It has been 22 years since the first Diamante was released. 22 years in which Diamante has gone through 8 evolutions to become what it is today: the most Basso bike of all.
Our most long-running bike, stainless like any self-respecting diamond. A process of constant and meticulous improvement, often working on invisible details, capable of combining innovation aimed at the future and the legacy of over 45 years of Basso.

Leaving the starting point to go elsewhere, outside your own schemes, to explore and then come back enriched, so as to evolve what you started from. A circular movement that becomes a spiral as it perfects itself, enclosing the past and the future. The spirit of Basso flows in the circular tubes of the Diamante frame. A shape that is not just an aesthetic solution but the research to obtain the best performance from a material, carbon.

Devotion to the slopes

Today Diamante confirms its vocation for climbs and descents. Careful engineering work has made it possible to further reduce the weight by over 200 grams, allowing the complete bike assembly to remain easily under the UCI weight limit (6.8 kg). A bicycle without an extra gram, designed to make each ride an exciting experience, an opportunity to challenge your limits.

Contemporary classic

A unique design, the result of extremely complex engineering, refined over the years detail by detail. A timeless aesthetic, capable of interpreting the contemporary. The search for the balance between lightness and stability, making the most of the characteristics of carefully hand-crafted carbon. The thickness of the tubes has been meticulously studied to give lightness and reactivity when climbing and stability when descending, even at high speeds.

Ride, Perfected

Stable, responsive, light, and playful. Diamante is a versatile road racing bike, designed to thrive in the most challenging ups and downs. A geometry that has been refined over the decades thanks to the kilometers traveled and the expertise in the manual processing of carbon, capable of achieving absolute performance through cutting-edge technological solutions. The result is an intense and engaging riding experience, ready to excite.

The golden rule of Basso engineering

We meticulously study carbon to enhance its characteristics through its shape. In the areas where energy is generated and discharged – the bottom bracket and steering area -, the circular shape, in addition to reducing the thickness and weight of the tubes, gives greater torsional rigidity, so that all the pedaling energy translates into progression and riding precision. This solution allows to obtain greater lightness, rigidity and control, with the result of not losing power and acquiring stability.

  • Fade Opal White
  • Candy Red
  • Stealth


How do you redefine a classic? By obsessively working on details, considering each arrival point as a new starting point. Diamante introduces improvements in the geometry that make it more performing uphill and downhill. Every good bike fit starts with choosing the correct frame size for you. This will allow you to benefit best of the bike’s performance and comfort for an efficient riding position.
Seat Tube (A1)450 mm480 mm510 mm530 mm560 mm580 mm610 mm
Top Tube (B)505 mm515 mm525 mm545 mm560 mm575 mm590 mm
Reach (R)374.9 mm375.2 mm378.6 mm384.8 mm386.9 mm389 mm390.7 mm
Stack (S)521.7 mm521.8 mm546.2 mm558.8 mm584.3 mm608 mm632.2 mm
Seat Tube Angle (C)76°75°75°74°73.5°73°72.5°
Steering Tube Angle (D)71.3°71.4°71.6°71.9°73.1°73.1°73.6°
Chain-Stay Length (E)400 mm400 mm400 mm400 mm402 mm402 mm406 mm
BB to Fork Length (F)579.3 mm579.4 mm589.1°596.1°593.5°602.7 mm606 mm
Head Tube (H)101 mm101 mm126 mm138 mm155 mm180 mm203 mm
Handlebar width C/C (M)400 mm400 mm420 mm420 mm420 mm420 mm440 mm
Stem length (N)90 mm90 mm100 mm100 mm110 mm120 mm120 mm

Integrated Handlebar Levita

The Diamante tip for unprecedented handling: stiff, light, and ergonomic. Levita redefines the concept of riding precision in a heap of technology and aesthetic purity.

Frame weight
760 g in size 53
Toray 40t and 30t, Faw 50
up to 32 mm wide
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Integrated Cables Headset to offer efficient cable routing that gives precise and smooth steering movement even on smaller sizes


High seat stays attachment to provide rigidity and direct power transfer without dispersion.

Diamante Seatpost

Specific seatpost with 2 different setback options, thanks to the 3B Clamp System Gen II (Pat.).

A modular and totally hidden solution that is invisible on the frame, intertwining technological and aesthetic innovation.


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