Quick Summary
The TRIWONDER Bike Seat Post is a black aluminium seatpost with a stated 25.4 mm size and 350 mm length. It is part of a wider size range that also includes 27.2 mm, 28.6 mm, 30.4 mm, 30.8 mm and 31.6 mm versions.
This is a seatpost rather than a complete seat clamp assembly, and the clamp is not included. Before buying, check the seat tube size on your bike and confirm that you already have a compatible clamp if your setup needs one.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | TRIWONDER, which identifies the product range. |
| Product type | Bike seat post for a bicycle saddle setup. |
| Colour | Black. |
| Size | 25.4 mm. |
| Length | 350 mm, which affects fit and frame compatibility. |
| Material | Aluminium alloy. |
| Other stated sizes | 27.2 mm, 28.6 mm, 30.4 mm, 30.8 mm and 31.6 mm are also listed as available sizes. |
| Included items | No clamp is included. |
What to Compare Before Buying
- Seat tube size: Match the 25.4 mm version to your frame if that is the size you need.
- Length: The stated 350 mm length should suit your frame and riding position.
- Clamp requirement: Check whether your bike needs a separate clamp, since one is not included.
- Variant: Other diameters are listed, so choose the correct size rather than relying on appearance alone.
Compatibility, Size and Fit
This seatpost is offered in several diameters, with 25.4 mm as the selected size in this variant. That makes the exact measurement the main check before purchase. The 350 mm length is another important fit point, especially if your frame or saddle setup needs a particular post length.
The product description also states that a clamp is not included. If your current setup depends on a separate clamp, make sure you have the correct part before fitting the seatpost.
Before You Decide
Confirm the 25.4 mm size, the 350 mm length and the black finish before choosing an offer. Check that your bike frame needs this seatpost size, and make sure you have a compatible clamp if your setup requires one.
