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Aluminium Alloy Bicycle Seat Post 31.6 x 300 mm

£13.99 (as of 29/10/2026 01:56 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.)

This aluminium alloy bicycle seat post is the 31.6 mm, 300 mm version for bikes that take this diameter. It includes a safety line mark and a saddle fixing arrangement, so the key check is whether your frame needs 27.2 mm, 30.9 mm or 31.6 mm before choosing an offer.

SKU: B0G81ZN58L Category:

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Quick Summary

This aluminium alloy bicycle seat post is a 31.6 mm version with a 300 mm length. It is made for bikes that take this diameter, so the key buying check is whether your frame needs 27.2 mm, 30.9 mm or 31.6 mm before you choose an offer.

The post has a safety line mark, and the saddle is fixed to the post during fitting. Its polished anodised finish and aluminium alloy construction are stated features of the part.

Key Details

Detail Verified information and buyer relevance
Product type Bicycle seat post for mountain bikes.
Diameter 31.6 mm. Check this against the frame size your bike requires.
Length 300 mm. This affects how much post is available for saddle height adjustment.
Material Aluminium alloy. This is the stated construction for the seat post.
Safety line mark Included. Use the mark as the minimum insertion reference when fitting.

What to Compare Before Buying

  • Diameter: This version is 31.6 mm. Match it to the seat tube size on your bike.
  • Length: The post is 300 mm long. Compare that with the saddle height range you need.
  • Variant: The product range includes 27.2 mm, 30.9 mm and 31.6 mm sizes, so select the correct diameter for your bike.
  • Fit and installation: The saddle is mounted onto the post during fitting, so check that your seat clamp and saddle arrangement suit this format.

Before You Decide

Confirm the 31.6 mm diameter and 300 mm length before choosing an offer. Check that the safety line mark can be kept above the frame entry point during installation, and make sure the saddle fixing arrangement matches your bike.

Brand

HillMiles MTB

Manufacturer

HillMiles MTB

Product Group

Outdoors

Warranty

2 year

Color

Black

Size

31.6*300mm

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