Quick Summary
These bicycle seatpost shock springs are made for SR Suntour NCX seatposts. The product is a seatpost spring intended to help reduce bumps on cycle paths and city streets. The red spring is described as designed to take extra weight, while the existing spring is described as not supporting riders over 200 lbs.
Use the fit details and weight-related note together before choosing an offer. For this type of part, the most important checks are seatpost compatibility, whether the original spacer can be reused, and whether the spring matches the rider weight range you need.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Product type | Seatpost spring for a bicycle seatpost setup. |
| Compatibility | Compatible with SR Suntour NCX seatposts. Check that your seatpost matches this exact fit requirement. |
| Fit note | Fits all post diameters and reuses the original spacer inside if available. Confirm your seatpost setup before choosing an offer. |
| Weight note | The existing spring is described as not supporting riders over 200 lbs. The red spring is described as designed to take the extra weight. |
What to Compare Before Buying
- Seatpost model: This part is for SR Suntour NCX seatposts, so match your seatpost model exactly.
- Spacer use: The part reuses the original spacer inside if available, so check whether your seatpost has the needed spacer.
- Weight-related choice: Compare the spring version against the rider weight note if that affects your setup.
- Post diameter: The part is described as fitting all post diameters, but the seatpost itself still needs to be the correct NCX fit.
Before You Decide
Confirm that your seatpost is an SR Suntour NCX model before choosing an offer. Check whether you need the red spring version for the weight-related requirement described here, and make sure the original spacer can be reused in your setup.





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