Supersonica SLR Shimano Dura-Ace Di2 R9270 2x12sp Triathlon + Powermeter

The Supersonica SLR is Wilier’s current top-tier time trial and triathlon platform, developed as a clean-sheet replacement for the Turbine SLR and brought to market for the 2025 model year. Its defining feature is not just aerodynamic shaping, but a highly integrated rider-interface system built around position optimization. Wilier designed the bike to serve both UCI-constrained time trial use and more aggressive triathlon setups, with a cut-to-fit integrated seatmast, a saddle-rail arrangement that can accommodate either legal setback or a farther-forward position, and a cockpit architecture that supports custom extensions made from forearm scans as well as Profile Design-compatible solutions.

This generation is also notable for the extent to which Wilier treats the bike as a complete aerodynamic system rather than only a frame. The dedicated 550 ml hydration solution, removable front-derailleur mount and cover, and anti-rotation steering assembly all point to a platform intended to be configured precisely for event type and rider preference. Wilier cites a roughly 16% aero-efficiency improvement over the previous Turbine SLR in its own comparative wind-tunnel testing, and the published frame details—1450 g claimed for the frame and 550 g for the fork—show that the priority is outright speed and integration rather than chasing the lightest possible chassis. In the market, the Supersonica SLR sits firmly in the premium superbike category: a specialist machine for riders who want a modern, highly adjustable aero platform with bespoke fit options rather than a simpler, more conventional TT bike.