Wilier Triestina Verticale SLR Force AXS 2x12 E1 PM Kleos 42 2026

The lightest bike ever

Lightness must be controlled. Making a lightweight frame is relatively simple, but making a lightweight one with top-notch performance and riding qualities requires a strong legacy. The Verticale SLR is the best example of what they have been, and of what they do best: a racing bike that has improved weight over the Wilier 0 SLR - the previous climbing model made by Wilier - by almost 10% (9.73% on the kit comprising frame, fork, handlebars, and seatpost). Lighter weight, greater responsiveness, improved performance levels. The Verticale SLR is today the best calling card for Wilier, the new generation of the best Italian bicycle manufacturers.

Outstanding carbon
When they address the frame of a climbing bike, the first aspect they need to consider is the raw material used. Using the highest quality composite materials is the starting point to give rise to a project that focuses fully on top-level performance. For the Verticale SLR, they specifically used 3 types of fibres produced by Toray, a Japanese multinational and leader in the carbon fibre market, especially T800, T1100, and M46JB.

New integrated V Bar
The handlebar is carbon monocoque and features a brand-new design, weighing approximately 310 grams. Its standout feature is the special shape with differentiated handlebar width: when viewed from the front, the grip area at the controls is narrower than the lower section of the handlebar. The distinctive shape was designed to provide practical solutions for professional riders, who, from season to season, strive for optimal aerodynamic performance while staying within the limits set by UCI regulations. There is a trend to narrow it while nevertheless having a wider low grip to guarantee better handling, which is a key requirement when sprinting. The delta between the top and the bottom is 30 mm.

Brake sheath routing
They also worked on the high part of the grip, particularly as regards the routing of the brake sheaths. The contact surface has been increased to improve the passage of the sheath inside the handlebar.

Integrated cyclocomputer mount
The pursuit of a reduced overall handlebar weight has led us to develop a purpose-designed cyclocomputer mount stick, made entirely of aluminium which, unlike its predecessors, fits entirely in the handlebar. It is secured thanks to two through holes which have enabled us to optimise weight further compared to previous models. At the rear, in the fork-sleeve handlebar stem area, you can see that the tightening system is different . The screws tighten on two aluminium inserts, a solution that makes replacement easier in the tightening part, while also improving the distribution of force on the composite part. The rear of the stem is finished with a rubber insert to prevent dirt and sweat from penetrating the handlebar, thereby preserving its reliability in the long run.

Aerodynamic performance
Although aerodynamic efficiency was not the primary objective when developing the Verticale SLR (a goal already excellently achieved by Filante SLR for the aero segment), they have noted that the CDA (Drag Area Coefficient) has improved with the Verticale SLR, effectively making it more aerodynamic than the Wilier 0 SLR. The CDA falls by almost 2% at 50 km/h speeds and up to 4% at higher speeds, such as 70 km/h. To convert this data into more understandable terms, this translates to a time saving of 2 seconds per kilometre at 50 km/h and of 3 seconds at 70 km/h.
However, they know that the data collected in the wind tunnel from the bicycle alone does not reveal the full extent of this aerodynamic success. Only 10% of overall air resistance is due to the bike; 1% is due to the wheels and the rest - a vast majority - to the cyclist. This is why they focused on new geometries and the innovative V Bar monocoque handlebar, solutions that allow the cyclist to adopt a more aerodynamic and efficient position. The reduction in CDA, keeping the cyclist and riding position constant, is 5.7% at 50 km/h and rises to 8.7% at 70 km/h.

Seatpost with light or integrated number
They redesigned the seatpost with two possible setbacks: 0° and -15°, both are equipped with two special holes for the installation of a rear light or to affix race numbers.

New seatpost clamp system
They fine-tuned the fastening device which no longer fastens from the top but diagonally from the bottom. This tightening system has allowed us to lighten the weight at that point of the frame with respect to the 0 SLR.

New derailleur coupling
Another major and fundamental new feature is the front derailleur coupling, which for the Verticale SLR is no longer riveted to the frame and has become repositionable. This is how they succeeded in cutting down the weight of the coupling and having two possible configurations allowing the mounting in one case of a 50-34 or 53-39 compact crankset and in the other an oversized crankset with up to 55-56 teeth as required by the World Tour teams.

Asymmetrycal fork
The challenge was to improve the weight and performance of an apparently simple component. They retained the characteristic asymmetrical shape. The sections on the rod housing the brake calipers have been oversized, whereas the right seat stay sections are lighter and thinner. A new feature is the left fork stay which is twisted. This shape is an improvement for two reasons: improved orientation of the carbon fibres during rolling (to respond better to stresses) and the improved resistance to forces exerted by the calipers during braking.

Tech Specs

• Frame: VERTICALE SLR - TORAY T800+T1100 M46JB CARBON MONOCOQUE
• Fork: VERTICALE SLR - TORAY T800+T1100 M46 JB CARBON MONOCOQUE
• H-Bar: V BAR INTEGRATED CARBON CUSTOM MADE + GARMIN/WAHOO MOUNT
• H-Bar producer's weight: 310 g +/- 5%
• Drivetrain model: SRAM FORCE AXS E1 2x12 + POWERMETER
• Headset: CUSTOM SUPERSLIM 1-1/4" UPPER BR | FSA MR137 1-1/4" LOWER BR
• Shifters: SRAM FORCE AXS ED-FRC-E1
• Brakes: SRAM FORCE AXS ED-FRC-E1
• Rotors: SRAM PACELINE RT-PLN-A1 160 / 160
• Front derailleur: SRAM FORCE FD-FRC-E-E1
• Rear derailleur: SRAM FORCE AXS RD-FRC-E-E1
• Crankset: SRAM FORCE FC-FRC-P-E1 48-35
• Bottom bracket: SRAM DUB PRESS FIT 86.5 ROAD
• Cassette: SRAM FORCE CS-XG-1270-E1 10-33T
• Chain: SRAM FORCE CN-FRC-E1
• Tyres: VITTORIA CORSA PRO 700X28c
• Saddle: PROLOGO NAGO R4 PAS TIROX RAILS 137mm
• Wheelset: MICHE KLEOS 42 CARBON
• Seatpost: WILIER FILANTE CARBON CUSTOM MADE -15 mm
• Axle: MICHE THRU AXLE LIGHT 12X119.5F 12X166.5R
• Frame producer's weight: 720 g +/- 5%
• Fork producer's weight: 320 g +/- 5%

Prices, specifications and photos included may change during the season without notice

Please note: The bikes are assembled according to the manufacturer's specifications with default features according to size. For any assembly requests or specifications other than the basic ones, please contact our costumer service directly before purchase.