Round-tube philosophy
Basso deliberately uses round tube shapes at the BB and head tube for higher torsional stiffness without extra weight.
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Cords Cycles / Basso / The component dossier
Basso Diamante
Estimate incl. VAT
€3,000 – €3,500
Classic round-tube climbing frame, 26 years and 8 evolutions, 760 g carbon frame (size 53), tyre clearance up to 32 mm, build can meet UCI weight limit.
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Manufacturer information
Under the microscope
- Frame weight
- 760 g (size 53)
- Carbon
- Toray 40T/30T, FAW 50
- Tyre clearance
- Up to 32 mm
- Sizes
- 45-61 (7 sizes)
- Seatpost
- 2 setback options, 3B Clamp System Gen II
- Cockpit
- Integrated Levita handlebar option, 330 g
- Tyre clearance in our configurator
- 30 mm
Why it matters
The configurator estimate is not a quotation. Thomas confirms price, specification and availability.
Explore further
Specs explained
Frame weight760 g (size 53)
Lower weight helps on climbs and repeated accelerations. For flat rides, commuting and carrying loads, comfort, durability and aerodynamics often matter more than a few grams. Frame, wheelset and complete-bike weights are not directly comparable.
CarbonToray 40T/30T, FAW 50
Material affects weight, stiffness, maintenance and use, but construction matters just as much. Do not choose on a carbon or metal label alone. Racers prioritise weight and response; everyday riders durability, protection and upkeep.
Tyre clearanceUp to 32 mm
More clearance gives options for comfort, grip and rough surfaces. Choose a supple road tyre for smooth tarmac, or more volume and suitable tread for gravel. Mounted width also depends on the rim; Thomas checks the combination and safe clearance.
Sizes45-61 (7 sizes)
Stack and reach help define riding height and length; wheelbase and steering geometry affect stability and agility. Racers often want a lower position, endurance riders more comfort. Do not compare sizes by name alone; body measurements and a fitting matter.
Seatpost2 setback options, 3B Clamp System Gen II
Bar width, stem length and adjustment shape grip, position and control. An aggressive position can support speed only if you can sustain it comfortably. For long rides and commuting, fit comes first; integrated parts can offer less adjustment.
CockpitIntegrated Levita handlebar option, 330 g
Bar width, stem length and adjustment shape grip, position and control. An aggressive position can support speed only if you can sustain it comfortably. For long rides and commuting, fit comes first; integrated parts can offer less adjustment.
Frequently asked questions
What is the Basso Diamante?
Classic round-tube climbing frame, 26 years and 8 evolutions, 760 g carbon frame (size 53), tyre clearance up to 32 mm, build can meet UCI weight limit.
Manufacturer informationWhat does tyre clearance mean on the Basso Diamante?
Tyre clearance: Up to 32 mm. More clearance gives options for comfort, grip and rough surfaces. Choose a supple road tyre for smooth tarmac, or more volume and suitable tread for gravel. Mounted width also depends on the rim; Thomas checks the combination and safe clearance.
Schwalbe band- en velgmatenWhat does carbon mean on the Basso Diamante?
Carbon: Toray 40T/30T, FAW 50. Material affects weight, stiffness, maintenance and use, but construction matters just as much. Do not choose on a carbon or metal label alone. Racers prioritise weight and response; everyday riders durability, protection and upkeep.
Basso Diamante geometrie en constructieWhat should I check before fitting the Basso Diamante?
Tyre, rim and frame must fit as a combination. Mounted tyre width can differ from the sidewall size. Thomas checks clearance and the exact version before assembly.
Manufacturer information