Cannondale SystemSix Carbon Ultegra 2021 - Road Bike

Cannondale SystemSix Carbon Ultegra 2021 - Road Bike

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Product Description

Faster. Everywhere.

The fastest UCI-legal bike in the world. More speed with less effort. Simple as that.

Key Features:

  • System Integrated Design

The frame, fork and seatpost of the SystemSix were designed together holistically to minimize drag and optimize stiffness for maximum speed.

  • Customized Airfoils

Every section of the frame, fork and seatpost features it own customized truncated airfoil shape, designed to reduce drag across the effective yaw range.

  • HollowGram 60 KNØT Seatpost

An vital part of the system, the KNØT seatpost is designed specifically to reduce drag in the high speed airflow that is accelerated between the rider’s legs.

  • Hidden Cable Routing

Unique design routes brake lines and cables through an opening in the front of the headtube for minimal drag and headache-free serviceability.

  • Connected

An integrated wheel sensor delivers hyper accurate speed, route and distance info, registers your bike, reminds you of needed service and more, all through the free Cannondale App.

  • Speed Release Equipped

The Speed Release thru-axles allow faster, easier wheel changes and are compatible with most standard thru-axle wheelsets.

  • BallisTec Carbon

Cannondale's proprietary high-strength, high-stiffness carbon construction. An advanced matrix of intermediate modulus fibers creates a frame that's light, durable and lively.


Occasionally, without notice, manufacturers change product design and/or specifications.


Frame:BallisTec Carbon, integrated cable routing w/ Switchplate, SAVE, PF30a, flat mount disc, 12x142 Speed Release thru-axle
Fork:BallisTec Carbon, 1-1/8" - 1-1/4" steerer, 12x100mm Speed Release thru-axle, flat mount disc, 55mm offset (47-51cm) 45mm offset (54-62cm)
Headset:Integrated, 1-1/8" - 1-1/4
Stem:HollowGram KNØT, Alloy w/ cable cover, -17°
Bars:HollowGram KNØT SystemBar, Carbon, 8 deg. pitch adjust
Front Brake:Shimano Ultegra hydraulic disc, 160mm RT800 rotors
Rear Brake:Shimano Ultegra hydraulic disc, 140mm RT800 rotors
Brake Lever:Shimano Ultegra
Front Mech:Shimano Ultegra, braze-on
Rear Mech:Shimano Ultegra
Shifters:Shimano Ultegra, 11-speed
Rims:Vision SC55, carbon clincher disc, tubeless ready
Front Hub:Vision Sealed Cartridge hub 12x100mm
Rear Hub:Vision Sealed Cartridge hub, 12x142mm
Spokes:DP Spokes - 21F / 24R
Front Tyre:Vittoria Rubino Pro Bright Black, 700 x 25c, reflective strip
Rear Tyre:Vittoria Rubino Pro Bright Black, 700 x 25c, reflective strip
Seat Post:HollowGram 60 KNØT Carbon, 330mm
Saddle:Prologo Dimension STN NDR, steel rails
Chainset:HollowGram, BB30a, OPI SpideRing, 52/36
Bottom Bracket:Cannondale Alloy PressFit30
Chain:Shimano HG601, 11-speed
Cassette:Shimano 105, 11-30, 11-speed