Basso Diamante Disc 2026 with Shimano Dura-Ace Di2 and DT Swiss Arc 1100: Italy's ultimate climbing machine.

In the circular tubes of the Diamante frame flows the spirit of Basso. A shape that is not merely aesthetic, but the result of engineering research aimed at maximizing carbon fiber performance. Light, stiff, precise — the Diamante is the road racing bike for riders who live for the climb. Learn more at the Basso Bikes Official Website.

Over 200g saved. Well below the 6.8 kg UCI limit.

The Diamante's devotion to climbing translates into real numbers: over 200 grams shed compared to the previous generation, keeping the complete bike well under the UCI weight limit. Every pedal stroke becomes an opportunity to push beyond your limits. At the bottom bracket and head tube, the circular design reduces thickness and weight while increasing torsional rigidity — less energy lost, more control, more speed.

Optimized geometry for climbing and descending fast.

The shortened rear triangle delivers low-speed responsiveness, while the longer front center ensures high-speed stability on descents. The Levita integrated handlebar redefines steering precision with a perfect blend of technology and aesthetics. The dedicated seatpost offers two setback options and the fully concealed 3B Gen 2 locking system, seamlessly integrated into the frame.

Shimano Dura-Ace Di2 + DT Swiss Arc 1100: built to match a climber.

Shimano Dura-Ace Di2 delivers flawless electronic shifting and smooth power transfer in every condition. The DT Swiss Arc 1100 wheels complete the build with race-level stiffness and low weight. A combination built for riders who accept no compromise. Explore more options in our Complete Groupsets section and browse our Complete Wheels.

• Handcrafted carbon fiber frame with optimized circular tubes
• Complete bike well under the 6.8 kg UCI limit
• Levita integrated handlebar
• Seatpost with concealed 3B Gen 2 locking system
• Shimano Dura-Ace Di2 12s groupset
• DT Swiss Arc 1100 wheels
• Short rear triangle and longer front center geometry

For sizing support, custom configurations, or any enquiry, contact our Customer Support.