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@rive_gauche
hmm, interesting, tsx features:
"Tube set for professional use, coupling maximum performance with reduced weight. It is particularly suitable for stage races of more than 150 Km over mixed terrain.In addition to butted walls, this set has five helicoidal internal reinforcements, thus giving greater rigidity against tube flexing and torsion.
Cyclex Steel - Weight: 1945 g"
any spiral ridges in TT, ST, DT and HT? weight under 2kg?