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Bike Seatpost Aluminum Bicycle Seat Post Length 400mm φ28.6mm 30.4mm 31.6mm Black for Mountain Bike Road Bike MTB Road Bike BMX

4.5 (4) Write Review
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$7.69

$ 3 .99 $3.99

In Stock

About this item

  • 🚴‍♂️ NOTE: Please measure the actual diameter needed before purchasing. Seatpost clamps are not included in our item package, please purchase seatpost clamps separately if needed.
  • 🚴‍♂️ MATERIALS: Seatpost is made of aluminum alloy in one piece for high strength, durability and corrosion resistance.
  • 🚴‍♂️ Dimensions: Length: 400 mm; Diameter: 28.6 mm, Wall Thickness: 2 mm
  • 🚴‍♂️ GENERAL PURPOSE: Suitable for most road bikes, fixed-gear bikes, mountain bikes, mountain bikes, BMX, DH and more.
  • 🚴‍♂️ INSTALLATION AND USE: If you are purchasing a seatpost to replace an old one, you will only need to install our seatpost by following the steps for removing the old one. If you are using it to assemble your bike, you just need to make sure you purchase the size you need.


Product Description

Bike Seatpost
Bike Seatpost Aluminum
Bicycle Seat Post
400mm Black for Mountain Bike
Bike BMX

Quasilogical
Reviewed in the United States on March 19, 2025
I got this to use to mount a replacement seat on my mother's electric trike. I took the outer diameter measurement, and this fits perfectly with no slop or wiggle. The stem area where the seat attaches is a generic style that should work with nearly any aftermarket seat. The gauge of the metal is actually thicker than the OEM seat post from the bikes manufacturer. Nice!
Stfreview
Reviewed in the United States on March 17, 2025
Nice lightweight seat post. Easy install and it has a beautiful matte black finish.
Allen J.
Reviewed in the United States on March 15, 2025
Product looks to be good quality. I made the mistake and ordered wrong size bar. I'll return it and order correct size. My error. Will order from seller again.
Justin D
Reviewed in the United States on January 21, 2025
I needed a post because i needed my kids to go lower and it was S shaped, so I got this straight one. Unfortunately it is a wider diameter than my kids bike accepted. I can't say much beyond that, just make sure it's the right size and you'll be fine!