Quick Summary
The Platt bike seatpost is a black aluminum alloy bicycle seat post with a stated length of 350 mm. It is offered in the 25.4 mm size, so the key buying check is whether that diameter matches your bike frame and seat tube requirement.
The post includes a safety line mark for installation. Before fitting it, confirm the required diameter and make sure the post is inserted past the minimum safety line.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand | Platt. This is the named product line. |
| Product type | Bicycle seat post. It is the part that supports the saddle. |
| Variant | 25.4 mm black version. Check that this diameter matches your bike. |
| Length | 350 mm. This affects how far the post extends and how it fits in the frame. |
| Material | Aluminum alloy. Material choice is part of the product configuration. |
| Safety line mark | Marked seatpost with a minimum insertion line. Keep installation above that mark. |
What to Compare Before Buying
- Diameter: This version is 25.4 mm. Compare it with the seat tube size your bike requires.
- Length: The post is 350 mm long. Check that the length works with your saddle height and frame setup.
- Material: It uses aluminum alloy. Compare this with any material preference you have for the seatpost.
- Insertion limit: The safety line mark shows the minimum insertion point. Make sure your frame allows enough insertion depth.
Compatibility, Size and Fit
This seatpost is listed in a 25.4 mm diameter version. Diameter is the main fit check for this product, so measure the bike’s seat tube carefully before choosing an offer. The stated 350 mm length also matters if you need a specific insertion and saddle-height setup.
The fit note names road bikes, fixed gear bikes, mountain bikes, downhill bikes, rail bikes and BMX-style use, but the exact frame fit still depends on the required diameter and insertion depth.
Before You Decide
Confirm the 25.4 mm diameter, the 350 mm length and the available insertion depth before choosing an offer. If your bike needs a different seatpost size, select a matching version instead. Follow the installation line mark and use the correct fit for your frame.
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