Quick Summary
The MBX black bicycle seatpost is a 31.6 mm x 350 mm seat post made from aluminium alloy. It is described as a suspension seat post and uses a two-bolt design for saddle tilt adjustment.
This version is the 31.6 x 350 mm option, so the key buying check is whether that diameter matches your frame and whether the length suits your setup. The seatpost also has a safety line mark for installation.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | MBX, as named in the product identity. |
| Product type | Bicycle seatpost for replacing or fitting a seat tube. |
| Variant | Black, 31.6 x 350 mm. |
| Diameter options | 27.2 mm, 30.9 mm and 31.6 mm are listed, so the selected size needs to match the bike. |
| Length options | 350 mm and 400 mm are listed, so the chosen length should suit the bike and riding position. |
| Material | Aluminium alloy. |
| Adjustment | Two-bolt design for saddle tilt adjustment. |
| Safety marking | Safety line mark on the seatpost for installation positioning. |
What to Compare Before Buying
- Seatpost diameter: The stated option here is 31.6 mm, so this needs to match the bike frame size.
- Length: The selected length is 350 mm. Compare this with the space and position you need on the bike.
- Saddle angle adjustment: The two-bolt design is intended for tilt adjustment, so check that this style suits your saddle setup.
- Installation position: The safety line mark should remain visible above the frame’s minimum insertion point.
Compatibility, Size and Fit
This seatpost is listed for mountain bikes, road bikes, fixed gear bikes and universal bikes. The practical fit check is still the same: confirm the exact diameter before buying, then compare the length and the available insertion depth on your bike.
If the frame takes a different diameter, or if you need a longer or shorter post, a different size should be chosen instead of forcing a match.
Before You Decide
Confirm the 31.6 mm diameter, the 350 mm length and the black finish before choosing an offer. Check that the safety line mark can be positioned correctly in your frame, and make sure the two-bolt adjustment style suits your saddle setup.
