Wilier Triestina Rave SLR ID2 gravel bike review: Addictively fast and unapologetically racey

Wilier Triestina has unveiled the second-generation Rave SLR ID2, a gravel bike explicitly designed for racing. Unlike its predecessor, which aimed to straddle both road and off-road use, the new model focuses squarely on the gravel race scene, targeting events such as Unbound. The frame features a striking green paint job and an aerodynamic profile developed through Computational Fluid Dynamics (CFD), promising an 8.9 per cent reduction in air resistance. This translates to a significant time saving over a typical race distance, reflecting Wilier’s commitment to blending speed with gravel-specific performance. The Rave SLR ID2’s design incorporates several technical advancements to enhance aerodynamics and stiffness without adding excessive weight. The downtube adopts a NACA profile that smooths airflow around the water bottle, while the fork and seatstays draw inspiration from Wilier’s Supersonica SLR TT bike to limit turbulence. Despite these aero enhancements, the frame weight has only increased marginally by 120 grams compared to the original model. Additionally, the chainstay has been reinforced with extra carbon, improving stiffness by nearly 12 per cent, with a size-specific carbon layup ensuring consistent ride quality across all frame sizes. Tyre clearance has been expanded to accommodate up to 52mm tyres, allowing riders to fit wide gravel tyres that contribute to speed and comfort on varied terrain. The stock build includes 50mm tyres mounted on Miche Graff Aero 48 wheels, balancing lightweight components with robust gravel capability. However, some compromises remain, such as a recessed seat clamp that complicates seatpost adjustments and the lack of internal storage options. The bike also features a Press Fit bottom bracket and UDH dropouts, aligning with modern gravel bike standards. While the Rave SLR ID2 excels in handling and responsiveness, its stiff frame and stock tyres may feel unsettled on rougher gravel surfaces, which could deter riders seeking more comfort. The bike’s price point, around £8,900, places it at the premium end of the market, raising questions about value for money. Racers might also prefer a larger chainring to better suit high-speed terrain, indicating that some customisation could be necessary to optimise performance fully. Wilier’s renewed focus on gravel racing with the Rave SLR ID2 signals the brand’s intent to compete firmly in this rapidly evolving discipline. By prioritising aerodynamics, stiffness, and tyre clearance, the bike addresses many demands of gravel racers, although it retains some quirks from the previous generation. As gravel racing continues to grow, the Rave SLR ID2 positions Wilier as a serious contender, offering a machine that is both fast and race-ready, albeit at a premium price.