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Best aero road bikes 2019

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Bianchi Aria Disc Ultegra

Bianchi Aria Disc Ultegra
(Image credit: Courtesy)
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Specialized Venge Pro

Specialized Venge Pro
(Image credit: Courtesy)
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Scott Foil Disc

Scott Foil Disc
(Image credit: Courtesy)
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Pinarello Dogma F12

Pinarello Dogma F12
(Image credit: Courtesy)
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Merida Reacto Team-E

Merida Reacto Team-E
(Image credit: Courtesy)
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Giant Propel Advanced 1 Disc

Giant Propel Advanced 1 Disc
(Image credit: Courtesy)
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Cervelo S3 Ultegra

Cervelo S3 Ultegra
(Image credit: Courtesy)
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Canyon Aeroad CF SL 7.0

Canyon Aeroad CF SL 7.0
(Image credit: Courtesy)
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Cannondale SystemSix Dura-Ace

Cannondale SystemSix Dura-Ace
(Image credit: Courtesy)
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Trek Madone SLR 6 Disc

Trek Madone SLR 6 Disc
(Image credit: Courtesy)

The popularity of aero road bikes has been on a consistent upward trajectory over the past decade. The fascination with going faster by using less energy has long been considered the holy-grail in cycling, and this need for speed, particularly in the pro peloton, has led to vast investment from manufacturers, which has resulted in radically faster, more compliant and lighter-weight aero bikes, thanks to advances in aerodynamic understanding, computational fluid dynamics testing, and improved carbon-fibre layering techniques.

Truncated aerofoil tube profiles, component integration and deep section aero wheels have become the order of the day as bike manufacturers attempt to out-do each other in a bid for the fastest aero road bike crown.

While significantly lighter than the time trial bikes from which they draw inspiration, the modern aero road bike is designed to save you watts by cutting through the air like a samurai sword. There's a lot of science involved but even the casual weekend rider will find it difficult to dispute the speed gains of the aero road bike - both from a visceral and physical sense.

However, it's not just speed, watt savings and reduced drag coefficients but also all-round comfort that has become an important factor to consider when choosing an aero road bike. Early examples of aero road bikes were known for their unforgiving ride qualities, but that's not the case anymore. It appears as though the recipe has been mastered with all modern examples offering a well-balanced combination of speed, lightness and compliance.

Aero road bikes explained

The more-easily a moving object cuts through the air, the less energy it needs to keep it moving - it's simple physics really. What this means is that if the playing fields were equal and every cyclist possessed the exact same functional threshold power (FTP), the rider with the most aerodynamic bike would win the race - every time.

The speed at which the benefits of improved aerodynamics become greater than that of saving weight is around 15kph, which, depending on fitness, is likely to be at a gradient of around six per cent. Therefore, in all but the steepest of mountain days, it's not necessarily the lightest bike that wins the race, but the one that is best suited to the topography.

In the pro peloton, team mechanics are now able to get their aero road bikes close to the minimum weight limit of 6.8kg, meaning there's little to be gained by using a brand's less-aerodynamic 'lightweight' offering. However, for the rest of us, where that limit doesn't apply, the decision ought to be a more considered one. Here are a few attributes to look at before buying an aero road bike.

1. Aerofoil tubing

Round tubes are out and truncated, tear-drop-style tubing is in. These wind-tunnel-honed shapes have resulted in faster, more slippery bikes which have also made for some aggressive-looking facades, too.

2. Integration

One of the biggest buzzwords, when it comes anything pertaining to aero bikes, is integration. Simply put, integration refers to the seamless melding of proprietary components to the bike's frame so that the overall aerodynamics are not adversely affected. As such the cockpit, brakes and seatpost have all been refined and positioned so as not to meddle with the bike's drag coefficient. Some brands offer one-piece handlebar/stem combinations with hidden cables, others neatly integrate the brake calipers or utilise frame-specific seatposts with invisible binders.

3. Wheels

Bar some of the more entry-level offerings in each model range, most aero road bikes come with deep rim profiles as standard. Just remember that you can always upgrade your wheelset should you require something more aggressive.

