The future of gravel racing is here: Wilier’s all new Rave SLR ID2 is aero optimised with 52mm tyre clearance, and designed exclusively for 1x drivetrains

The legendary Italian bike manufacturer Wilier Triestina has officially launched the Rave SLR ID2, a gravel race bike built for those wishing to compete at the highest levels. Compared to its predecessor, the ID2 introduces several key updates: increased tyre clearance up to 52mm, a claimed 8.9% reduction in aerodynamic drag, and a dedicated 1x drivetrain setup. While still firmly performance-focused, prices now start from a more affordable €4,400. 

> Discover the all new Wilier Rave SLR ID2

 

 

 

 

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With 119 years in the bike-making game, Wilier Triestina has an enviable legacy of Italian craftsmanship. In 2021, the brand introduced the Rave SLR, a high-performance gravel race bike that claimed its place at the top of its lineup. Now, the Italian brand returns with the Rave SLR ID2, an evolution that promises to bring a new dimension to gravel racing.

The original Rave SLR was built for speed and agility, earning its reputation with victories at events like the Serenissima Gravel, Traka 200, and Unbound Gravel. It set a high benchmark, and the new Rave SLR ID2 is engineered to surpass it, developed in collaboration with professional gravel riders.

According to Wilier, the latest model draws inspiration from its predecessor, retaining the high-end SLR carbon frame construction, but has been reimagined to be even faster, with a focus on pure gravel racing performance.

While the Rave SLR ID is undoubtedly a race-ready machine, Wilier has designed it to appeal to a broad spectrum of gravel riders, from podium-chasing athletes competing in UCI Gravel Series events, to adventure cyclists looking for a fast and capable bike. 

Here are all the key details…

Tyre clearance of up to 52mm

One of the most notable updates on the Rave SLR ID2 is its increased tyre clearance, now accommodating widths of up to 52mm, while still maintaining 6mm of space between the tyre and frame. This marks a significant increase from the previous model’s 42mm limit.

Explaining the rationale behind the change, Wilier says, “Recent studies have shown that wider tyres increase the contact patch and influence the natural damping of vibrations, thus reducing energy loss.

“The combined effect of low pressure and a large cross section allows the tyres to “roll” better, improving overall performance and, therefore, speed”. 

Reduced air resistance to the tune of 8.9% 

After months of wind tunnel and simulation work, Wilier conceptualised new tube shapes for the Rave SLR ID2, reducing air resistance by 8.9% over the previous model.

At 35km/h, this equates to a power saving of 5.3 watts, translating to over 50 seconds saved on a 70km ride at a race-average 350 watts — a benchmark based on efforts from professional athletes, though riders at all levels can benefit from the improved efficiency.

The bike’s standout aerodynamic features include a NACA-profiled down tube that widens to shield water bottles from wind, plus a fork design inspired by Wilier’s Supersonica SLR with wide stays optimised for large tyres, and fully integrated cabling. 

Compatible with 1x groupsets only 

Another noticeable change from the previous model is the absence of the front derailleur. The brand explains that eliminating the front mech reduces weight, improves aerodynamics, and simplifies both assembly and maintenance, as well as avoiding potential complications on muddy or rough terrain. 

To ensure riders still have access to a wide gear range, the Rave SLR ID2 is compatible with cassettes with up to 52 teeth. The frame also features a UDH (Universal Derailleur Hanger), for easier maintenance and simpler shifting.  

Geometry 

The Rave SLR ID2 is available in six sizes, and according to Wilier, it features dedicated gravel racing geometry, with a compact wheelbase and short rear triangle, designed to deliver rapid acceleration and confident, precise handling.

Wilier employs a “balanced design” approach during the frame’s construction, meaning that desired stiffness targets are set for each size, and every individual tube is redesigned accordingly. This ensures consistent mechanical performance across the entire size range from XS to XXL. providing all riders with an equally responsive ride. 

We can see that the medium-sized Rave SLR ID2 comes with a 54.9cm top tube, 50cm seat tube, and 13.1cm head tube. The frame angles are 70.8° (head angle) and 75° (seat angle). The stack height is 561mm while the reach is 387mm. 

The geometry remains largely the same when compared to its predecessor with a 54.5cm top tube, 50cm seat tube, and 13.4cm head tube. The frame angles were 71° (head angle) and 74° (seat angle). The stack height was a bit lower at 551mm, and the reach slightly shorter at 384mm.

Specs, weight and prices 

The new Rave SLR ID2 is offered with a choice of two cockpit configurations – the integrated F Bar or the Stemma S2, and a wide range of build options priced from €4,400 to €9,900.

The frame itself weighs a claimed 990g, while the flagship build – featuring the SRAM Red XPLR 1×13 groupset and Miche Graff Aero 48 wheels – weighs in at a claimed 8.10kg total. 

Rave SLR ID2 + F Bar

• SRAM Red XPLR AXS 1×13 €9,900
• SRAM Force XPLR AXS 1x €7,800
• Shimano GRX Di2 €6,600

All include Miche Graff Aero 48 wheels 

Rave SLR ID2 + Stemma S2

• SRAM Rival XPLR AXS 1x €5,600 / €4,900
• Shimano GRX Di2 €5,600 / €4,900
• Shimano GRX 1×12 €4,900 / €4,400

​All available with either Miche Graff Allroad or Miche Graff XL wheels. 

All models are available in four bold colourways: pixel green, glitch black, neon purple and byte cream. All are inspired by the energy of underground culture and the digital icons of the 1990s, says Wilier. 

You can find out more about the Rave SLR ID2 on Wilier’s website.