Wilier has introduced a new aero frame to its road bike lineup, the Filante SLR.

This new bike is the latest chapter in Wilier's aero frame history: ten years ago, the company introduced the Imperiale, which was followed by the CENTO1 aero frame, which was followed by the CENTO2 aero frame, which was followed by the CENTO3 aero frame. It was followed in 2013 by the Cento 1 Air, which introduced the NACA Airfoil and truncated tail.

Willières' design ambition for the new Filante is to offer an outstanding aero package at a weight approaching that of the Cento10 Pro. By adding subtle rounding to many aero joints, Filante slightly reduces the overall material that makes up the frame compared to the angular form of the Cento10 Pro.

With a frame weight of 870g, Filante is undeniably lightweight without compromising Wilier's compliance.

The company's engineers, industrial designers, and aerodynamicists went beyond wind tunnel testing in developing Filante. Recognizing that real-world riding conditions create crosswinds and unique turbulence when turning corners and riding in groups, Willières softened some of the frame's surfaces.

The Philante retains its distinctive NACA airfoil and cam-tail carving on the upper seat tube; Wilier also designed custom bearings in the headset to allow for internal cable routing without an oversized head tube. The fully rounded Filante headtube has a narrower profile than many D-shape rivals.

Compared to the Cento10, the Filante has a slightly softer angle in key aero features and a 7mm wider fork. Like other Wilier frames, Filante's fork legs are generously spread, which not only increases tire choice but also improves aerodynamics, primarily by reducing spoke turbulence.

The wide fork structure is intentionally matched to the external dimensions of the rear triangle, creating a harmonious aero profile. To balance the effects of the disc brakes used in full braking, the material composition of the Filante forks is asymmetrical. This is an application of the asymmetrical rear triangle design that Willier has used for years to compensate for drivetrain forces.

Offering six frame sizes in five handlebar dimensions, Willier is committed to providing a similar riding feel on all Philante frames, regardless of size. This is achieved by using different tube dimensions for each size.

For those who want to build their own unique Philante SLR, the frameset (with handlebars and seatpost) is available for €5,000.

The most affordable Philante SLR factory build is equipped with Shimano's Ultegra Di2 8070 groupset, with RS170-spec wheels, also from the Japanese brand, for €7,200. Upgrading to a Dura-Ace Di2 9170 and Willières ULT38KT wheels with ceramic speed bearings costs €11,300. A frame and wheelset with SRAM's eTap AXS would be €11,400.

For riders who believe Italian road bikes should always be finished with Campagnolo, there are two Super Record EPS builds for €12,400 (Bora WTO 33 wheels) and €11,200 (rolling Shamal C21).