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Cannondale F-Si HM Limited Edition Mountain Bike

★★★★★ ★★★★★

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Product ID: 1218271

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Product Highlights


Ultralight and buttery smooth, the single-sided design is the pinnacle of cross country suspension.


An offset design increases mud clearance, all whilst keeping the chainstays short and nimble.


Ultralight, stiff and ready to race, BallisTec Hi-Mod is Cannondale’s ultimate carbon technology.


Built in flex zones add compliance to reduce fatigue and enhance traction.

Cannondale F-Si HM Limited Edition Mountain Bike

The Cannondale F-Si HM Mountain Bike is light and agile yet stable, able to climb, descend and navigate fast technical singletrack with equal aplomb. The limited-edition colourway offers a sleek and stealthy aesthetic, and at the core is the BallisTec Hi-MOD carbon frame that's lightweight and durable. It's paired with a Lefty Ocho Carbon 100mm travel fork, and together they ensure a responsive, agile ride with bump-smoothing suspension. Further contributing to a comfortable ride are the SAVE Micro-suspension flex zones that will absorb shock and, consequently, minimise fatigue.

OutFront Steering Geometry is another key aspect, bringing stability when required but keeping the feel nimble and fast. An Ai (Asymmetric Integration) offset drivetrain with shorter chainstays not only improves traction but keeps clearance high for both wide tyres and mud.

Shimano's XTR components take care of both shifting and braking, with the 1x12-speed drivetrain giving you a gear for every scenario - be that when climbing, descending or sprinting. Hydraulic brakes are confidence-inspiring in their power and modulation, no matter if it's dry and dusty or wet and muddy. Within the 29" wheels there's a Cannondale Wheel Sensor that records your ride data with incredible accuracy. Link it to the Cannondale App to sync rides, view stats and gain access to other information.


  • BallisTec Hi-MOD carbon: Cannondale's premium high-strength, high-stiffness carbon construction. An advanced blend of intermediate, high, and ultra-high-modulus fibres yields a frame that’s extremely light, durable, and lively
  • SAVE Micro-suspension: Flex zones and directional carbon layup allow the rear triangle and seat tube to absorb shock for better traction, higher speeds and minimised fatigue, whether seated or standing
  • Speed release thru-axles: The slotted dropout design lets the axle stay in the hub for quicker, easier wheel changes. Compatible with standard 148x12 thru-axle hubs
  • Proprietary Ai (Asymmetric Integration) offset drivetrain delivers super short chainstays for climb-winning traction and agile handling, without sacrificing mud/tyre clearance or limiting you to single ring set-ups
  • Confidently stable on hectic descents, yet quick and nimble everywhere else - OutFront Steering Geometry gives you the best of both worlds
  • Cannondale Wheel Sensor: Delivers accurate speed, route and distance info, registers your bike, reminds you of needed service and more, all through the free Cannondale App
  • Shimano XTR drivetrain and hydraulic disc brakes

Technical Specification

Frame Cannondale all-new, F-Si, BallisTec Carbon, SAVE, PF30A, tapered head tube, Speed Release 12mm thru-axle, Ai Offset
Fork Cannondale all-new Lefty Ocho Carbon, 29", 100mm, Chamber Damper with cable lockout, OppO Spring System, tapered steerer, 55mm offset
Headset Integrated, 1-1/8 to 1.5", sealed angular contact bearings (Integrated steer stop size small only)
Bottom Bracket Cannondale Alloy PressFit30
Stem Cannondale C1, 7075 Alloy, 1-1/8", 31.8, 7°
Handlebar Cannondale C1 Flat, Carbon, 8-degree sweep, 760mm
Grips Cannondale Locking Grips
Front Brake Shimano XTR Race, hydraulic disc 160mm Ice Tech rotor
Rear Brake Shimano XTR Race, hydraulic disc 160mm Ice Tech rotor
Brake Levers Shimano XTR Race hydraulic disc, carbon lever
Front Derailleur N/A
Rear Derailleur Shimano XTR, Shadow Plus, 12-speed
Shift Levers Shimano XTR, 12-speed
Cassette Shimano XTR, 10-51, 12-speed
Crankset Cannondale HollowGram Si, BB30 w/X-Sync© SpideRing, 34T
Chain Shimano XTR, 12-speed
Front Wheel Cannondale Lefty 60 hub / Stan's NoTubes Crest S1, 32h, tubeless-ready rim / HollowGram, double-butted straight pull spokes
Rear Wheel Cannondale HollowGram 148x12 hub with DT Swiss internals / Stan's NoTubes Crest S1, 32h, tubeless-ready rim / HollowGram, double-butted straight pull (Ai Offset dish) spokes
Front Tyre Schwalbe Racing Ray 29 x 2.25", tubeless-ready clincher
Rear Tyre Schwalbe Racing Ralph 2.25", Snake Skin, Addix Speedgrip compound, tubeless-ready clincher
Saddle Fabric Scoop Flat Race, titanium rails
Seatpost Cannondale C1 full carbon, 27.2 x 350/400mm
Pedals Available to be purchased separately

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 HM Limited Edition Mountain Bike Sizing

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