Best aero road bikes you can buy today

Cannondale SystemSix

Verdict: The fastest bike Cannondale have ever made

  • Brake: Disc
  • Frame: Hi-Mod Carbon, Carbon
  • Sizes (cm): 47, 51, 54, 56, 58, 60, 62 (men)
  • Weight: 7.8kg (Ultegra 54)

+ Speed. Handling. Price
- Weight. Aesthetics not for everyone

The SystemSix moniker is nothing new to Cannondale, having first appeared 12 years ago in the form of a hybrid carbon fibre/aluminium composite frame. Ahead of its time in many ways, it paved the way for future models such as the lightweight and dynamic SuperSix Evo, which has also been given the aero treatment.

The blueprint of the all-new SystemSix - Cannondale's first dedicated aero road bike - has been touted by the American company to be the 'fastest on the planet'. At 7.8kg it may seem a little on the portly side but Cannondale says the added grammage will do little to thwart progress, even on the hills.

The SystemSix makes an endearing case for itself as far as free speed is concerned. It's seriously fast - be it on a descent, flat or climb, and the powerful disc brakes make for controlled modulation mid-corner.

Offering a choice of Shimano Dura-Ace Di2, Ultegra Di2, Ultegra mechanical and Red eTap AXS groupsets, there should be a SystemSix for all levels of budget.

Taylor Phinney's Cannondale SystemSix Disc

Model range

  • Cannondale SystemSix Hi-MOD Dura-Ace Di2
  • Cannondale SystemSix Hi-MOD Red eTap AXS
  • Cannondale SystemSix Carbon Ultegra Di2
  • Cannondale SystemSix Carbon Ultegra
  • Cannondale SystemSix Women's Carbon Ultegra Di2

Pinarello Dogma F12

Verdict: Race-proven and Grand Tour-tested, the Dogma F12 is on the heavier side, but the ride quality is hard to fault

  • Brake: Disc, rim
  • Frame: Carbon
  • Sizes (cm): 42, 44, 46.5, 47, 50, 51.5, 53, 54, 55, 56, 57.5, 59.5, 62
  • Weight: 840g (Frame only)

+ Sizing. Race-proven performance. Variety
- Pricing. Polarising aesthetics

Developed in collaboration with Team Ineos the Pinarello Dogma F12 is available in both rim- and disc-brake guises, both of which were developed independently of each other in a bid to ensure brand's race-honed tenets remained unsullied.

As such, disc-equipped versions benefit from a 40 per cent stiffer fork to better deal with the added braking forces of hydraulic stoppers while rim-brake models have finally made the move to direct-mount calipers. Interestingly, Pinarello decided to skip the F11 moniker and jump straight to F12, just like the F10 before it which chose to forgo the F9 badge.

As a dedicated aero road bike, Pinarello has ensured the Dogma F12 has achieved the best aerodynamic efficiency values of any of its predecessors thanks to re-worked, wind-tunnel-optimised asymmetric tubing. While it still retains the same Flat Back downtube of the F10, it gets a kinked toptube - an addition the Italian brand claims is a case of form following function.

Other key updates include a redesigned bottom bracket and chunkier chainstays which have bolstered stiffness by 10 per cent (over the F10), improved tyre clearance, and prompted the use of internal cable routing thanks to the new Talon Ultra integrated handlebar.

The one downside of the F12 is its overall weight. Ahead of the Tour de France's more-mountainous days, in a bid to bring the weight down to the UCI's 6.8kg minimum weight limit, Team Ineos invested in a number of £5,000 Lightweight Meilenstein Obermayer wheelsets.

