Trek Madone Seatpost Saddle Clamp Ears, fit 2018 Madone 9 or 2019 Madone SLR models only.?

Code W524900, Aero seatpost clamp ears #W524900 for 7x7 mm round rails, for Trek Madone 9 series.

Code W524901, Aero seatpost clamp ears #W524901 for 7x10 mm oval rails, for Trek Madone 9 series, without bolt.

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