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.
All our bikes are fully built by our Cytech qualified mechanics. To find out more, see the Built, Checked, Tuned and Tested section below to see how we'll deliver your bike.
We offer FREE DELIVERY of your bike to your home or place of work. Once you've placed your order, our Customer Care team will be in contact to offer a convenient delivery date of your choice.
We've partnered with PedalSure to offer you 30-DAYS FREE bike insurance on new bikes over £400. Visit our Cycle Insurance page to learn more and claim.
Cannondale F-Si Carbon 2 29" Mountain Bike 2020
Designed for the intensity of XC racing, the F-Si Carbon 2 29" Mountain Bike from Cannondale is stiff, light and responsive and thanks to the Asymmetric Integration drivetrain has traction and acceleration on tap for aggressive climbing and hard sprints. A Shimano 12-speed XT drivetrain, that includes an XTR Shadow Plus rear derailleur, delivers sharp gear shifting that can handle the stresses of a tight chain and the frequent need to find the right power and cadence.
The unique layup of the SAVE carbon stays delivers comfort and compliance to the back of the bike, with snappy obedience for the tight and technical sections, whilst at the front the Lefty Ocho fork with 100mm of travel is light and smooth. Stiffness and power transfer are further enhanced by the HollowGram Superlight Hi-Impact carbon wheelset and there's a wheel sensor included that delivers all your key ride stats.
- Lefty Ocho, 29", 100mm, Chamber Damper with cable lockout
- Asymmetric Integration drivetrain for podium-level traction and clearance
- Proprietary BallisTec carbon is custom-tuned for rigidity, compliance and weight-saving
- Flat mount disc brake
- Tapered head tube
- Cannondale carbon handlebar
- Clean, configurable internal cable routing
- SAVE stays feature optimised carbon layup for superior comfort and control
- Integrated seat collar for a sleeker look and improved comfort
- Speed Release rear axle
- Cannondale Wheel Sensor
|FRAME||Cannondale BallisTec Carbon, SAVE, PF30-83, tapered head tube, Speed Release 12mm thru-axle, Ai Offset|
|FORK||Lefty Ocho, 29", 100mm, Chamber Damper with cable lockout, OppO Spring System, tapered steerer, 55mm offset|
|HANDLEBAR||Cannondale 1 Flat, Carbon, 31.8mm, 9° backsweep, 760mm|
|GRIPS||Cannondale Locking Grips|
|STEM||Cannondale 1, 7075 Alloy, 1-1/8", 31.8, 7°|
|FRONT BRAKE||Shimano Deore XT Race disc, 160mm XT rotors|
|REAR BRAKE||Shimano Deore XT Race disc, 160mm XT rotors|
|BRAKE LEVERS||Shimano Deore XT Race hydro disc|
|REAR DERAILLEUR||Shimano XTR, Shadow Plus|
|SHIFT LEVERS||Shimano XT, 12-speed|
|CASSETTE||Shimano XT, 10-51, 12-speed|
|CRANKSET||HollowGram, BB30 w/X-Sync® SpideRing, 34T, Ai offset|
|CHAIN||Shimano XT, 12-speed|
|FRONT WHEEL||HollowGram 23, Superlight Hi-Impact Carbon, tubeless-ready, 28h, 23mm inner width, Lefty 60|
|REAR WHEEL||HollowGram 23, Superlight Hi-Impact Carbon, tubeless-ready, 28h, 23mm inner width, Hollowgram with DT internals 12x148 with Micro Spline|
|FRONT TYRE||Schwalbe Racing Ray 29 x 2.25", Snake Skin, Addix Speedgrip Compound, tubeless-ready|
|REAR TYRE||Schwalbe Racing Ralph 29 x 2.25", Snake Skin, Addix Speed Compound, tubeless-ready|
|SADDLE||Fabric Scoop Flat Race, titanium rails|
|SEATPOST||Cannondale 2, 7075 Alloy, 31.6 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 specified), 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.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. We do not install accessories to bikes, including mudguards.