Quick Summary
The Bynccea bicycle seat post is a 400 mm seatpost with size options listed as 27.2 mm, 30.9 mm, and 31.6 mm. It is described as an MTB seatpost with an adjustable head for installation on a bike that matches the chosen diameter.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand | Bynccea. Useful for identifying the exact seatpost family. |
| Product type | Bicycle seat post. Check that this is the part you need, not a saddle or clamp. |
| Length | 400 mm. Compare the stated length with the space and setup you want. |
| Diameter options | 27.2 mm, 30.9 mm, and 31.6 mm. Match the selected diameter to your bike frame and current seatpost size. |
| Material | Forged aluminum alloy 6061 T6. Material choice can matter when comparing similar seatposts. |
| Adjustable head | Adjustable head. Check whether the saddle mounting style matches your bike and saddle setup. |
What to Compare Before Buying
- Diameter: Choose the exact 27.2 mm, 30.9 mm, or 31.6 mm version that matches your bike.
- Length: The seatpost is 400 mm long, so compare that length with the setup space you need.
- Head style: The adjustable head matters if you need a particular saddle mounting style.
- Material: The seatpost is forged aluminum alloy 6061 T6, which is a useful comparison point against other seatposts.
Compatibility, Size and Fit
This seatpost is only a fit when the selected diameter matches your bike. Check the existing seatpost marking or the frame’s required seatpost size before choosing an offer. The 400 mm length is another important check for your riding position and adjustment range.
Before You Decide
Confirm the exact diameter first, then compare the 400 mm length with your bike setup. If you need a seatpost with the adjustable head style, make sure that matches your saddle mounting needs before you choose an offer.





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