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Rotor’s new SP1 seatpost weighs well under 200 grams, with a forged, then machined construction that steps down from the seat tube diameter to minimize weight. | Photo: Matt Pacocha
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Rotor’s new SP1 seatpost weighs well under 200 grams, with a forged, then machined construction that steps down from the seat tube diameter to minimize weight. | Photo: Matt Pacocha
