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_MG_3237 copy

_MG_3237 copy

John Stevenson John Stevenson

The seat tube design that Trek calls a Roll-wrap seat tube. The seat tube is an independent member that pierces that top tube and seatstays. The idea is  to give a really compliant ride so that the rider can keep the power down while seated, according to Trek. The design is claimed to be twice as compliant as the previous Superfly frame.