---
product_id: 580506506
title: "SR SUNTOUR SP12 NCX Suspension Seat Post with Protective Cover 27.2X350mm,Black"
brand: "bikesmart"
price: "¥39928"
currency: JPY
in_stock: true
reviews_count: 7
category: "Bikesmart"
url: https://www.desertcart.jp/products/580506506-sr-suntour-sp12-ncx-suspension-seat-post-with-protective-cover
store_origin: JP
region: Japan
---

# Brass bushing parallelogram system Internal coil with preload adjust 50mm suspension travel SR SUNTOUR SP12 NCX Suspension Seat Post with Protective Cover 27.2X350mm,Black

**Brand:** bikesmart
**Price:** ¥39928
**Availability:** ✅ In Stock

## Summary

> 🚵‍♂️ Ride smoother, ride smarter — upgrade your seat post game!

## Quick Answers

- **What is this?** SR SUNTOUR SP12 NCX Suspension Seat Post with Protective Cover 27.2X350mm,Black by bikesmart
- **How much does it cost?** ¥39928 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/580506506-sr-suntour-sp12-ncx-suspension-seat-post-with-protective-cover)

## Best For

- bikesmart enthusiasts

## Why This Product

- Trusted bikesmart brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lightweight Alloy Build:** At just 780g, enjoy performance without the bulk slowing you down.
- • **Customizable Coil Preload:** Tailor your suspension firmness to match your weight and riding style.
- • **Smooth 50mm Suspension Travel:** Absorb shocks effortlessly for a plush ride on any terrain.
- • **Precision Brass Bushing System:** Experience durable, low-friction movement that keeps you riding longer.
- • **Universal 7mm Rail Compatibility:** Seamlessly fits most saddles for quick upgrades and easy swaps.

## Overview

The SR SUNTOUR SP12 NCX Suspension Seat Post offers 50mm of travel with a robust brass bushing parallelogram system and an internal coil suspension featuring preload adjustment. Designed for road and MTB riders weighing 60-100kg, this lightweight 780g alloy seat post fits 7mm rail saddles and measures 27.2x350mm, delivering enhanced comfort and control on every ride.

## Description

- Travel: 50mm - System: Brass bushing parallelogram system - 25mm setback - Oouter diameter: 27.2mm - Length: 350mm - Suspension system: Internal coil w/ preload adjust - Arm material: Alloy - Target category: All road-sport / MTB - For 7mm saddle rails - Weight: 780g - Color: Black (as pic. shown) - OEM package (This item is exactly as pictured and does not include retail package) Contents : 1 pc/pack

Review: Perfect device for your bike. - The device changes the cycling sensations. It's a perfect solution for uneven roads and off road. Of cource, a bike double suspension is better, but this is cheap and can be installed on any bike. I replaced my standard spring seat post supplied along with my bycicle by default with a Suntour. The device looks solid and has a good quality. Take proper measurement of the diameter of the existing bike seat post and order a corresponding adapter if needed.
Review: Decent kit - Easy to install. Works great. Absorbs harsh bumps. It also absorbs some of the energy used to peddle but I'm not racing so it doesn't bother me.

## Features

- - Travel: 50mm
- Length: 350mm (Maximum extension of 300mm height) Weight: 780g
- Suggested rider weight: 60-100kg
- - OEM package (This item is exactly as pictured and does not include retail package)
- 7mm rail saddle only

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | bikesmart |
| UPC | 727536099796 |
| Bike type | Road Bike |
| Color | Black |
| Size | One Size |
| Material type | Metal |
| Included components | 1 x seat post with cover |
| Product Dimensions | 2.72 x 2.72 x 35 cm; 910 g |
| ASIN | B0CBP2D1CR |

## Product Details

- **Colour:** Black
- **Item weight:** 0.91 Kilograms
- **Material:** Metal
- **Brand:** bikesmart
- **Product dimensions:** 11W x 138H millimetres

## Images

![SR SUNTOUR SP12 NCX Suspension Seat Post with Protective Cover 27.2X350mm,Black - Image 1](https://m.media-amazon.com/images/I/41qyNtuJkuL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect device for your bike.
*by S***Y on 5 October 2025*

The device changes the cycling sensations. It's a perfect solution for uneven roads and off road. Of cource, a bike double suspension is better, but this is cheap and can be installed on any bike. I replaced my standard spring seat post supplied along with my bycicle by default with a Suntour. The device looks solid and has a good quality. Take proper measurement of the diameter of the existing bike seat post and order a corresponding adapter if needed.

### ⭐⭐⭐⭐⭐ Decent kit
*by R***. on 6 August 2025*

Easy to install. Works great. Absorbs harsh bumps. It also absorbs some of the energy used to peddle but I'm not racing so it doesn't bother me.

### ⭐⭐⭐⭐⭐ Review
*by G***L on 10 August 2025*

I’ve never had a suspension seat post before, and this one is awesome. I’m a heavier rider,240 lbs, so I ordered the heavier weight spring. Changing the spring was easy, just make sure to use some good bicycle grease before putting the new spring in. Awesome ride quality! Made my ride so much more comfortable. Installing it was really easy. My ride was so much smoother. 3 hours and the only thing that was hurting were my legs because I haven’t been riding for almost a year. Awesome seat post! Everyone who rides needs one of these! Don’t forget to get the nice cover to keep the mechanism clean!

## Frequently Bought Together

- SR SUNTOUR SP12 NCX Suspension Seat Post with Protective Cover 27.2X350mm,Black
- Sunlite Cloud-9 Bicycle Suspension Cruiser Saddle, Cruiser Gel, Tri-color Black
- Hard NCX Seat Post Spring (PKE100-20)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/580506506-sr-suntour-sp12-ncx-suspension-seat-post-with-protective-cover](https://www.desertcart.jp/products/580506506-sr-suntour-sp12-ncx-suspension-seat-post-with-protective-cover)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-30*