Egan Bernal's Pinarello Dogma F12

Model range

  • Pinarello Dogma F12 Disc Red eTap AXS
  • Pinarello Dogma F12 Disc Dura-Ace Di2
  • Pinarello Dogma F12 Disc Dura-Ace
  • Pinarello Dogma F12 Disc Campagnolo Super Record EPS
  • Pinarello Dogma F12 Disc Campagnolo Super Record
  • Pinarello Dogma F12 Campagnolo Super Record EPS
  • Pinarello Dogma F12 Campagnolo Super Record
  • Pinarello Dogma F12 Dura-Ace Di2
  • Pinarello Dogma F12 Dura-Ace

Bianchi Aria

Verdict: An affordable aero race machine loaded with tech and spec

  • Brake: Disc/rim
  • Frame: Carbon
  • Sizes (cm): 44, 47, 50, 53, 55, 57, 59, 61 (unisex)
  • Weight: 8.38kg (Ultegra disc 53cm)

+ Speed. Handling Price
- Weight. Wheels could be deeper

The Bianchi Aria is one of the most versatile aero road bike offerings gathered here. Not only is it super-efficient in a straight line boasting a phenomenal turn of speed, but it's also impressively responsive to directional changes thanks to the steep head angle and racy geometry.

The frame comprises all the aero-optimised shapes you'd expect from a bike of this nature, with an integrated frame and fork, dropped seat stays and a d-shaped seat post - it all looks very fast.

The range comes in the choice of both rim- and disc-brake options and while it does err on the heavy side, it still climbs well and offers impressive compliance despite lacking the Countervail technology as used on the brand's higher-value models such as the Oltre.

That said, if it's greater comfort you're after, disc-equipped versions can accommodate wider tyres - the Aria comes with 28C rubber as standard.

Model range

  • Bianchi Aria Ultegra Disc
  • Bianchi Aria 105 Disc
  • Bianchi Aria Ultegra Di2 Disc
  • Bianchi Aria Ultegra Di2
  • Bianchi Aria Ultegra
  • Bianchi Aria Triathon Ultegra
  • Bianchi Aria 105

Canyon Aeroad

Verdict: The Canyon Aeroad hits all the right markers in terms of aesthetics, performance and price

  • Brake: Disc/rim
  • Frame: Carbon
  • Sizes: 2XS, XS, S, M, L, XL, 2XL (Men), 2XS, XS, S, M (Women)
  • Weight: 7.6kg (Aeroad CF SL 7.0)

+ Weight, aesthetics, price.
- Aggressive geometry

With a name such as Aeroad there's no mistaking what this weapon was designed to do— attack the finish line as quickly as possible.

There are a host of models available from rim and disc to men- and women-specific options, the Aeroad has something for everybody, regardless of budget.

To make its products more accessible to a broader spectrum of riders, Canyon offers an impressive selection of entry-level models that feature Shimano 105 components, a move which has done little to impact the overall performance and weight. In fact, the entry-level Aeroad CF SL 7.0 weighs just 7.6kg.

As expected, the Aeroad does get more expensive the further you move up the range, the pinnacle of which is the Aeroad CF SLX Disc 9.0 SL which comes tricked out in a SRAM Red eTap groupset.

Nathan Haas' Canyon Aeroad CF SLX 9 SL Disc

Model range

  • Canyon Aeroad CF SLX Disc 9.0 SL
  • Canyon Aeroad CF SLX Disc 9.0 Di2
  • Canyon Aeroad CF SLX 9.0 SL
  • Canyon Aeroad CF SLX 9.0 Di2
  • Canyon Aeroad CF SL Disc 8.0
  • Canyon Aeroad CF SL 8.0
  • Canyon Aeroad CF SL Disc 7.0
  • Canyon Aeroad CF SL 7.0

Buy Aeroad from Canyon

Scott Foil

Verdict: With its proven pedigree the Scott Foil makes no bones about its ability as a race bike - it's firm and razor-sharp

  • Brake: Disc, rim
  • Frame: Carbon
  • Sizes (cm): 47, 49, 52, 54, 56, 58, 61
  • Weight: 7.3kg (Foil Premium Disc 54cm)

+ Performance. Speed. Handling. Lightweight
- Ride quality on the firmer side

The Scott Foil aero road bike may not be the cheapest option out there but when it comes to ride comfort, aesthetics and integration - it's a difficult bike to trump. In fact, with stage wins at all three grand tours and a slew of classics victories to boot, the Foil's pedigree is indisputable as an out-and-out race bike.

While the line-up still comprises both rim brake- and disc brake-equipped models, it's the latter that adds enhanced levels of comfort thanks to the use of wider tyres. Unlike the rim-brake version which utilises a bottom-bracket-mounted caliper (something that limits events the use of crank-based power meters) the disc version is compatible with all power meter types, crank-arm units included.

