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Seat Tube SizeUpdated 20 days ago

In BMX there are a few different Seat Tube Sizes. This is the "hole" that your Seat Post inserts into. Your Seat Post needs to be the same size as your seat tube.

  • 22.2mm
  • 25.4mm
  • 25.4mm Aero
  • 27.2mm
  • 27.2mm Aero
  • 31.6mm

*Nearly all aftermarket Freestyle Frames will run a 25.4mm.

*Aero Seat tubes will only work with Aero Posts

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