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 1 Carbon Hi-Mod Mountain Bike 2018
The Cannondale F-Si 1 Carbon Hi-Mod Mountain Bike 2018 packs an XC punch thanks to its top-level components and the attention to detail that Cannondale has shown in honing this bike's versatile geometry.
Cannondale's Ai, their Asymmetrically Integrated Drivetrain System, allows them to create bikes with ultra-short chainstays for traction, handling and stiffness, without any of the usual compromises in clearance or limited chainring options. The frame itself is constructed from BallisTec Hi-MOD Carbon, making it ultra-stiff, strong and responsive. For the fork, Cannondale has employed their iconic Lefty 2.0 Carbon fork, which offers 100mm of travel and its XLoc lockout allows you to put the power down when you need to.
XC riding at the highest level requires the most responsive shifting that money can buy and that is exactly what Shimano's XTR Di2 11-speed groupset provides. Electronic shifting provides hair-trigger shifting and self-trimming gearing, ensuring you always find the ideal gear.
Shimano also provides the brakes in the form of their XT hydraulic disc brakes. To truly feel at one with your bike, you need confidence-inspiring stopping power. The XT disc brakes provide just this, while the Ice Tech rotors gift greater heat dissipation, which reduces brake fade on especially long and rigorous descents.
Cannondale's CZero carbon wheels integrate perfectly with the Lefty suspension. Their 29R size provides fast rolling and stable riding and their low weight adds a feeling of agility - making them a superb XC wheelset. Combined here with the Schwalbe Racing Ralph EVO Snakeskin tyres, these wheels ensure traction, speed and puncture protection across an extensive range of terrain.
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 to toughest XC courses
- Light, fast and agile CZero SL Carbon wheels embody XC performance
- The iconic Lefty 2.0 Carbon fork with 100mm of travel, keeps you comfortable over the rough stuff and big drops
- Shimano's XT Di2 electronic shifting will revolutionise the way you approach your XC riding for the better
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 Carbon 100mm XLR Isolated Damper Technology with XC+ tune and XLoc remote Offset - 50mm (S) 55mm (M-X) |
| HEADSET | Cannondale HeadShok Si |
| STEM | Cannondale C1 6061 Alloy 1.5 31.8 -5 deg. |
| HANDLEBAR | Cannondale CZero flat Carbon 760mm |
| FRONT BRAKE | Shimano XT 160/160mm Ice Tech Rotors |
| REAR BRAKE | Shimano XT 160/160mm Ice Tech Rotors |
| FRONT DERAILLEUR | NA |
| REAR DERAILLEUR | Shimano XTR Di2 11-speed |
| SHIFT LEVERS | Shimano XT Di2 11-speed |
| CHAIN | Shimano CN-HG601 11-speed |
| CRANKSET | Cannondale HollowGram Si Ai BB30 SpideRing 32T |
| CASSETTE | Shimano XT 11-42 11-speedd |
| BOTTOM BRACKET | Cannondale Alloy PressFit30 |
| PEDALS | None |
| RIMS | Cannondale CZero SL Superlight Hi-Impact Carbon Tubeless Ready 28hole 23mm ID Ai Offset Rear |
| HUBS | CZero Straight Pull Lefty 60 front 39-point engagement rear 28h (Ai Offset dish - Rear) |
| FRONT TYRE | Schwalbe Racing Ralph EVO Snakeskin 29x2.25 folding tubeless ready, clincher |
| REAR TYRE | Schwalbe Racing Ralph EVO Snakeskin 29x2.25 folding tubeless ready, clincher |
| SADDLE | Prologo Zero II TiRox Rail |
| SEATPOST | Cannondale F-Si SAVE Carbon 27.2x400mm |
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.
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