Quick Summary
The Antrader bike seatpost is a black bicycle seatpost with an 11.8 in length and a 1 in diameter. It is intended for mountain and road bikes, and the description also lists a 0.87 in top diameter.
This seatpost is the part to compare carefully if you are replacing an existing post. The stated measurements and included single-piece quantity are the main details that affect whether it is the right fit for your bike.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand | Antrader. Helps identify the exact seatpost version. |
| Product type | Bike seatpost. Used as the support between the seat and the bike frame. |
| Length | 11.8 in / 300 mm. Check that this length suits your setup. |
| Post diameter | 1 in / 25.4 mm. Confirm this matches the bike frame requirement. |
| Top diameter | 0.87 in / 22 mm. Compare this with the seat clamp or saddle connection needs. |
| Color | Black. |
| Quantity | 1 piece. Useful if you need a single replacement post. |
What to Compare Before Buying
- Diameter: The stated post diameter is 1 in / 25.4 mm. This is the main fit check for the frame.
- Length: The seatpost is 11.8 in / 300 mm long. Compare that with the adjustment space you need.
- Top connection: The listed top diameter is 0.87 in / 22 mm. Confirm it matches your saddle attachment needs.
- Quantity: This is a single seatpost, so it suits a replacement purchase rather than a multi-part kit.
Before You Decide
Confirm the 1 in / 25.4 mm post diameter before choosing an offer, and compare the 11.8 in length with your bike’s setup. If the saddle connection matters for your build, check the listed 0.87 in / 22 mm top diameter as well.





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