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Amazon.com : Titanium Balance Seatpost for Brompton Folding Bike 31.8mm Ultra Light Seat Saddle Post Fit 7*7 / 7*9 Rails (550, Gold Color) : Sports & Outdoors
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31.8 X 580mm Carbon Fiber Offset Setback Bicycle Seat Post For Brompton Folding Bike 260g Seatpost Load 115kg - AliExpress
![Amazon.com : Titanium Gooseneck Seat Post for Brompton Bicycle Saddle 31.8mm Folding Bike New Type Rod 550/580mm Gr9 Ti Accessories (550, Gold Color) : Sports & Outdoors Amazon.com : Titanium Gooseneck Seat Post for Brompton Bicycle Saddle 31.8mm Folding Bike New Type Rod 550/580mm Gr9 Ti Accessories (550, Gold Color) : Sports & Outdoors](https://m.media-amazon.com/images/I/51zvqZpnoZL._AC_UF1000,1000_QL80_.jpg)
Amazon.com : Titanium Gooseneck Seat Post for Brompton Bicycle Saddle 31.8mm Folding Bike New Type Rod 550/580mm Gr9 Ti Accessories (550, Gold Color) : Sports & Outdoors
![So I've just replaced my telescopic seatpost to this alloy one that's a fraction of the weight (470g savings!). Yet to take it for a spin, but any major cons I need So I've just replaced my telescopic seatpost to this alloy one that's a fraction of the weight (470g savings!). Yet to take it for a spin, but any major cons I need](https://preview.redd.it/i5yqroddkap81.jpg?width=640&crop=smart&auto=webp&s=365ed76b86854dd254f93a16d36f1fc87d8cd5cc)