Post GT2 Long Seatpost

SEA-GTT6012721
$115.00
Upgrade your folding bike with the Post GT2 Long Seatpost, engineered for riders who demand both durability and performance. Featuring a classic in-line design with Zero Offset, the GT2 is precision CNC-machined for strength, style, and reliability. Its Anti-Slip design guarantees a secure fit, making it the perfect upgrade for...
Size :
Length :
Color :
Black
Silver
Blue
Red
Gold
Orange
Titan
Pewter
Purple
Pink
Tiffany Blue
Green
Hot Pink
$115.00
Shipping Policy

Upgrade your folding bike with the Post GT2 Long Seatpost, engineered for riders who demand both durability and performance. Featuring a classic in-line design with Zero Offset, the GT2 is precision CNC-machined for strength, style, and reliability. Its Anti-Slip design guarantees a secure fit, making it the perfect upgrade for folding bikes, mini velo, and other small wheel bikes.

Key Benefits:

  • Lightweight & Durable: Made from high-strength 2014-T6 aluminum tube with CrMo bolts.
  • Secure Fit: Anti-Slip surface ensures stability during rides.
  • Sizes:
    • 31.8mm – commonly used for Brompton
    • 33.9mm – compatible with Dahon
    • 34.9mm – compatible with Birdy
    • Also available in 27.2mm and 30.9mm
  • Lengths: Standard 570mm and 600mm for folding bike riders.
  • Rail Compatibility: Fits standard round and 7x9 carbon rails.
  • Post Plug Included: With 31.8, 33.9, and 34.9mm options.

Long Seatpost Specifications:

  • Diameters: 27.2 / 30.9 / 31.8 / 33.9 / 34.9mm
  • Lengths: 570mm / 600mm
  • Colors: Black, Silver, Dark Blue, Red, Pink, Gold, Orange, Pewter, Titan, Purple, Green, Hot Pink, Tiffany Blue

Weight:

Description

MAX. Insertion  MIN. Insertion Weight (grams)
27.2 X 600 N/A 190mm 254.6g
30.9 X 600 N/A 190mm 282.1g
31.8 X 540 N/A Brompton 110mm 277g (with Post Plug
31.8 X 570 N/A Brompton 110mm 283g (with post plug)
31.8 X 600
N/A Brompton 120mm 307g (with post plug)
33.9 X 600 N/A 190mm 310g (with post plug)
34.9 X 600 N/A 190mm 324g (with post plug)

 

Customer Reviews

Based on 7 reviews
100%
(7)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
J
JMNS
Solved my problem

i have a problem with my seatpost which is sliding and also the pentaclip is not that cooperating. it solved both of my problem plus minus the weight. win win fo sho

M
Man Wa eric Chan

Woodman Post GT2 Long Seatpost

B
Brompton Folding Bike
-550g weight loss

I replaced the standard 843g telescopic seatpost + pentaclip with Woodman Post GT2 Long Seatpost 600mm - 293g. The difference was 550g. Massive weight loss, I think this is the most cost effective upgrade I've ever done.

A
Anatol
Major Brompton Update

The quality of the part is excellent! After replacing the seat post, the weight of the bike became less. Also non-slip design improved the grip. I highly recommend this upgrade!

L
Ling Hon Yim
Woodman Post GT2 Long Seatpost

Very good

Customer Reviews

Based on 7 reviews
100%
(7)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
J
JMNS
Solved my problem

i have a problem with my seatpost which is sliding and also the pentaclip is not that cooperating. it solved both of my problem plus minus the weight. win win fo sho

M
Man Wa eric Chan

Woodman Post GT2 Long Seatpost

B
Brompton Folding Bike
-550g weight loss

I replaced the standard 843g telescopic seatpost + pentaclip with Woodman Post GT2 Long Seatpost 600mm - 293g. The difference was 550g. Massive weight loss, I think this is the most cost effective upgrade I've ever done.

A
Anatol
Major Brompton Update

The quality of the part is excellent! After replacing the seat post, the weight of the bike became less. Also non-slip design improved the grip. I highly recommend this upgrade!

L
Ling Hon Yim
Woodman Post GT2 Long Seatpost

Very good

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Post GT2 Long Seatpost
27.2 / 600 / Black - $115.00
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