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.









