Quick Summary
The SR SUNTOUR SP12-NCX is a black suspension seat post with a 27.2 mm diameter. It uses a brass bushing parallelogram system and alloy arms, with 50 mm travel.
The stated length is 350 mm and the rider weight range is 60-100 kg. Hard or soft spring options are mentioned, so the exact setup matters when choosing this seat post.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | SR SUNTOUR, for product identity. |
| Model | SP12-NCX, the exact seat post model. |
| Product type | Suspension seat post, for bikes that need this format. |
| Colour | Black, to match the chosen build. |
| Diameter | 27.2 mm, which must match the seat tube size. |
| Length | 350 mm, important for frame and insertion checks. |
| Travel | 50 mm travel, which affects how much movement the post allows. |
| Rider weight range | 60-100 kg, so rider weight should be checked against the stated range. |
| Construction | Brass bushing parallelogram system with alloy arms. |
What to Compare Before Buying
- Seat tube diameter: This model is 27.2 mm, so the frame opening must match that size.
- Length: The post is 350 mm long, so check frame insertion space and saddle height needs.
- Travel: The stated 50 mm travel is the key movement figure to compare with your preference.
- Rider weight range: The stated 60-100 kg range should suit the rider using it.
- Spring option: Hard or soft spring options are mentioned, so confirm the chosen setup.
Compatibility, Size and Fit
This seat post is for bikes that use a 27.2 mm seat tube diameter. The 350 mm length and 50 mm travel also matter because they affect fit and saddle position. Check the frame size, insertion depth and preferred saddle height before choosing an offer.
Choosing the Correct Version
The important version checks here are diameter, length and spring option. Make sure the selected seat post matches the 27.2 mm size, the 350 mm length and the preferred hard or soft spring configuration.
Before You Decide
Confirm the 27.2 mm diameter, 350 mm length and 60-100 kg rider weight range before choosing an offer. If the frame needs a different seat post size or a different spring setup, compare that first.






