Quick Summary
The Albedel set of 4 bike seat post adapter shims converts a 25.4 mm seat post size to 27.2 mm, 28.6 mm, 30.9 mm or 31.6 mm. It is a conversion sleeve set for bike seat tubes, with 4 sizes included in the pack.
It is described as being made from aluminium alloy. The stated length is 60 mm, so buyers should compare that dimension with the space and fit required for their bike setup.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | Albedel |
| Product type | Bike seat post adapter shim set |
| Pack quantity | Set of 4. Check the selected size against the seat post and seat tube arrangement you need. |
| Conversion sizes | 25.4 mm to 27.2 mm, 28.6 mm, 30.9 mm and 31.6 mm. |
| Length | 60 mm. This helps with checking space and fit before choosing an offer. |
| Material | Aluminium alloy. |
What to Compare Before Buying
- Seat post size: This set is for 25.4 mm conversion. Compare that with the seat post size on your bike.
- Target diameter: The pack includes 27.2 mm, 28.6 mm, 30.9 mm and 31.6 mm options. Choose the diameter that matches the part you want to fit.
- Length: The stated 60 mm length may matter if your frame or seat tube space is tight.
- Set size: This is a set of 4, so check whether you need one adapter or several sizes.
Choosing the Correct Version
Check the 25.4 mm starting size, the required conversion diameter and the 60 mm length before selecting an offer. That keeps the adapter shim matched to the bike’s seat post and seat tube setup.
Before You Decide
Confirm the 25.4 mm conversion size, the target diameter you need and the 60 mm length before choosing. If your bike uses a different seat post size, a different adapter set will be needed.









