Description
The Basso Diamante Shimano Ultegra Di2 is Basso’s lightweight race bike built with Shimano Ultegra Di2 R8170 12-speed. The Basso Diamante is the bike that best sums up Basso. First launched 26 years ago and now in its eighth generation, it is a light, responsive race bike built for climbing and descending. It can be built right down to the UCI 6.8 kg weight limit. Questions about sizing or spec? Contact us and we’ll help you choose.
Basso Diamante Shimano Ultegra Di2 at a glance
- Frame: Basso Diamante Disc full carbon, round-tube design
- Groupset: Shimano Ultegra Di2 R8170 12-speed
- Gearing: 52-36 or 50-34 chainrings, 11-34 cassette
- Cockpit: Basso Levita integrated carbon bar and stem
- Sizes: 45, 48, 51, 53, 56, 58, 61
- Price: $9,899–$14,399 depending on wheels
Shimano Ultegra Di2 delivers the same 12-speed semi-wireless shifting as Dura-Ace for a little extra weight, making it the sweet spot of Shimano’s range.
Why ride the Basso Diamante?
- Built for the hills – over 200 g lighter than before, with sharp, stable handling on fast descents
- Round-tube design – Basso’s circular tube shapes add torsional stiffness at the bottom bracket and head tube
- Refined race geometry – honed over eight generations and decades of racing
- Hand-finished carbon – a timeless, understated Italian look
Choose your wheels
- DT Swiss ARC 1100 55mm – $14,399
- Fulcrum Wind 57mm – $12,399
- No wheels – $9,899 (frame and groupset only, ready for your own wheels)
Colours
Available in White Fire, Prism and Pacific Lime. Tell us your colour when you enquire.
Built to order in Italy
Every Basso is built to order in Italy, then assembled and fitted in our Port Melbourne workshop. Lead times are usually 4–8 weeks, depending on the model. Every bike includes our PMC Advantage fitting and follow-up service.
Compare other Diamante builds: Basso Diamante – SRAM Red AXS, Basso Diamante – Shimano Dura-Ace Di2, Basso Diamante – Campagnolo Record 13, or the Basso Diamante frameset. Browse all Basso bikes or read more on the Basso website.
Helpful guide: Basso Bikes Melbourne: SV, Diamante, Astra & Palta III Guide











