Vintage Diamond Back Seatpost 25.4mm Alloy Silver Bike Post Single 370g MTB Condition: Fair used condition, with moderate wear, scratches, and cosmetic oxidation as shown in photos Constructed from lightweight alloy, silver color Single bolt clamp head for easy seat installation Measures approximately 25.38mm diameter (labeled and measured as 25.4mm standard seatpost size) Total weight: 370 grams Approximate length shown in photos Compatible with vintage and classic BMX bikes requiring 25.4mm seatpost No cracks or structural damage—wear is strictly cosmetic Classic part for restoring vintage and retro bicycles
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