Wilier presents the new Filante SL ID2: same aero performance as the WorldTour version, 34mm tire clearance, 1x/2x compatibility, and lower prices starting at €4,800.

The dream of riding a WorldTour-level bike without having to take out a second mortgage just got a little closer to reality. Almost a year after launching the top-of-the-line SLR ID2, Wilier Triestina has played its hand with the new Filante SL ID2, a version designed to broaden its reach and serve as the "gateway" into the brand's aerodynamic ecosystem.

The promise on paper is bound to tempt any racer: the bike inherits the exact same aerodynamic profile and racing geometry as the professional riders' model, changing only the carbon fiber layup to lower the retail price. Sure, it’s not a budget bike, but the blow to your wallet is decidedly softer compared to its big sister.

📦 Quick Facts Box

    Identical Aerodynamics: Same watt savings as the WorldTour version (about 14 watts at 40 km/h compared to the previous generation).

    Modern Tire Clearance: Space for tires up to 34 mm, aligning with current WorldTour trends.

    Maximum Drivetrain Versatility: Compatible with both traditional 2x groupsets and modern SRAM 1x13 setups thanks to the UDH derailleur hanger and removable front derailleur mount.

    Entry Price: Starts at €4,800 for the build featuring Shimano 105 Di2.

WorldTour Performance and Aggressive Geometry

From a purely aerodynamic standpoint, the SL ID2 makes no compromises. It retains the fluid-dynamic engineering that made the ID2 platform famous, guaranteeing that ~14-watt advantage at 40 km/h that makes all the difference when pushing hard on flats or rolling terrain.

Its racing vocation also shines through in the geometric figures: in a medium size, we find an aggressive 541 mm stack and a 992.9 mm wheelbase. A combination that—as highlighted by tests on top-tier models—delivers a planted front end, quick responsiveness during pace changes, and incredible stability when speeds climb.

Modern Details: 34mm Tires and UDH

Engineered for the demands of modern cycling, the Filante SL ID2 opens the door to generous tire sections, accommodating rubber up to 34 mm wide to boost comfort and grip without penalizing airflow.

Great attention has also been paid to drivetrain modularity: the bike adopts the universal UDH hanger at the rear and allows the front derailleur mount to be completely removed, making it fully compatible with SRAM's 13-speed single-chainring setups as well.

The package is completed by the new R-Bar integrated cockpit—featuring a 3 cm flare in the drops for better ergonomics and control—and the Aerokit SL system, which includes an integrated bottle cage and computer mount (with the option to upgrade to the Aerokit SLR for maximum clean routing).

Builds and Official Prices

The new Wilier Filante SL ID2 is offered in four colorways and as many standard builds (all inclusive of Aerokit SL and computer mount):

    Shimano 105 Di2 with Vision SC 45 i23 carbon wheels → €4,800

    Shimano Ultegra Di2 with Vision SC 45 i23 carbon wheels → €5,599

    SRAM Force XPLR 1x13 with Miche SWR 50 carbon wheels → €6,200

    SRAM Force AXS E1 2x12 with Miche SWR 50 carbon wheels → €6,200

⚖️ Pros and Cons according to Cyclonline

PROS:

    WorldTour Aero at a Lower Price: Inherits the exact same CFD study and flow optimization of the top-of-the-line SLR version, saving about 14 watts at 40 km/h.

    Total Drivetrain Versatility: The rear UDH mount and removable front derailleur make it compatible with both classic 2x systems and the latest SRAM 1x13 setups.

    34mm Tire Clearance: Generous room to run wide tires, ensuring comfort and traction even on rough pavement.

CONS:

    Not a Budget Entry-Level: €4,800 for the entry-level 105 Di2 build is still a significant investment, albeit competitive for the ultra-high-end aero segment.

    Undeclared Weight: Wilier has not yet officially released the weight of the new SL ID2 frame at launch.

🎯 Who Is It For / Who Is It NOT For?

    It is for you if:

You dream of an uncompromised aero bike for criteriums, gran fondos, or fast rolling routes, but want to leverage the SL carbon layup to save thousands of euros compared to pure WorldTour models.

    It is NOT for you if:

You are looking for a pure ultra-lightweight climbing bike for major alpine passes, or if your bicycle budget stops at the €3,000 threshold.

❓ FAQ - Frequently Asked Questions

What is the main difference between the Wilier Filante SLR ID2 and the new SL ID2?

The core difference lies in the carbon fiber layup used for the frame. The SL ID2 maintains the exact same aerodynamic design and geometry as the WorldTour SLR model, but utilizes a different fiber distribution to keep retail costs down.

How much does the new Wilier Filante SL ID2 cost?

Launch prices start at €4,800 for the version equipped with the Shimano 105 Di2 group and Vision SC 45 i23 carbon wheels, scaling up depending on the build to €6,200 for the SRAM Force versions.

What is the maximum tire width you can install?

The Filante SL ID2 is engineered for "modern cycling" and offers tire clearance that accommodates pneumatic tires up to 34 mm, ensuring increased comfort and versatility across any type of asphalt.