Quick Summary
The Platt bike seatpost is a 350 mm aluminum alloy seat post in black, sized for a 27.2 mm seat tube. It is part of a diameter-specific lineup that also includes 25.4 mm, 28.2 mm, 30.8 mm, and 31.6 mm sizes, so the main buying check is matching the seatpost diameter to the bike.
The post includes a safety line mark, which helps with installation depth. Before choosing an offer, confirm the exact diameter your bike requires and check whether 350 mm is the length you want for your setup.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand | Platt, for identifying the exact seatpost. |
| Product type | Bicycle seatpost, used as the seat support component. |
| Diameter | 27.2 mm, one of several available diameter options. |
| Length | 350 mm, the stated seatpost length. |
| Material | Aluminum alloy, with a black anodized finish. |
| Safety line mark | Included for installation guidance on insertion depth. |
What to Compare Before Buying
- Diameter: This model is 27.2 mm. Match that measurement to your bike’s seat tube size before ordering.
- Length: The stated length is 350 mm. Compare that with the amount of post you want available for your saddle setup.
- Finish color: This version is black. Check the selected color if you are matching existing parts.
- Seatpost style: It is a standard bicycle seatpost. Confirm it matches the style your bike uses.
Before You Decide
Confirm the 27.2 mm diameter before choosing this seatpost, and compare the 350 mm length with your bike’s setup. The safety line mark is part of the post, so installation depth still needs to match the bike and saddle position you want. If your bike needs a different diameter, choose the matching size instead.
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