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 Hi-Mod World Cup Replica 29" Mountain Bike 2019
Sitting squarely on top of Cannondale’s hardtail XC race range, the F-Si Hi-Mod World Cup Replica 29" Mountain Bike features a mouthwatering range of components and features. The Lefty Ocho carbon fork provides 100mm of travel but can be locked out remotely for smoother sections, and the Hi-MOD BallisTec carbon frame is both incredibly light and very stiff, maximising power transfer. The AI (Asymmetric Integration) system moves the drivetrain outwards by 6mm in order to be able to shorten the chainstays (for better power and traction) and still have plenty of space for big tyres.
SRAM’s Eagle X01 12-speed groupset uses a single 34 tooth ring at the front coupled with a 10-50 tooth titanium nitride treated cassette to give a massive range of gears suitable for any race or route. The SRAM Level Ultimate hydraulic disc brakes use two 21mm pistons per caliper to provide the stopping power, whilst the levers are customisable to enable the required bite point to be dialled in thanks to Contact Point Adjust. Fast rolling Schwalbe Racing Ray and Ralph tyres are wrapped around the tubeless ready ENVE M525 carbon rims in a package which is both lightweight and also optimised for maximum speed and efficiency across the ground.
Features
- Cannondale Hi-MOD BallisTec carbon frame
- Cannondale Lefty Ocho carbon fork with 100mm travel and cable lockout
- SRAM X01 Eagle 12-speed drivetrain
- SRAM Level Ultimate hydraulic disc brakes
- ENVE carbon rims
Technical Specification
| FRAME | Cannondale F-Si, Hi-MOD BallisTec Carbon, SAVE, PF30A, tapered head tube, Speed Release 12mm thru axle, Ai Offset |
| FORK | Cannondale Lefty Ocho Carbon, 29", 100mm, Chamber Damper with cable lockout, OppO Spring System, tapered steerer, 55mm offset |
| STEM | Cannondale C1, 7075 Alloy, 1-1/8", 31.8, 7° |
| HANDLEBAR | Cannondale C1 Flat, Carbon, 8° sweep, 760mm |
| FRONT BRAKE | SRAM Level Ultimate hydraulic disc, 160mm Centerline rotors |
| REAR BRAKE | SRAM Level Ultimate hydraulic disc, 160mm Centerline rotors |
| BRAKE LEVERS | SRAM Level Ultimate hydraulic disc |
| FRONT DERAILLEUR | N/A |
| REAR DERAILLEUR | SRAM XX1 Eagle |
| SHIFT LEVERS | SRAM XX1 Eagle, 12-speed |
| CASSETTE | SRAM XG-1295, X01 Eagle, 10-50t, 12-speed |
| CRANKSET | SRAM XX1 Carbon, 34t, Ai Custom |
| FRONT WHEEL | Cannondale Lefty 60 front, ENVE M525 Carbon, 24h, tubeless ready, DT Swiss Aerolite spokes |
| REAR WHEEL | DT Swiss C36 12x148 rear with XD driver, ENVE M525 Carbon, 24h, tubeless ready, DT Swiss Aerolite spokes |
| FRONT TYRE | Schwalbe Racing Ray 29 x 2.25", Snake Skin, Addix Speedgrip Compound, tubeless ready clincher |
| REAR TYRE | Racing Ralph 2.25" rear, Snake Skin, Addix Speedgrip Compound, tubeless ready clincher |
| SADDLE | Prologo Zero II, Tirox rails |
| SEATPOST | Cannondale C1 Full Carbon, 27.2mm |
| CLAIMED WEIGHT | 8.4kg size medium |
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".