Independent buyers guides and product information
UK edition · GBP
Price drop−6%

2 Pack Bike Seat Post Clamps 31.8 mm Quick Release for 27.2-28.6 mm Seatposts

Original price was: £4.29.Current price is: £3.99. (as of 03/11/2026 18:58 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 2-piece bike seat post clamp set uses a 31.8 mm inner diameter and is intended for 27.2 mm to 28.6 mm seatposts. It has a quick-release lever for tool-free fastening and adjustment, with aluminium alloy construction. Check the clamp size, seatpost size and pack quantity before choosing an offer.

SKU: B0GFDWY7WJ Category:

As an Amazon Associate we earn from qualifying purchases.

Not sure yet?Seatposts Buyer GuideRead what to compare before you choose

Compare with similar Seatposts

FZGLHQQ Bicycle Seatpost Clamp, 31.8 mm, Silver£5.59 (as of 11/10/2026 21:30 BST - 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.)View on Amazon
Price drop −6%Bicycle Seatpost Head Saddle Clamp for Single-Stem Seat Tubes Original price was: £6.39.Current price is: £5.98. (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.)View on Amazon
Price drop −18%34.9mm Quick Release Bike Seat Clamp Original price was: £5.49.Current price is: £4.49. (as of 11/10/2026 21:33 BST - 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.)View on Amazon

As an Amazon Associate we earn from qualifying purchases.

Quick Summary

This 2-piece bike seat post clamp set is a 31.8 mm quick-release clamp for seatposts measuring 27.2 mm to 28.6 mm. It is described as a lightweight aluminium clamp with a tool-free lever for fastening and adjustment.

If you are choosing between offers, the main checks are clamp size, seatpost size and whether you need a quick-release style clamp rather than a standard bolt type.

Key Details

Detail Verified information and buyer relevance
Pack quantity 2 clamps, so the set suits buyers needing two matching clamps.
Clamp size 31.8 mm inner diameter, which is the key fit point for the clamp itself.
Seatpost compatibility 27.2 mm to 28.6 mm seatposts, so the seatpost size should be checked carefully before choosing.
Material Aluminium alloy, which is a useful detail if material choice matters to you.
Adjustment style Quick-release lever, allowing tool-free fastening and release.

What to Compare Before Buying

  • Clamp diameter: This model uses a 31.8 mm inner diameter, so compare that with your frame or seat tube requirement.
  • Seatpost size: It is intended for 27.2 mm to 28.6 mm seatposts, so the seatpost measurement is the most important fit check.
  • Quantity: The set contains 2 clamps, which matters if you only need one clamp for a single bicycle.
  • Adjustment style: The quick-release lever is the main operating feature, so check that this is the style you want.

Compatibility, Size and Fit

The key compatibility point is the relationship between the 31.8 mm clamp size and the 27.2 mm to 28.6 mm seatpost range. Before choosing an offer, compare those measurements with your bicycle’s seat tube and seatpost setup.

Before You Decide

Confirm the clamp diameter, the seatpost size and the 2-piece quantity before choosing an offer. If you need a standard clamp rather than a quick-release style, this version is not the right match.

Brand

Xinjoduz

Manufacturer

Xinjoduz

Binding

Unknown Binding

Product Group

Home Improvement

Part Number

5320JWVT8895

Model

5320AUSK6300

Color

Black

Product Dimensions

2.55 x 2.36 x 0.51 inches

Item Weight

1.30 ounces

Size

31.8mm

Number Of Items

30

Scroll to Top