Upanbike Bike Seat Post Diameter 25.4/27.2/28.6/30.4/30.9/31.6mm Extra Long 17.7inch Aluminum Alloy Bicycle Seatpost (Φ25.4mm)
Upanbike Bike Seat Post Diameter 25.4/27.2/28.6/30.4/30.9/31.6mm Extra Long 17.7inch Aluminum Alloy Bicycle Seatpost (Φ25.4mm)
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Upanbike Bike Seat Post Diameter 25.4/27.2/28.6/30.4/30.9/31.6mm Extra Long 17.7inch Aluminum Alloy Bicycle Seatpost (Φ25.4mm)

4.6 stars out of 28 reviews
(4.6)|
28 ratings
Upanbike Bike Seat Post Diameter 25.4/27.2/28.6/30.4/30.9/31.6mm Extra Long 17.7inch Aluminum Alloy Bicycle Seatpost (Φ25.4mm)Upanbike Bike Seat Post Diameter 25 4 27 2 28 6 30 4 30 9 31 6mm Extra Long 17 7inch Aluminum Alloy Bicycle Seatpost 25 4mmUpanbike Bike Seat Post Diameter 25 4 27 2 28 6 30 4 30 9 31 6mm Extra Long 17 7inch Aluminum Alloy Bicycle Seatpost 28 6mmUpanbike Bike Seat Post Diameter 25 4 27 2 28 6 30 4 30 9 31 6mm Extra Long 17 7inch Aluminum Alloy Bicycle Seatpost 30 4mmUpanbike Bike Seat Post Diameter 25 4 27 2 28 6 30 4 30 9 31 6mm Extra Long 17 7inch Aluminum Alloy Bicycle Seatpost 27 2mmUpanbike Bike Seat Post Diameter 25 4 27 2 28 6 30 4 30 9 31 6mm Extra Long 17 7inch Aluminum Alloy Bicycle Seatpost 31 6mmUpanbike Bike Seat Post Diameter 25 4 27 2 28 6 30 4 30 9 31 6mm Extra Long 17 7inch Aluminum Alloy Bicycle Seatpost 30 9mm
Size:450*25.4mm

Key item features

  • Material: Made from 6061 T6 Aluminum alloy for high strength and durability.
  • Dimensions: Extra-long seatpost with a length of 17.7 inches (450mm) and a tube thickness of 2.5mm.
  • Diameter Options: Available in multiple diameters: 25.4mm, 27.2mm, 28.6mm, 30.4mm, 30.9mm, and 31.6mm.
  • Adjustable Clamp: Features a micro-adjust clamp to easily adjust the saddle tilt angle.
  • Installation Tips: Insert the post into the bike frame hole and lock the seatpost clamp before turning the fixing bolt with a hexagon screwdriver.
  • Weight Limit: Not recommended to support over 220 lbs (100kg).
  • Color: Comes in a sleek black finish.
  • Package Includes: 1 X Bike Seatpost and a free hexagon wrench for installation.
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Current price is $16.99
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Columbus, 43215
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4.322620519159456 stars out of 5, based on 809 seller reviews(4.3)
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4.6 out of 5 stars
stars28 ratings10 reviews
How item rating is calculated
  1. 5 stars79% (22)
  2. 4 stars14% (4)
  3. 3 stars4% (1)
  4. 2 stars0% (0)
  5. 1 star4% (1)

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Showing 1-3 of 10 reviews

Aug 8, 2025
anonymous
Item details
Size: 450*30.8mm
Sold byAbuyamoyDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Good post for MTB

Make sure you order the correct size, that's the most important. Quality was very good for the price, maybe it wasn't the quality of the original post, but I'm sure that one cost a lot more. This product was well worth the price, it fit perfect and installing the seat on this new post was easy (make sure it's tight) and works perfectly. Totally replaced the original but much longer like I needed.

Helpful?3TTMG51TB4DY703740442
Apr 12, 2025
CMM
Top Reviewer
Item details
Size: 450*27.2mm
Sold byAbuyamoyDelivered byWalmart
5 out of 5 stars review

Verified Purchase

It fit my bike

be sure to measure your diameter of your old one because I end up with the wrong one and had to order this one

Helpful?3TTMG51TB4DY703740442
Oct 15, 2024
rita
Item details
Size: 450*25.4mm
Sold byAbuyamoyDelivered byWalmart
5 out of 5 stars review

Verified Purchase

quality post

this is a solid seatpost. i really don't have any negatives. bought a second for another bike. factory posts too short and heavy

Incentivized Review
Helpful?3TTMG51TB4DY703740442