31.7 mm (1.25") Single Butted Seat Tubes - SEAT POST DIAMETER =


Availability: Out of stock

  • • Designed by Columbus
  • • Alloy: Max Niobium Steel with anti-dent treatment
  • • 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
  • • New anti-dent treatment: localized thermal hardening process counters dents caused by an impact or collision, with particular attention paid to the central areas of the tubes which are thinner and lighter
  • • Made in Italy

31.7 mm (1.25") Single Butted Seat Tubes - SEAT POST DIAMETER =


Columbus Max Niobium Steel Alloy with anti-dent treatmentSince 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 MAXL13635+
Diameter 31.7 mm
Wall in mm .8\.5
Center 445
Length 635
Alloy MAX+
Butt 1 150
Taper 1 40
Center 445
Taper 2 -
Butt 2 -