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Custom Frames > Steel Frames

	Columbus Zona Frame and Carbon Forks The characteristics of the Zona tubes • Tubes with increased thickness walls for “Over size” frames • Moderate weight and notable strength thanks to the shapes, which are introduced also for the tubes of the rear stay • Elevated reliability and fatigue life • Main triangle in Nivacrom, rear stays in steel alloy.		Price:	QTY:

	Columbus Life Frame and Carbon Forks The characteristics of the Life tubes • Reduced thickness, up to 0.45 mm • Availability of “over size” tubes for the TQ (Ř42) and the TV (Ř35) • Main triangle in NIOBIUM and rear stays in alloyed steel • Excellent resistance/weight ratio • Exceptional mechanical characteristics: high breaking load, superior tenacity and incredible fatigue endurance.		Price:	QTY:

	Columbus Spirit Frame and Carbon Forks The characteristics of the Spirit tubes • Reduced thickness, up to 0.38 mm • Exceptional mechanical characteristics: high breaking load, superior tenacity and incredible fatigue endurance • Special shaping designed to optimise strength and resistance • Excellent surface finish of tubes (no decarburization or oxidation) • Individual inspection and marking of the tubes of the main triangle • Main triangle in NIOBIUM and rear stays in seamless alloyed steel • Incomparable strength/weight ratio • Carbon seat tube • Adaptor for carbon seat tube • Investment cast BB Shell “MARS” for single plug rear stays.		Price:	QTY: