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UPANBIKE 450mm Aluminium Alloy Bike Seat Post with Micro Adjust Clamp

£15.99 (as of 29/10/2026 01:55 GMT - DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)

UPANBIKE extra long bike seat post in 450 mm length, made from aluminium alloy and supplied with a micro adjust clamp. It is stated as a 30.9 mm fit, so the frame seatpost hole must match that size, and the clamp allows saddle tilt angle adjustment.

SKU: B07DD8RSKH Category:

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Quick Summary

The UPANBIKE 450 mm bike seat post is an extra long replacement seatpost with a micro adjust clamp. It is described as a 30.9 mm fit and is intended to raise saddle height where that size is required.

The stated length is 17.7 inch, which is 450 mm. The clamp is adjustable for saddle tilt angle, so the saddle angle can be set to suit the build and setup of the bike.

Key Details

Detail Verified information and buyer relevance
Brand UPANBIKE.
Product type Bike seat post.
Length 17.7 inch (450 mm), an extra long format for bikes that need more seatpost height.
Fit size 30.9 mm seatpost fit, so the frame opening must match this size.
Clamp Micro adjust clamp with adjustable saddle tilt angle.
Material Aluminium alloy.

What to Compare Before Buying

  • Seatpost diameter: The stated fit size is 30.9 mm. Match this against the frame seatpost hole before choosing an offer.
  • Length: This seatpost is 450 mm long. Compare that with the height adjustment you need for your riding position.
  • Saddle angle adjustment: The clamp allows the saddle tilt angle to be set. Check whether that style of clamp suits your saddle setup.
  • Replacement use: This is a replacement seatpost, so confirm it is the right size and style for the bike already in use.

Compatibility, Size and Fit

This seatpost is for bikes that need a 30.9 mm seatpost size. The stated fit is important, because the post must match the frame seatpost hole.

The extra long 450 mm length is relevant for taller riders or for bikes where more height adjustment is needed. Measure the size required on the bike before choosing an offer, and check that the saddle clamp style works with the saddle you plan to fit.

Before You Decide

Confirm the 30.9 mm fit size against your frame opening before choosing an offer. Check whether the 450 mm length suits the height you need, and make sure the micro adjust clamp works with your saddle setup. This is a replacement seatpost, so matching the size and configuration matters most.

Brand

UPANBIKE

Manufacturer

UPANTECH

Binding

Sports

Product Group

Sports

Part Number

50-128-4AMES

Model

50-128-4

Color

Black

Product Dimensions

1.22 x 1.22 x 17.72 inches

Size

30.9*450mm

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