy 27.2mm x 400mm |
Built, Checked, Tuned and Tested
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.
Unable to display Reviews due to Privacy Settings.
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".
Unable to display Q&A due to Privacy Settings.
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".