The fastest version of yourself
The Filante SLR ID2 represents the ultimate evolution of Wilier’saerodynamic racing bikes.
Developed hand-in-hand with the Groupama - FDJ Cycling Team, every detail isengineered around you and tells the story of how we experience speed.
Lightweight, responsive, and extremely aerodynamic, the Filante SLR ID2redefines performance standards by putting you at the centre of every designchoice. Aerodynamics is not an end in itself, but serves the rider, deliveringmaximum efficiency, comfort, and control in every condition.
Speed, innovation, and Italian tradition come together in a bike designed toenhance your riding experience - the fastest in the WorldTour landscape.
Integrated innovation: the Aerokit system
The down tube, which has always been one of the most complex areasfrom a design perspective, was developed with a precise goal: to have theminimum aerodynamic drag and to reduce the exposure of the water bottles to theair as much as possible.
The Aerokit system was specifically designed with this intention by ourInnovation Lab together with Elite Cycling, a global leader in the design andproduction of hydration systems for cycling. This partnership has resulted in akit that combines functionality and performance: 1100 ml of total capacity,optimally distributed and with a minimal aerodynamic impact.
From a technical perspective, the Aerokit functions as a veritable spoiler,capable of keeping the air more stable and less turbulent around the frame.Compared to traditional systems, aerodynamic drag is reduced by overtwo-thirds.
The Aerokit is also compatible with traditional round water bottles: 550ml onthe down tube and up to 750ml on the seat tube.
The Filante SLR ID2 frame is designed to meet the different needs of cyclistsby allowing for the installation of traditional bottle cages.
A new aero benchmark on the market
Rigorous testing in the Silverstone wind tunnel pushed an ambitiousproject beyond all expectations.
The verdict was extraordinary: A 13.6% reduction in drag, exceeding the 12%estimated by CFD simulations. In the complete bike-rider system - alwayscentral to Wilier - we recorded a 4.5% improvement in aerodynamic resistance.
The comparison with the Filante SLR ID1 highlights tangible and significantadvantages: maintaining the same speed of 40 km/h, a substantial 14.15 Watts ofpower is saved. Even more impressive are the data over distance: by applyingthe same power of 290 W over a 70 km route, a gain of 1 minute and 45 secondsis achieved, a margin that truly makes a difference in a competitiveenvironment.
The decisive test came in direct comparison with the five competitortop-of-the-range World Tour bikes: an average aerodynamic resistancecoefficient 2.42% better.
At the speeds of modern cycling, this difference means seconds gained andconcrete competitive advantages in the race.
F-Bar ID2: aerodynamic cockpit for superior control and comfort
The new F-Bar ID2 is an aerodynamic cockpit developed around theneeds of the modern cyclist, thanks to the joint efforts of engineers and theathletes of the Groupama – FDJ Cycling Team.
Every detail is designed to offer you maximum efficiency and control in allriding conditions. The O.E.F. (Optimized Ergonomic Flare) design introduces anorthogonal flare of 3 cm between the high and low grip (available in 35/38 cm,37/40 cm, and 39/42 cm), which, unlike other handlebars with differentiatedwidths, keeps the ergonomics of the controls unchanged, guaranteeing you anatural, comfortable, and tucked position to improve aerodynamic performancefurther.
For the first time on a Wilier product, the handlebar clamping hardware iscompletely hidden, benefiting aesthetics, protection from dirt and sweat, andaerodynamic performance - all while fully complying with the latest UCIregulations.
Fork: true aerodynamic efficiency is in the details
For the design of the fork, we analysed numerous NACA airfoils -aerodynamic shapes derived from aeronautics and mathematically defined toensure maximum efficiency in the airflow. Every airfoil was tested incombination with the wheel and tyre through CFD simulations, consideringdifferent wind incidence angles to reproduce real-world usage conditions.
The result is a fork whose legs combine an external NACA airfoil with a flatinner profile.
The fork crown cone is even more pronounced than on the Filante SLR,guaranteeing greater torsional stiffness combined with superior stressresistance.
The left fork leg integrates a thin aerodynamic fin that skims the disc andenvelops the brake caliper: a partial fairing already successfully experimentedwith on the Supersonica SLR, now further refined.
Finally, the thru axle clamping bushing has been completely encased into theright fork leg: a first for Wilier products, which combines aesthetic elegance,clean-cut silhouettes, and a tangible benefit in terms of aerodynamics.
The seatpost that combines efficiency and light weight
With the experience gained in the development of the SupersonicaSLR, we already had the right formula in our labs: a balance betweenaesthetics, light weight, and comfort.
The new seatpost for the Filante SLR ID2 originates from this recipe, featuringa slender and sharp profile that optimises aerodynamic penetration withoutcompromising stiffness and while guaranteeing good vertical vibrationabsorption.
