34.9 mm (1.375") Double Butted Tubes


Availability: Out of stock

  • • Designed by Columbus
  • • Alloy: Max Niobium Steel
  • • Tubes shaped according to stress-direction
  • • Maximized stiffness, reduced thickness, weight and power-dispersion
  • • Elliptical and oriented oversized sections for an increased momentum of inertia to better face and respond to the stress-direction in the various areas of the frame, giving an extremely improved performance
  • • Made in Italy

34.9 mm (1.375") Double Butted Tubes


Columbus Max Niobium Steel AlloySince 1919, Columbus has been a leader and innovator in producing steel tubing, first for the bicycle industry, later for aviation and Italian racing car and motorcycle chassis. Known for their extensive research in mechanics and metallurgy, frame builders can count on the guaranteed quality and controlled origin of Columbus to build bikes that combine stiffness and strength with increased resistance to deformation and breakage. The selection of tube profiles and alloys allow for customization to meet the needs of any rider, condition, or terrain. Favored by champions and top riders from Gimondi to Merckx, Hinault to Argentin, Lemond and Roche, Columbus is internationally recognized as “The Soul of Cycling.”

Additional Information

Part Number MAXL12650
Diameter 34.9 mm
Wall in mm .8\.5\.8
Center 310
Length 650
Alloy MAX
Butt 1 125
Taper 1 45
Center 310
Taper 2 45
Butt 2 125