Regardless of which model you prefer the Foil is one of the most comfortable aero road bikes in the segment - it has won Paris-Roubaix after all.

Annemiek van Vleuten's Giro Rosa winning Scott Foil

Model range

  • Scott Foil Ultimate Disc
  • Scott Foil Premium Disc
  • Scott Foil RC Disc
  • Scott Foil 10 Disc
  • Scott Foil 20 Disc
  • Scott Foil 10
  • Scott Foil 20
  • Scott Foil 30

Cervelo S3

Verdict: Fast and reactive, if a little firm, the Cervelo S3 is one of the most refined and purest aero road bike options

  • Brake: Disc, rim
  • Frame: Carbon
  • Sizes (cm): 48, 51, 54, 56, 58, 61
  • Weight: 8.15kg (S3 Ultegra Disc 54cm)

+ Pedigree. Speed. Handling. Aesthetics
- Lacks compliance. Pricey

The notion of aerodynamics is nothing particularly new to Cervelo having single-handedly created the aero road bike concept back in 2002 with the aluminium Soloist. With aerofoil tubing developed by NACA – the National Advisory Committee for Aeronautics – the Soloist was unlike anything seen before.

Like all models in Cervelo's S range, the S3 has been designed to be as slippery as possible utilising wind tunnel testing data to refine frame geometry and reduce drag coefficient. As such the S3 has gone with internal cable routing and a new bar and stem to complement its wind-cheating physique, something Cervelo dubs TrueAero - which makes it faster than the previous-generation S5.

All these tweaks have resulted in a 102g weight saving over its predecessor which translates to a saving of around 13 watts. It's also stiffer and more compliant than before and the range also benefits from g the added surety of hydraulic disc-brake modulation.

Model range

  • Cervelo S3 Ultegra Di2 Disc
  • Cervelo S3 Ultegra Disc
  • Cervelo S3 Ultegra Di2
  • Cervelo S3 Ultegra

Buy S3 from Cervelo

Specialized Venge

Verdict: Specialized has managed to make their aero road bike lighter and more user-friendly without jeopardising its straight-line speed

  • Brake: Disc
  • Frame: Carbon
  • Sizes (cm): 49, 52, 54, 56, 58, 61 (men)
  • Weight: 7.42kg (Venge Pro 56cm)

+ Speed, weight, stiffness
- Price

The third-generation Specialized Venge is the lightest version yet with dropped seat stays and shaved tubing that make for an aggressive and purposeful facade.

The current range comprises only two models for now: the S-Works Venge and Venge Pro. Honed in the company's 'Win Tunnel' wind tunnel, the Venge favours speed and performance over comfort – Specialized claims the new Venge will save you 8 seconds over 40km compared to its predecessor, the Venge ViAS.

That's not to say it's bereft of any sense of compliance. While it may not boast the fancy suspension trickery of the Roubaix, the Venge gains added levels of comfort by way of bigger tyres and lower pressure, it can handle rubber of up to 32mm.

The new model also benefits from a more user-considered build - for example, split headset spacers enable adjustment without the need to re-cable the entire front end.

Elia Viviani's Specialized S-Works Venge

Model range

  • Specialized S-Works Venge eTap
  • Specialized S-Works Venge
  • Specialized Venge Pro eTap
  • Specialized Venge Pro

Giant Propel Advanced

Verdict: Taking integration to the next level, the Propel Advanced is one of the better disc-equipped aero road bikes in the segment

  • Brake: Disc, rim
  • Frame: Carbon
  • Sizes: S, M, ML, L
  • Weight: 8kg (Propel Advanced Pro Disc Medium)

+ Speed. Aero tech. Integration
- Limited colourways

The Giant Propel Advanced, like its rivals, is available in both rim- and disc-brake configuration but boasts a high level of integration across the board to ensure it stays slippery. In fact, it's only the entry-level Propel Advanced 1 that utilises a regular stem/bar cockpit.

