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SR SUNTOUR NCX Suspension Seatpost SP12/SP25 - 350mm

4.6 (8) Write Review
Free shipping on orders over $29.99

$118.98

$ 48 .99 $48.99

In Stock

About this item

  • IMPORTANT - Please note that there are some SUNTOUR NCX suspension seatposts on the market that are not real. To identify real products, please refer to the identification methods on the details page or contact us to obtain the complete identification document
  • Comfortable Riding - The hardtail is ideal for efficient road travel. As you ride longer and faster, the comfort of our NCX seat post becomes crucial for enhanced enjoyment. Featuring a parallelogram design, the NCX seat post effectively absorbs shocks. It offers a long-term solution for a plush riding experience.
  • Preload Adjust - The internal spring absorbs vibrations from bumps, but the default spring rate may not be suitable for everyone. If you find it too firm, you can adjust the nut at the bottom of the seat post counterclockwise; if it feels too soft, you can adjust it clockwise. Keep adjusting until you reach your desired level of firmness.
  • Parallelogram Linkage Design - There are two types of suspension seatposts on the market: linkage and traditional. While traditional seatposts are more affordable, they are not as effective at absorbing shocks as linkage designs. Traditional designs require the rider's force on the saddle to align with the seatpost, demanding a consistent riding posture, which is not a requirement for linkage seatpost.
  • Specs - 50mm travel, 25mm setback, 350mm total length, , made of forged aluminum, suggest rider weight 70-95kg(155-210lbs)
  • Model - SP12(27.2mm), SP25(30.9/31.6mm). As Suntour does not produce seatposts in the diameters of 28.6/30.0/30.4/30.8/31.8/33.9/34.9 mm, we have paired shims with the 27.2mm seatpost to achieve this compatibility. For example, if you purchase a 30.4mm seatpost, you will receive a 27.2mm seatpost along with a shim for converting it to 30.4mm.Saving you the trouble of purchasing shims separately
  • Packing List - 1 suspension seat post, 1 manual, 1 shim (excluding 27.2/30.9/31.6mm). Note: Cover is not included in the package


The hardtail is still the weapon of choice when it comes to simple and efficient tarmac traveling. However, the more often, the longer and the faster you go, the comfort of our NCX seat post might be key to take you to the next level enjoyment. With its parallelogram construction, the NCX seat post efficiently buffers unpleasant hits. Offering 50mm of travel, two different spring rates, easy preload adjust and stainless steel bushings, the NCX seat post is your versatile long-term solution for the flying carpet feeling.


danny Silva
Reviewed in the United States on March 16, 2025
Made the bike noticeably heavier
TOM
Reviewed in the United States on March 14, 2025
Works fantastic
Steven Van
Reviewed in the United States on February 6, 2025
Good value seatpost very comfortable but doesn’t feel cheap at all would 100% recommend
DMiner54
Reviewed in the United States on February 6, 2025
The SUNTOUR NCX Suspension Seatpost is a fabulous innovation for bike riding. I ride mostly on the street but a lot of the pavement it’s rough or uneven. Using the sea post I can ride for hours and feel fine. The most comfortable solution I have used.
Dirk Diggler
Reviewed in the United States on February 19, 2025
I brought my Zizzo folding beach bike with me when I moved out to the middle of nowhere with no paved roads and the ride was rough, to say the least. After installing the Suntour Suspension Seatpost my bike is now a pleasure to ride, even on less than ideal gravel roads.
Jasper Chiaradio
Reviewed in the United States on February 11, 2025
I'm using this seat post in my Concord E-Bike which is fully rigid (no active suspension) and while it rode alright with the stock seat post, it was always uncomfortable to go over bumps and rocks, even the smallest of pebbles. It was quite a jarring difference, coming from my previous main commuter which was a cheap full suspension mountain bike. I knew after 1 ride on my E-Bike that I absolutely NEEDED a suspension seat post. The ride with this seat post in comparison to without it is absolutely night and day. It COMPLETELY eliminates any harshness you get from going over small rocks and bumps and softens jumps off and over curbs. Super easy installation, you just take your saddle off your old post and put it on this one, then slide the post into your frame. The only setup required is setting the preload, which can be a little annoying to deal with since the adjustment can only be done from the bottom of the post, meaning you have to take it out every time to change it, but the pre-load is something you're supposed to set and forget. I'm 5'11 170lbs and right out of the box the preload was almost perfect for me, but I did adjust it to make it slightly stiffer. I cannot stress how much more comfortable it is to have one of these. It may seem a little pricey if you're not too familiar with bike parts, but I can assure you it is 100% worth it. Many people consider this specific make and model one of the best value suspension seat posts for casual to intermediate biking. There are many more expensive options, but I simply use this for my everyday commute to work and didn't want to break the bank, so this was the one for me. Don't cheap out and get some no name $40 post, get one of these instead.
BergyPhx
Reviewed in the United States on December 28, 2024
Works especially well on the gravelly stuff. Well designed, priced right.
Eddie Seal
Reviewed in the United States on December 16, 2024
Works great on my ebike, highly recommended!