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 5 29" Mountain Bike 2020
The hardtail Cannondale F-Si Carbon 5 29" Mountain Bike is lightweight, responsive and a master of all trades, climbing, descending and sprinting with equal aplomb. The Asymmetric Integration (Ai) drivetrain has stacks of clearance and trail-shredding traction so that power and efficiency are optimised for easier climbing. Furthermore, the SAVE stays have a unique carbon layup that delivers superior control and comfort by reducing the impact of vibrations and trail buzz. The overall look is clean and sleek with an integrated seat collar and configurable internal cable routing.
SRAM offer up a combination of their SX and NX Eagle drivetrain components and the 1X chainring with 12-speed 11-50t cassette has plenty of range for conquering even the toughest XC courses. The 29" WTB wheels are great at holding speed and work well with the RockShox Reba RL fork with 100mm of travel.
Features
- 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
- 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
Technical Specification
| FRAME | Cannondale BallisTec Carbon, SAVE, PF30-83, tapered head tube, Speed Release 12mm thru-axle, Ai Offset |
| FORK | RockShox Reba RL, 100mm, Stealth Solo Air, 15x110, tapered steerer, 51 offset |
| HANDLEBAR | Cannondale 3 Flat, 6061 double-butted Alloy, 31.8mm, 3deg rise, 8deg sweep, 760mm |
| GRIPS | Cannondale Locking Grips |
| STEM | Cannondale 3, 6061 Alloy, 31.8, 7deg |
| FRONT BRAKE | Shimano MT500 hydraulic disc, 160mm RT56 rotors |
| REAR BRAKE | Shimano MT500 hydraulic disc, 160mm RT56 rotors |
| BRAKE LEVERS | Shimano MT500 hydraulic disc |
| REAR DERAILLEUR | SRAM NX Eagle |
| SHIFT LEVERS | SRAM NX Eagle, 12-speed |
| CASSETTE | SRAM PG-1210, SX Eagle, 11-50, 12-speed |
| CRANKSET | Truvativ Stylo 6K DUB, 34T, Ai offset |
| CHAIN | SRAM SX Eagle, 12-speed |
| FRONT WHEEL | WTB STX i21 TCS, 28h, tubeless ready, Formula 15x110 |
| REAR WHEEL | WTB STX i21 TCS, 28h, tubeless ready, Formula 12x148 with HG driver |
| FRONT TYRE | Schwalbe Racing Ray Performance 29 x 2.25", Addix Compound, tubeless-ready |
| REAR TYRE | Schwalbe Racing Ralph Performance 29 x 2.25" rear, Addix compound, tubeless-ready |
| SADDLE | Fabric Scoop Shallow Sport, steel rails |
| SEATPOST | Cannondale 3, 6061 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 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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