Wilier Filante SLR ID2 Dura-Ace Di2 Bike with CeramicSpeed Bearings

Description

The Wilier Filante SLR ID2 Dura-Ace Di2 Bike w/CeramicSpeed Bearings is Wilier’s flagship aero road bike, built with the brand’s most advanced carbon technology and spec’d to minimize mechanical friction at every contact point between rider and road. Wilier has been building road bikes in Bassano del Grappa, Italy since 1906, and the Filante SLR ID2 represents the current peak of that lineage — a monocoque carbon aero machine that pairs the HUS MOD+ Crystal Liquid Polymer frame with a complete Shimano Dura-Ace Di2 drivetrain and CeramicSpeed bearings throughout both the bottom bracket and the wheelset.

The frame and fork are built from Wilier’s HUS MOD+ carbon — High Ultra Stiffness modulus fiber combined with Crystal Liquid Polymer resin technology, a proprietary formulation that improves the bond between fiber and resin to achieve lower weight without sacrificing structural integrity. The result is a monocoque chassis that delivers the stiffness a sprinter and climber both need, with the aerodynamic tube profiles the ID2 platform is defined by. Fully internal cable routing, a zero-setback custom carbon seatpost, and Wilier’s Superslim custom headset bearings keep the external surfaces of the bike as clean as the aero development team intended. Maximum tire clearance extends to 700x34mm — enough for heavier training tires or mixed-surface days without limiting the primary road race setup.

What sets this build apart from a standard Filante SLR is the system-wide application of CeramicSpeed bearings. CeramicSpeed ceramic rolling elements are found in the Miche Integrale RD Pressfit bottom bracket and in the hubs of the Miche Kleos 50 carbon wheelset — both critical friction points in the drivetrain. Reducing bearing friction at the BB and at each wheel hub compounds across the full ride; on long efforts, the smoothness is perceptible and the efficiency advantage is measurable. The Miche Kleos 50 wheels are 50mm deep carbon aero wheels built for road racing conditions, paired here with Vittoria Corsa Pro 700×28 tires — one of the fastest road tires available. The F-Bar ID2 integrated carbon cockpit completes the aerodynamic front end, with a built-in mount for Garmin and Wahoo head units that eliminates the need for an aftermarket computer bracket.

Specs at a Glance

• Frame: Carbon Monocoque HUS MOD+ Crystal Liquid Polymer
• Fork: Carbon Monocoque HUS MOD+ Crystal Liquid Polymer
• Headset: Wilier Custom Bearings Superslim
• Seatpost: Filante SLR Carbon Custom, 0mm offset
• Cockpit: F-Bar ID2 Integrated Carbon (stem + handlebar) with Garmin/Wahoo mount
• Drivetrain: Shimano Dura-Ace Di2 R9250 (front and rear derailleur)
• Shifters/Levers: Shimano Dura-Ace Di2 R9270 hydraulic disc
• Crankset: Shimano Dura-Ace R9200 / 50/34
• Cassette: Shimano Dura-Ace R9200 12-speed, 11-30
• Bottom Bracket: Miche Integrale RD Pressfit 86.5 with CeramicSpeed Bearings
• Brakes: Shimano Dura-Ace R9270 hydraulic disc
• Rotors: Shimano CL900 160mm front / 140mm rear
• Wheels: Miche Kleos 50 Carbon with CeramicSpeed Bearings (front and rear)
• Tires: Vittoria Corsa Pro 700×28
• Max Tire Width: 700×34
• Saddle: Prologo Nago R4 PAS Tirox 137mm
• Sizes: XS, S, M, L, XL, XXL
• Colors: Firelight Red, Solar Bronze, Lunar Grey, Eclipse Black, Pure White, Aurora Blue
• Pedals: Not included

Design Benefits

1. HUS MOD+ Crystal Liquid Polymer Carbon: Wilier’s high-modulus carbon specification uses a Crystal Liquid Polymer resin that improves fiber-to-resin bonding at the molecular level — achieving higher stiffness and lower weight than standard resin systems without requiring additional carbon fiber volume. The monocoque construction integrates aerodynamic tube profiles that were developed for the Filante platform across multiple racing seasons.
2. CeramicSpeed Bearings in BB and Wheels: This build applies CeramicSpeed ceramic bearings to both the bottom bracket (Miche Integrale RD Pressfit 86.5) and the wheel hubs (Miche Kleos 50). Ceramic rolling elements have lower friction than steel under load, generate less heat, and maintain their surface quality over extended use. The efficiency gain compounds across every pedal stroke and wheel revolution — it’s one of the most measurable marginal gains available on a production bike.
3. F-Bar ID2 Integrated Cockpit with Computer Mount: Wilier’s F-Bar ID2 is a fully integrated carbon bar and stem with internal cable routing. The built-in Garmin/Wahoo head unit mount is a practical detail that keeps the cockpit clean, eliminates handlebar clutter, and maintains the aerodynamic profile that the rest of the frame works to achieve. It’s the kind of thoughtful integration that makes a difference on long race days.
4. Miche Kleos 50 Carbon Wheelset: Miche’s Kleos 50 wheels are 50mm deep carbon aero wheels built for road racing and training. At this rim depth, they provide meaningful aerodynamic advantage across a wide range of speeds and yaw angles while remaining manageable in crosswinds. The CeramicSpeed hub bearings reduce rolling resistance throughout the wheel’s service life.
5. Shimano Dura-Ace Di2 R9250/R9270: The current-generation Dura-Ace Di2 is wireless, 12-speed, and hydraulic disc — precision shifting under race loads, consistent braking in all conditions, and full integration with Shimano’s cycling computer ecosystem. The 50/34 crankset and 11-30 cassette provide a gear range suited to both racing and varied training terrain.

Final Take

The Wilier Filante SLR ID2 with Dura-Ace Di2 and CeramicSpeed bearings is a complete aero race bike from one of cycling’s oldest Italian manufacturers — with a spec sheet that doesn’t leave efficiency on the table. HUS MOD+ carbon, CeramicSpeed at the BB and wheels, an integrated cockpit with head unit mount, Miche Kleos 50 carbon wheels, and Vittoria Corsa Pro tires constitute a race-ready setup with no obvious gaps. Six color options and a full size run from XS to XXL make it one of the most accessible flagship-level aero bikes available.

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