It is available as standard with 0 offset or – upon request – with 15 mmsetback.
Enhanced integration of the Shimano Di2 battery
With such a sleek design for the seatpost, the Shimano Di2 batteryneeded to be repositioned. Moving the battery to the bottom bracket box areagave us multiple, immediate, and tangible advantages:
Accessibility: the battery, enclosed in a resin casing and secured with twoscrews, can be checked or replaced in a matter of moments, without removing theseatpost or changing the saddle height.
Lower centre of gravity: the new position contributes to lowering the bike'scentre of mass, in synergy with the lowered Aerokit. The result is a morestable, precise, and manageable bike when riding at high speeds.
Rear triangle: aesthetic continuity, technical evolution
We chose to preserve the family feel of the previous Filante,maintaining wide rear stays that join the seat tube with a broken line, whichgives the frame a determined character when viewed from behind.
To a superficial eye, they might look similar to the ID1 version, but in actualfact, they have been redesigned in every detail. Analyses of the dynamicinteractions between the stays and leg movement during pedalling guided ustowards a counter-intuitive solution: inclining the stays inward by 2.5°.
The rear triangle has been slightly lengthened: a choice that allows for betterintegration of the new transmission groupsets with the UDH dropout, increasestyre clearance (up to 34 mm), and improves the overall stability of thebicycle.
Tyre clearance and front chainring
The Filante SLR ID2 has been designed to offer you the perfectbalance between aerodynamics and versatility. A tyre clearance of up to 34 mmallows you to choose the perfect tyre to tackle a wide variety of surfaces withconfidence, while simultaneously guaranteeing maximum aerodynamic efficiency.
Thanks to the removable derailleur support, the drivetrain can also beconfigured as a 1x setup, accommodating chainrings with up to 55 teeth. Thissolution enhances the clean-cut aesthetics, reduces weight, and boostsperformance in the most ‘racing’ configurations.
Weight and materials: the essence of speed is in balance
For an aero frame, the starting point is always the pursuit ofbalance between aerodynamics, stiffness, and responsiveness. It is not aboutchasing extreme light weight, but about achieving maximum efficiency at highspeeds, guaranteeing a precise and stable response in every riding condition,while still allowing for builds slightly above the UCI limits.
To achieve this goal, the choice of materials is crucial. For the Filante SLRID2, we have also adopted the highest quality composites, the result of a collaborationwith Toray, a world leader in carbon fibre production.
For the lamination of the monocoque, three types of fibres are used – T800,T1100, and M46JB – selected and mixed better to combine responsiveness,stiffness, and light weight, resulting in an overall weight, in the Dura-AceDi2 specification, of 7.1 kg.
The Colour of Speed
Lunar Grey
A deep grey, inspired by the moon’s reflections on the water.
Like the tides that follow its call, this colour plays with light in a subtlebut continuous way, shifting from the soft tones of purple to elegant silveryglints.
Striking the perfect balance between sobriety and movement.
Solar Bronze
Warm and enveloping, like golden sand shimmering at sunset. Solar Bronze captures the light and returns it in metallic reflections that change with every glance.
It is the colour of solar energy transformed into movement, a balance between ancient elegance and modern vitality.
Eclipse black
Deep and glossy, like polished obsidian.
Eclipse Black holds onto the light and releases it in subtle reflections, much like an eclipse that both shows and conceals at the same time.
It is a colour that transmits absolute elegance, silent power, and a touch of mystery, amplifying everything around it.
Geometries and fitting
Direct collaboration with the Groupama - FDJ Cycling Team led us torefine every minute detail in terms of frame geometries. The goal: to have avirtually bespoke fitting system.
Thanks to the AccuFit system, every size maintains the same geometricconsistency and fitting precision, delivering a balanced, natural, andhigh-performance riding experience, whatever your height or pedalling style.
The Filante SLR ID2 is conceived like a tailored suit for you: with 6 framesizes, 7 handlebar spacer combinations, 5 stem sizes, and 2 seatpost versions,420 fitting configurations are possible, each differing from the next by a mere2 millimetres. This precision allows for a customised saddle position, like ahigh-end tailoring garment.
Specifications:
Frame: Filante SLR ID2
Fork: Filante SLR ID2
Seatpost: Filante ID2 seatpost (+ Ritchey 7x9.6 clampset)
Thru axles:
· MICHE rear axle EX LGT RD12×170 1P1 UDH Blue
· MICHE front axle EX LIGHTRD 12×118 Blue
Vertical computer mount /Filante
Frame weight: approx.870 g (size M)
Complete bike weight: from7.1 kg (Dura-Ace Di2 setup)
Tire clearance: upto 34 mm
Drivetrain: Doubleor single chainring (compatible up to 56T)
Hydration system: IntegratedElite Aerokit, 1100 ml
Cable routing: Fullyinternal
Standards: UCIcompliant
