Quick Summary
The PLATTBK bike seat post is a 350 mm aluminum alloy seatpost with a 25.4 mm diameter. It is made for buyers who need a replacement seatpost in one of the listed diameter sizes and want to match the exact post diameter before buying.
The black anodized finish and safety line mark are part of the product details to note during selection and installation.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand | PLATTBK. Use it to confirm you are choosing the intended product. |
| Product type | Bike seat post. Check that this is the part you need for your bike. |
| Diameter | 25.4 mm, with additional listed size options of 27.2 mm, 28.6 mm, 30.9 mm and 31.6 mm. Diameter is the key fit check for this part. |
| Length | 350 mm. Compare the length with your bike’s setup needs. |
| Material | Aluminum alloy. This is the stated construction for the seatpost. |
| Finish | Black anodized finish. Check that the color and finish match your preference. |
| Safety line mark | Included on the seatpost. This mark is a practical install reference. |
What to Compare Before Buying
- Diameter: Match the required post diameter exactly. The listed sizes are 25.4 mm, 27.2 mm, 28.6 mm, 30.9 mm and 31.6 mm.
- Length: The seatpost is 350 mm long, so compare that with the fit you need on your bike.
- Finish: The black anodized finish matters if you want the seatpost to match the bike’s look.
- Use case: The seatpost is listed for road bicycles, fixed gear bicycles, mountain bikes, downhill bicycles and MTB use.
Compatibility, Size and Fit
Fit depends on the exact seat tube diameter your bike requires. Measure carefully before choosing a size, since the product is offered in several diameter options. The 25.4 mm version is one variant, not a universal fit.
The stated safety line mark gives a clear installation reference. During setup, keep the seatpost inserted according to the bike’s requirements and the mark on the post.
Before You Decide
Confirm the exact diameter your bike needs before choosing a size. Check that 350 mm length works for your setup, and make sure you select the correct diameter option rather than assuming one size will fit every bike. Follow the bike manufacturer’s and seatpost installation instructions when fitting the part.
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