2023 Cannondale SuperSix EVO Size Charts and Guide

In this article, our road bike specialist Bernard Lu guides you on how to find your ideal Cannondale Supersix Evo size.

Experienced cyclist turned writer with 7+ years working in bike shops, overseeing retail and workshop operations.

This guide provides a detailed sizing chart to help you find your ideal Cannondale SuperSix EVO bike size.

According to Cannondale, the SuperSix EVO frameset’s geometry is designed for speed and aerodynamic efficiency, reflected in its ultra-light carbon construction and low-drag design. This geometry puts the rider in an aggressive position, ideal for road racing and achieving PRs.

Consider the Cannondale Synapse for a more comfortable (endurance) geometry.

There are eight Cannondale SuperSix EVO frame sizes available for cyclists with height from 5’3″ to 6’6″ (160 to 198cm).

Bike sizeRider height (in)Rider height (cm)
485’3″ to 5’7″160 to 170
515’5″ to 5’9″165 to 175
545’7″ to 5’11”170 to 180
565’10” to 6’1″177 to 185
586’0″ to 6’3″182 to 192
606’2″ to 6’6″187 to 198
Cannondale SuperSix EVO bike size chart vs height. Source: Cannondale

Important things to consider

Here are important things to consider based on my experience from working at the bike shop and owning many bikes in the past.

Sizing is different across brands

Cannondale categorizes the SuperSix EVO into values like 44, 48, 51, 54, 56, 58, and 61.

These labels provide a general indication of the frame size. However, these labels may not be consistent across different bike makes. What constitutes a size 48 in a Cannondale might be different in another brand that uses a similar sizing, such as Cervelo R5 or Specialized Tarmac SL8.

Therefore, relying on these labels alone can be misleading.

Understand the frame’s stack and reach measurements

Diagram of a road bicycle illustrating bike geometry. Two main measurements are highlighted: 'Reach', represented by a horizontal dashed line from the center of the bottom bracket to the top center of the handlebar, and 'Stack', shown as a vertical dashed line from the center of the bottom bracket to the same handlebar point.
Cannondale SuperSix EVO Stack and Reach

If you already own a bike that fits you well and is comfortable, use that as a reference point. 

Find out its Stack and Reach measurements and compare them against the Cannondale SuperSix EVO’s measurements. Pick the closest size.

  • Reach is the horizontal distance from the bottom bracket to the center of the head tube. It determines how stretched or compact your riding position will be. A longer reach results in a more stretched-out, aggressive riding posture, while a shorter reach promotes a more upright position.
  • Stack is the vertical distance from the bottom bracket to the top of the head tube. Stack height influences how high your handlebars will be relative to your saddle. A higher stack leads to a more upright riding position, which can be more comfortable, especially for longer rides, older riders, and those with less flexibility on the lower back.

The Stack and Reach measurements can be found on the Cannondale SuperSix EVO’s frame geometry chart below.

What to do if you fall between sizes?

It’s common to fall between two bike sizes for the Cannondale SuperSix EVO.

If that’s you, there are many things to consider, such as your legs-to-torso proportions, the type of bike (race vs endurance), and the final look of the bike, taking into consideration the number of spacers, stem length, and the amount of exposed seatpost.

Having said that, generally, I’d recommend sizing down (go for the smaller of two sizes) for most cyclists.

The smaller frame has more room to extend reach, and increase stack. It’s easier to make a smaller frame bigger than vice versa. However, there is a limit to these corrective measures to avoid having too many spacers (30mm+) or too much exposed seatpost, which makes the bike look out of proportion.

The smaller frame is also stiffer, more maneuverable, and marginally lighter. If set up right, it’ll have more exposed seatpost, leading to more comfort due to increased seatpost flex.

If you have a normal legs-to-torso proportion, opting for the smaller size would be a better choice.

  • If you have long legs with a shorter torso, consider sizing up to avoid having too much exposed seatpost. Most seatposts are 300 to 400mm long and have a minimum insertion length to ensure safety.
  • If you have short legs with a longer torso, consider sizing down and using a longer stem to extend reach.

Try before you buy

Visit your local Cannondale dealer to test different sizes to get a feel for what suits you best. Most large and reputable Cannondale dealers can provide a test ride if they have the bike in your size in their demo fleet.

Get a professional bike fit

According to Tara Lazarski, who is a physiotherapist who has worked with pro cyclists,

Consider a professional bike fit as a good investment for your cycling career. A bike fit helps you avoid issues like chronic knee or back pain, and for most riders, a proper fit will also feel more comfortable and help them pedal more efficiently.

Cannondale SuperSix EVO frame geometry (2019-2023)

  • Years: 2019, 2020, 2021, 2022, 2023
  • Models: LAB71, Hi-MOD, 1, 2, 3, 4
  • Frame material: Carbon

The frame geometry measurements are explained in this article.

Frame Size44485154565861
Rider Height (cm)154 to 165160 to 170165 to 175170 to 180177 to 185182 to 192187 to 198
Rider Height (ft)5’1″ to 5’5″5’3″ to 5’7″5’5″ to 5’9″5’7″ to 5’11”5’10” to 6’1″6’0″ to 6’3″6’2″ to 6’6″
Stack (mm)505520535555575595625
Reach (mm)370374378384389395403
Top Tube, Actual (mm)469479489509523541564
Top Tube, Horizontal (mm)512520528546562578603
Seat Tube (mm)400438477515534567600
Seat Tube Angle74.3°74.3°74.3°78.7°73.38°72.9°72.3°
Head Tube (mm)100114130154165188220
Head Tube Angle70.9°71.2°71.2°71.2°73°73°73°
Standover Height (mm)698727756788807836866
Wheelbase (mm)981987996101099410071024
Front Center (mm)682589598611594607624
Chainstay (mm)410410410410410410410
BB Drop (mm)74747472726969
BB Height (mm)268268268271271273279
Fork Offset (mm)55555555454545
Fork Trail (mm)60585858585858
Cannondale SuperSix EVO (2019-2023) frame geometry chart. Source: Cannondale


  1. Cannondale SuperSix EVO,
Bernard Lu at Mr.Mamil

Bernard Lu has 7+ years of experience working in a bicycle shop, overseeing the retail and workshop operations. He’s a qualified bicycle mechanic who understands a cyclist’s needs and speaks the same cycling lingo.

If you meet him at the cafe, he will happily talk to you for hours about all the intricacies of bikes and cycling tech. Just buy him a coffee next time you see him.