If the diamond is an example of perfection then the DIAMANTE SV warrants its name as it encompasses all of the expertise the Basso brand has accumulated in over 40 years of experience constructing fine racing frames by hand. In creating fine works of engineering that are beautifully functional and functionally beautiful the SV becomes the crown jewel of the Basso line. The SV is the racer’s race bike as it strives to offer the rider the best, most efficient riding experience in terms of handling, reactivity, aerodynamic efficiency, structural efficiency and reliability to ensure perfomance capable of creating not only excitement but the confidence that a finely crafted frame can…time and time again.

Shaped to make you faster

The Diamante SV looks fast because it is fast. Every element of the SV has been meticulously studied to ensure the best in versatile aerodynamic design, reactive and efficient construction and race ready geometry...all to guarantee a ride that is worthy of the Super Veloce moniker. The SV tube shapes are designed around not only structural integrity and efficient construction that translates every watt of the riders energy into forward motion but also take a strong focus on aerodynamic penetration for real world performance. As a result, the Diamante SV is not only one of the most structurally efficient frames available but one that is capable to reduce wind resistance thanks to its kammtail design. SV means fantastic power transfer in addition to less energy required to overcome wind resistance.

Redefining Ride Quality

Extreme speed comes from a blend of great handling, aerodynamic performance and efficient power transfer. The oversized bottom bracket couples with the large downtube and stiff chainstays to allow the Diamante SV to transfer every watt of your energy into forward movement. While the efficient structure aids in optimum power transfer it also combines with Basso’s meticulously studied performance geometry to guarantee a ride quality like you have never experienced before. Curves feel straighter, brakes feel less necessary and descent after descent will find you discovering the joy of cycling and the pleasure of speed all over again.


First impressions are rarely wrong and whether you are merely looking at or riding the Diamante SV the notion of elegant and efficient extreme speed comes to mind. That notion does not fall short as more miles atop the beautifully crafted Basso frame only serve to confirm your original idea. Experience Basso, Experience Super Veloce. Made to race, made to win, made to last, made by Basso.

A1 Bike Size 45 48 51 53 56 58 61
B Top Tube (mm) 505 515 525 545 560 575 590
R Reach (mm) 381 382 386 393 395 397 396
S Stack (mm) 493 493 518 530 557 580 614
C Seat Tube Angle (°) 76 75 75 74 73.5 73 72.5
D Steering Tube Angle (°) 71.8 71.8 72 72.3 73.5 73.5 74
E Chain-Stay Lenght (mm) 400 400 400 400 402 406 406
F BB to Fork Lenght (mm) 574 574 583 592 590 599 602
G Slope (mm) 70 43 38 34 33 38 45
HT Headtube (mm) 90 90 115 127 145 169 203