Although the range still makes do with a couple of rim-brake options, the Propel Advanced was completely redesigned in 2018 with disc brakes in mind using both Computational Fluid Dynamics (CFD) and wind tunnel testing, the result of which has culminated in a 10-watt improvement over its predecessor.

One of the Propel's most intriguing attributes is the stem which hides the shift cables and brake hoses and keeps everything tidy. The range also gets wind-cheating deep-section 42/65mm front/rear aero wheels outfitted in the choice of Giant's very own SLR or Cadex monikers.

Patrick Bevin's Giant Propel Disc

Model range

  • Giant Propel Advanced SL Disc
  • Giant Propel Advanced Pro Disc
  • Giant Propel Advanced Disc
  • Giant Propel Advanced Pro
  • Giant Propel Advanced

Trek Madone

Verdict: Trek's flagship road bike is faster and more comfortable than ever before

  • Brake: Disc/rim
  • Frame: Carbon
  • Sizes (cm): 50, 52, 54, 56, 58, 60, 62 (men); 47, 50, 52, 54, 56 (women)
  • Weight: 7.81kg (Madone SLR 8 Disc 56cm)

+ All round brilliance, aesthetics, compliance
- Price, weight

You'd expect something as aero-looking and performance-orientated as the Trek Madone to possess a harsh and unforgiving ride quality but it doesn't. Like the Domane, the Madone also utilises an IsoSpeed decoupler, but in this application, it's located in the top tube and offers a certain degree of adjustability – something Trek claims has boosted comfort and stiffness by 17 and 21 per cent respectively.

The Madone however, has always been a proponent of aerodynamic trickery and, as such, employs a compendium of clever go-faster techniques such as an integrated two-piece carbon bar and stem (SLR models), Kammtail Virtual Foil tubing and lighter, more aero disc brakes that will accommodate tyres of up to 28mm.

A lighter, rim brake version is also available with repositioned front brakes behind the fork for improved aero proficiency. As the range-topper in the Trek road bike range, all Madones feature carbon frames and high-end groupsets.

Richie Porte's Trek Madone SLR 9 Disc eTap

Model range

  • Trek Madone SLR 9 Disc eTap
  • Trek Madone SLR 9 Disc
  • Trek Madone SLR 9
  • Trek Madone SLR 8 Disc
  • Trek Madone SLR 8
  • Trek Madone SLR 7 Disc eTap
  • Trek Madone SLR 7 Disc
  • Trek Madone SLR 6 Disc
  • Trek Madone SLR 6 Disc Speed
  • Trek Madone SLR 6
  • Trek Madone SL 6

Merida Reacto

Verdict: an Incredibly fast machine with the handling characteristics to match

  • Brake: Disc
  • Frame: Carbon
  • Sizes: XS, S, S/M, M/L, L, XL
  • Weight: 7.78kg (Reacto Disc 8000-E medium)

+ Performance. Handling. Variety, both in terms of spec and carbon layups
- Firm ride quality. Polarising looks

The Merida Reacto aero road bike has been updated to be more in line with modern trends - lighter, aero and more efficient. As such, the Reacto's slimmed down, aerofoil tubing and dropped seat stays make up the majority of the aero alterations.

Apart from the enhanced aerodynamic gains, the dropped seat stays and S-Flex carbon seat post provide improved levels of comfort and pliancy by flexing and absorbing road chatter.

Despite the manufacturer's claims of bolstering comfort and pliancy, it's still one of the stiffest and responsive aero road bikes in the category, a fact underscored by the use of high-end CF4 carbon and aggressive frame geometry complete with integrated Vision Metron cockpit on its raciest of models.

Vincenzo Nibali's Merida Reacto

Model range

  • Merida Reacto Disc Team-E
  • Merida Reacto Team-E
  • Merida Reacto Disc 8000-E
  • Merida Reacto 8000-E
  • Merida Reacto Disc 7000-E
  • Merida Reacto 7000-E
  • Merida Reacto 6000
  • Merida Reacto Disc 5000
  • Merida Reacto 5000
  • Merida Reacto Disc 4000
  • Merida Reacto 4000
  • Merida Reacto 500
  • Merida Reacto 400
  • Merida Reacto 300

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