"The F-Si is the best high velocity hardtail we've ever ridden, by a cross-country mile" - What Mountain Bike
A hardtail like no other. Designed to let you out-kick them on the climbs and out-rip them on the descents, this ultralight rocket is your ticket to the top of the podium. Ideal for World Cup XC racers and anyone else with dreams of fast-paced XC glory.
BALLISTEC CARBON FRAME
BallisTec is Cannondale's proprietary method of high-strength, high-stiffness carbon construction. It is the ideal blend of the most advanced materials in the world combined with the most advanced carbon engineering and design. The results speak for themselves.
ASYMMETRIC INTEGRATION
Ai, a Asymmetrically Integrated Drivetrain System creates bikes with ultra-short chainstays for traction, handling and stiffness, without any of the usual compromises in clearance or limited chainring options. And as a nice bonus, it creates a stiffer, stronger rear wheel as well.
SYSTEM INTEGRATION
Cannondale pride themselves in making the most kick-ass, cutting edge frames in cycling. But you don’t race a frame, you race a complete bike. It seems like common sense, but Cannondale stand alone in the industry with their System Integration approach to bike design. Cannondale Si approach incorporates our cutting edge frame design with custom designed Cannondale forks, suspension and drivetrain components. This unique complete-bike design and build approach ultimately delivers the best performing bikes possible.
SPEED SAVE
Race‐oriented SAVE features. Much like the suspension on F1 cars, SPEED SAVE features are engineered to help the bike roll faster, not simply to make it more comfortable. Emphasising light weight and torsional rigidity, SPEED SAVE delivers improved rolling speed, better acceleration, and dramatically improved cornering speed without negatively affecting power transfer.