Cannondale SystemSix Carbon Ultegra 2021 - Road Bike
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 |
| Speed | 22 |
| 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 |
Cannondale SystemSix 2021 Size Chart
| Size | Height (cm) | Height (Inches) |
| 47 | 160 - 170 | 5'3" - 5'7" |
| 51 | 165 - 175 | 5'5 - 5'9 |
| 54 | 170 - 180 | 5'7 - 5'11 |
| 56 | 177 - 187 | 5'10 - 6'2 |
| 58 | 182 - 193 | 6'0 - 6'4 |
| 60 | 187 - 198 | 6'2 - 6'6 |
| 62 | 195 - 205 | 6'5" - 6'9" |
Cannondale SystemSix 2021 Geometry
| 47 | 51 | 54 | 56 | 58 | 60 | 62 | |
| Seat Tube Length (cm) | 38.5 | 43.3 | 48.2 | 53.0 | 55.3 | 57.7 | 60.0 |
| Top Tube Horizontal (cm) | 51.4 | 52.9 | 54.4 | 56 | 57.6 | 59.2 | 60.9 |
| Head Tube Angle | 71.2° | 71.2° | 73.0° | 73.0° | 73.0° | 72.9° | 72.9° |
| Seat Tube Angle | 75.1° | 74.7° | 74.3° | 73.9° | 73.5° | 73.1° | 72.7° |
| Seat Tube Angle Effective | 74.5° | 74.1° | 73.7° | 73.3° | 72.9° | 72.5° | 72.1° |
| Standover (cm) | 68.0 | 72.3 | 76.2 | 79.8 | 82.1 | 84.3 | 86.3 |
| Head Tube Length (cm) | 8.8 | 11.4 | 12.8 | 14.9 | 17.2 | 19.3 | 21.4 |
| Wheelbase (cm) | 97.4 | 98.9 | 97.5 | 98.7 | 100 | 101.2 | 102.4 |
| Front Center (cm) | 58.2 | 59.5 | 58.1 | 59.3 | 60.5 | 61.7 | 62.9 |
| Chain Stay Length (cm) | 40.5 | 40.5 | 40.5 | 40.5 | 40.5 | 40.5 | 40.5 |
| Bottom Bracket Drop (cm) | 7.9 | 7.4 | 7.2 | 7.2 | 6.9 | 6.9 | 6.9 |
| Bottom Bracket Height (cm) | 26.1 | 26.6 | 26.9 | 26.9 | 27.1 | 27.1 | 27.1 |
| Fork Rake (cm) | 5.5 | 5.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
| Trail (cm) | 5.8 | 5.8 | 5.7 | 5.7 | 5.7 | 5.8 | 5.8 |
| Stack (cm) | 50 | 52 | 54 | 56 | 58 | 60 | 62 |
| Reach (cm) | 37.5 | 38.1 | 38.6 | 39.2 | 39.8 | 40.3 | 40.9 |
What size frame do I need if I am between sizes? - read here
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