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 HiMod 1 Mountain Bike 2021
The Cannondale F-Si HiMod 1 Mountain Bike is a top-tier XC steed crafted with a featherweight frame that's just 900 grams, making it Cannondale's lightest frame to date. Lightweight doesn't mean compromising other areas though, with the F-Si HiMod remaining compliant and agile as a result of the Ai Offset drivetrain and OutFront steering geometry, which makes for nimble handling and confident stability. Stiffness is enhanced with the addition of thru-axles, so power transfer is efficient for rapid climbs and putting the hammer down in a sprint.
The Lefty Ocho fork provides 100mm of travel to rumble over rugged surfaces smoothly, keeping handling precise and weight low. Premium Shimano XTR and XT 12-speed components make for snappy shifting that clicks through the wide range of gears with rapid accuracy, and Shimano XTR hydraulic disc brakes keep speed manageable, offering sure stopping power come rain or shine.
- Asymmetric Integration drivetrain for podium-level traction and clearance
- Proprietary BallisTec carbon is custom-tuned for rigidity, compliance and weight-saving
- Premium Shimano XTR hydraulic disc brakes
- Tapered head tube
- Cannondale Lefty Ocho Carbon 100mm fork
- Clean, configurable internal cable routing
- Speed Release rear axle
- The integrated wheel sensor delivers hyper-accurate speed, route and distance info, registers your bike, reminds you of needed servicing and more, all through the free Cannondale App
|Frame||Cannondale BallisTec Hi-Mod Carbon, SAVE, PF30-83, tapered head tube, Speed Release 12mm thru axle, Ai Offset|
|Fork||Cannondale Lefty Ocho Carbon, 100mm, Chamber Damper with remote lockout, OppO Spring System, tapered steerer, 55mm offset|
|Headset||Cannondale Integrated, 1-1/8 to 1.5”, sealed angular contact bearings (Integrated steer stop size small only)|
|Bottom Bracket||Cannondale Alloy PressFit30|
|Stem||Cannondale 1, 7075 Alloy, 1-1/8”, 31.8, 7°|
|Handlebar||Cannondale 1 Flat, Carbon, 31.8mm, 9° back, 760mm|
|Grips||ESI Chunky Silicone, 32mm diameter|
|Front Brake||Shimano XTR hydraulic disc, 160/160mm Ice Tech rotors|
|Rear Brake||Shimano XTR hydraulic disc, 160/160mm Ice Tech rotors|
|Brake Levers||Shimano XTR hydraulic disc|
|Rear Derailleur||Shimano XTR|
|Shift Levers||Shimano XTR, 12-speed|
|Chain||Shimano XT, 12-speed|
|Cassette||Shimano XT, 10-51, 12-speed|
|Crankset||Cannondale HollowGram, BB30a, OPI SpideRing, 34T, Ai Offset|
|Front Wheel||Cannondale HollowGram Lefty 60 hub, HollowGram 25, Superlight Hi-Impact Carbon, 28h, 25mm IW, tubeless ready rim, DT Swiss Competition Race, straight-pull spokes|
|Rear Wheel||Cannondale HollowGram with DT Swiss Star Ratchet internals, 12x148mm hub, HollowGram 25, Superlight Hi-Impact Carbon, 28h, 25mm IW, tubeless ready rim, DT Swiss Competition Race, straight-pull spokes|
|Front Tyre||Schwalbe Racing Ray EVO, 29 x 2.25”, SnakeSkin, Addix Speedgrip, tubeless ready clincher|
|Rear Tyre||Schwalbe Racing Ralph EVO, 29 x 2.25”, SnakeSkin, Addix Speed, tubeless ready clincher|
|Saddle||Prologo Dimension NDR, Tirox rails|
|Seatpost||ENVE Carbon, 27.2 x 400mm, 0mm offset|
|Pedals||(if not included, copy/paste “Available to be purchased separately”)|
|Accessories||Cannondale wheel sensor|
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.
Cannondale F-Si HiMod 1 Mountain Bike 2021 Sizing
Forgotten Your Password?
Please enter your registered email address below and we'll send you an email explaining the next step.
Select a store
Select the store you visit most frequently below and their stock information will show on product pages.