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Light weight. Not a lightweight.
At just 900 grams (size Med, with all paint and hardware), the all-new F-Si is the lightest mountain bike frame Cannondale has ever made. It shaves 80 grams off the previous F-Si, and when you factor in the svelte new Lefty Ocho, you save a whopping 330 grams on the frame and fork (that's around 3/4 of a pound for you imperial folks). Pretty impressive.
What’s even more impressive is that, rather than chasing marketing grams, our engineers focused on features that deliver real performance benefits out on the course. Features like Ai and OutFront, or improved compliance, or improved durability. That’s what wins races, not saving the weight of a few sips of water. Lighten up right, with the all-new F-Si.
The all-new Lefty Ocho is the smoothest, stiffest ultra-light XC fork ever made. It floats through chop and steers through the choss like nothing else.
Silky smooth and unfazed no matter how hard you push it. Happy to get in as deep as you dare. Its extra-long fork offset pairs up with the F-Si’s new, slacker 69° head angle to create OutFront geometry, giving you extra stability to charge the downs, with full XC agility on the ups. Helping the F-Si track perfectly through whatever you throw it into.
Short chainstays do wonders for traction and nimble handling, but they usually come at a cost. Ya gotta give something to get something. Not so with Ai.
Ai is our proprietary Asymmetric Integration drivetrain offset. By moving the gears and rear triangle over, we create space (double what you get from Boost) that enables us to shorten the stays AND still have clearance for big tires and room for 2x drivetrains if you want. It even creates a stiffer, stronger rear wheel by evening out the dish. Smart, right?
- Tech Specs
Frame ALL-NEW F-Si, BallisTec Carbon, SAVE, PF30A, tapered head tube, Speed Release 12mm thru axle, Ai Offset Fork ALL-NEW Lefty Ocho, 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) Stem Cannondale C3, 3D Forged 6061 Alloy, 1-1/8", 31.8, 7-degree Handlebars Cannondale C3 Flat, 6061 double-butted Alloy, 8-degree sweep, 760mm Grips Cannondale Locking Grips Front Brake Shimano MT500 hydro disc, 160/160mm RT66 rotors Rear Brake Shimano MT500 hydro disc, 160/160mm RT66 rotors Brake Levers Shimano MT500 hydro disc Rear Derailleur SRAM 12-speed TBA Shifters SRAM 12-speed TBA Bottom Bracket Cannondale Alloy PressFit30 Cassette SRAM TBA, 10-50, 12-speed Chain SRAM 12-speed TBA Crankset Truvativ Stylo 6K, 34T, Ai Custom Front Wheel WTB STX i23 TCS, 28h, tubeless ready, Lefty 60 front Formula 12x148 rear w/ HG driver Rear Wheel WTB STX i23 TCS, 28h, tubeless ready, Formula 12x148 rear w/ HG driver Front Tyre Schwalbe Racing Ray Performance 29 x 2.25", Addix Compound, tubeless ready Rear Tyre Schwalbe Racing Ralph Performance 2.25", Addix Compound, tubeless ready Saddle Fabric Scoop Flat Elite, cro-mo rails Seatpost Cannondale C3, 7075 Alloy, 27.2 x 400mm
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UK orders are sent using Royal Mail Tracked 48, Royal Mail Recorded or Royal Mail letter post for small, light orders and Parcelforce for heavier, bulky orders. Please allow approx 2-3 days for delivery after the order has been despatched. Large and heavy items, e.g turbo trainers and work stands, will be sent by Parcelforce (UK Mainland only). Overseas orders are sent using Royal Mail International Signed For service and Royal Mail Airsure service (where permitting). Heavier items e.g. bicycles are sent using Parcelforce Worldwide. Delivery times will vary depending on destination, customs clearance, local postal service etc. Please allow up to 14 working days for delivery. Postage costs include Insurance for the value of the order. Bicycles sent within the UK are sent by Parcelforce 48 Hour Service.