Basso Diamante
Diamante — 22 Years of Evolution, the Most Basso Bike of All
Diamante
Twenty-two years and eight evolutions since the first Diamante, arriving at what Basso itself calls "the most Basso bike of all." A classic horizontal top tube and long seat stays give it a timeless silhouette — and underneath, the character of a racing bike built specifically for climbing and descending.
Where SV is an aero all-rounder built for speed and versatility, Diamante is a climber, built around Basso's lightest frame ever (760g, size 53) for the mountains. Stable yet light, with a playful edge to its handling — reactive on the way up, composed at high speed on the way down. Every tube's wall thickness is engineered individually to deliver both.
Frame
Built with Toray 40T and 30T carbon plus FAW 50, the Diamante frame weighs just 760g (size 53) — the lightest frame Basso has ever made. Circular tube shapes at the bottom bracket and steering area deliver high torsional rigidity, converting pedaling power directly into forward motion. Easily clears the UCI complete-bike weight limit (6.8kg) while balancing climbing responsiveness with high-speed descending stability. Available in 7 sizes, clears tires up to 32mm. Designed, painted, and assembled at Basso's own facility in Bassano del Grappa. Frame kit includes fork, headset, and dedicated seatpost.
Choose Your Groupset and Color
Select a groupset, then tap a color swatch to see how the bike looks. Size and cockpit can be customized on the detail page after you choose.
Diamante
Built to Match the Climb
Three refined colorways that carry Diamante's timeless silhouette.
Cockpit
Diamante's signature integrated cockpit, Levita, brings together stiffness, light weight, and ergonomics — sharpening the bike's agile handling even further.
Levita
An integrated handlebar designed specifically for Diamante, combining stiffness, light weight, and ergonomics for precise handling. 330g (110mm × 420mm).
Geometry
Units: mm, angles in degrees
| Size | 45 | 48 | 51 | 53 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|---|
| Seat Tube (A1) | 450 | 480 | 510 | 530 | 560 | 580 | 610 |
| Top Tube (B) | 505 | 515 | 525 | 545 | 560 | 575 | 590 |
| Reach (R) | 374.9 | 375.2 | 378.6 | 384.8 | 386.9 | 389 | 390.7 |
| Stack (S) | 521.7 | 521.8 | 546.2 | 558.8 | 584.3 | 608 | 632.2 |
| Seat Tube Angle (C) | 76° | 75° | 75° | 74° | 73.5° | 73° | 72.5° |
| Head Tube Angle (D) | 71.3° | 71.4° | 71.6° | 71.9° | 73.1° | 73.1° | 73.6° |
| Chain-Stay (E) | 400 | 400 | 400 | 400 | 402 | 402 | 406 |
| BB to Fork Length (F) | 579.3 | 579.4 | 589.1 | 596.1 | 593.5 | 602.7 | 606 |
| Head Tube (H) | 101 | 101 | 126 | 138 | 155 | 180 | 203 |
| Handlebar Width (M) | 400 | 400 | 420 | 420 | 420 | 420 | 440 |
| Stem Length (N) | 90 | 90 | 100 | 100 | 110 | 120 | 120 |
The diagram below shows where each measurement is taken. A1: Seat Tube, B: Top Tube, R: Reach, S: Stack, C: Seat Tube Angle, D: Head Tube Angle, E: Chain-Stay, F: BB to Fork Length, H: Head Tube
Diamante — Build Yours
Talk to us about groupset, color, and size.
Delivered directly from Bassano in 4–6 weeks.