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Wilier Filante SLR: Wilier launches new aero road bike

10 Nov 2020
Verdict:

All you need to know about the new Wilier Filante SLR aero road bike

The new Wilier Filante SLR is the latest aero race bike from the iconic Italian brand and promises to be its most well-rounded aero race bike yet.

Since the launch of its first aero race bike in 2010, the Imperiale, Wilier has continued along a path of developing the fastest bike it possibly can which ultimately resulted in the release of the Cento10Pro in 2016. An aggressive and stiff frameset, it reflected the trend at the time to offer aero performance with no compromise on stiffness or comfort.

However, bike manufacturing has progressed in the four years since and outright aero race bikes are no longer en vogue. Instead, leading manufacturers are all about making their aero bikes lighter and more comfortable, and a better all-round ride. Basically, they want their aero bikes to have their cake and eat it too.

This is what Wilier hopes to achieve with its new Filante SLR, an aero race bike built for the modern-day racer.

Aero at heart

Filante is Italian for ‘racy’, which gives you some indication as to what qualities this bike claims to possess. Wilier has still produced an aero race bike that is designed to go very fast on very flat roads and is set to be used by pro teams Astana and Total Direct Energie in the quickest races on the calendar.

However, lead technical manager Claudio Salomoni says he was aiming for more than just an impressive bike in the wind tunnel.

The Filante SLR has been real-world-tested to ensure it performs on the road and because of this has seen a change in shape from the outgoing Cento10Pro. While it will continue to utilise Naca airfoil shapes across the frame, the tubing has been truncated to include more kamm-tail profiles.

Wilier has been scant with the details on the Filante’s aero performance, so it may be that the new bike is slower than the outgoing Cento10Pro. However, this bike is all about performing in the real world and Wilier believes that by truncating the frame’s tubes, it is helping the bike deal with winds at wider angles.

Interestingly Wilier has also persisted with a wide fork stance to the bike, similar to that of the Zero SLR it launched last year.

Wilier claims that wind-tunnel testing proves that the wider the fork and the wider the distance between the fork and the wheel, the lower the air turbulence being pushed past the bike, therefore making it more aero.

With that in mind, the Filante SLR fork is now 7mm wider compared to the outgoing Cento10Pro, so wide in fact it actually obscures the bike’s rear triangle from air that directly hits the front of the bike, again something Wilier claims aids aerodynamics.

Wilier says altering the tube profiles has also helped it reduce the weight of the Filante SLR.

According to the brand, smoother tubes need less resin during fabrication so Wilier claims it has reduced frame weight by 11% from the Cento10Pro – knocking the frameset down to 870g and 360g for the fork – while also retaining lateral stiffness.

All in, this means the new Wilier Filante SLR aero bike is not only just 90g heavier than its lightweight counterpart, the Zero SLR, but also slightly lighter than the new Canyon Aeroad (915g) and Trek Madone (920g) – two of its leading competitors, and only around 70g heavier than the Specialized S-Works Tarmac SL7.

Wilier has designed the Filante SLR to be asymmetric, something we are most familiar with seeing on competitor Pinarello’s F series. The left side of the Filante’s fork has been beefed up, as has the drive-side of the rear triangle, to help withstand the heavy braking and drivetrain forces respectively experienced by both.

While Wilier has joined the status quo with regards to creating a more all-round aero bike, unlike the rest it has persisted with a one-piece carbon monocoque cockpit. It comes in five stem sizes all with 35mm of adjustable spacers.

At 88mm, 101mm, 114mm, 127mm and 140mm, stem lengths are also slightly different from what you would usually expect but this has been done to ensure no stem height and length combinations cause stack or reach overlap between different frame sizes.

The handlebars also fully house the groupset’s cables. A custom super-thin top headset bearing makes space for the cables while also accommodating a newly round steerer, which Wilier says is stiffer than the D-shape used previously on the Cento10Pro.

Specs, colours and price

We are sad to report that the new Wilier Filante SLR will not be available in the beautiful Ramato bronze colourway just yet. Instead, we will have to settle for a tidy matte black, velvet red or, our personal favourite, iridescent grey and green finish.

The new Filante SLR will only be available to buy with electronic groupsets but will be sold with options from all three of the big players, carrying prices to reflect the spec changes.

Top of the pile will be a Campagnolo Super Record EPS build with matching Bora WTO 33 disc wheels, set to be retailed for £11,1600. Alternatively, you can opt for a build with Shamal carbon wheels costing £10,080.

The Shimano Dura-Ace Di2 build will come with two wheels options: Wilier ULT38KT ceramic speed or Wilier SLR 42 KC carbon. These will cost £10,170, £9,270 and respectively.

There will also be the option of buying with Shimano Ultegra Di2, which bumps costs down to around £7,380 with Wilier's SLR 42 KC wheels or £6,480 with Shimano's RS170 wheels.

Finally, there will be Sram-built Filantes with both Red and Force eTap AXS. The pick of the bunch here is the Sram Force eTap AXS build with power meter and SLR 42 KC carbon wheels for £8,100.

For more on the Wilier Filante SLR, visit Wilier's website here.

Wilier Filante SLR prices:

Groupset Wheels Price
Campagnolo Super Record EPS Campagnolo Bora WTO 33 £11,160
Campagnolo Super Record EPS Campagnolo Shamal carbon £10,080
Shimano Dura-Ace Di2 Wilier ULT38KT/ceramic speed £10,170
Shimano Dura-Ace Di2 Wilier SLR 42 KC carbon £9,270
Sram Red eTap AXS XDR Wilier ULT38KT/ceramic speed £10,260
Sram Red eTap AXS XDR Wilier SLR 42 KC carbon £9,360
Shimano Ultegra Di2 Wilier SLR 42 KC carbon £7,380
Shimano Ultegra Di2 Shimano RS170 £6,480
Sram Force eTap w/power meter Wilier SLR 42 KC carbon £8,100
Sram Force eTap Wilier SLR 42 KC carbon £7,470
Sram Force eTap Wide Wilier SLR 42 KC carbon £7,470
Price: 
From £6,480

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