Description
Suspension seat post by SR Suntour. This NCX model is fitted with a Medium spring which has 50mm of travel within the parallelogram.
Ride Further. Feel Better. Comfort That Lasts.
The timeless SR SUNTOUR NCX suspension seatpost is engineered to bring long-lasting comfort and control to every ride — whether you’re on pavement, gravel, or trails. Built for performance and trusted worldwide, it’s the go-to upgrade for cyclists who demand more from their saddle.
Performance Where It Counts
With 50mm of smooth travel and stainless steel bushings, the NCX seatpost reduces road buzz, trail chatter, and harsh impacts — making it the perfect solution for alleviating back pain, saddle fatigue, and rider discomfort.
One Design, Two Models
Choose the SP12 (available in 27.2mm and 31.6mm) or the SP25 (available in 30.9mm) — both deliver the same performance and ride quality, with a minor variation in linkage design. Fully compatible with traditional bikes and eBikes, installation is easy and fit is universal.
Key Features
- 50mm Travel: Suspension comfort for smoother, more forgiving rides
- Stainless Steel Bushings: Durable, low-maintenance, and consistent performance
- Multiple Sizes: SP12 (27.2 / 31.6mm), SP25 (30.9mm)
- eBike & Traditional Bike Compatible: Versatile across all platforms
- Class-Leading Comfort: A proven upgrade for reducing rider fatigue
Upgrade your ride with the seatpost trusted by comfort-seekers worldwide.
SR SUNTOUR NCX — your back will thank you.
SPECS
- SR Suntour SP12 NCX suspension seat post
- 30.9mm outer diameter post
- 25mm offset saddle clamp
- 350mm long seat post
- 50mm travel
- Medium internal coil spring (rider weight 70-95 kg )
- Adjustable preload
- Sliding side saddle clamp has a radial detent with wide tilt adjustment range
- Requires 110mm of exposed seat post to the saddle rails to fit bike
- Maximum extension of 300mm height for 350mm length
- Maximum extension of 350mm height for 400mm length
- 7mm rail saddle rail clamp diameter
- Forged aluminium frame
- Stainless steel bushings
- 2 year manufacturers warranty included
- Made in Taiwan
- Black finish
Many of our seat posts are marked as a ‘BULK‘ item due to the size of the box they are shipped in & therefore do not fall under our Free Shipping category
IMPORTANT NOTE ABOUT SIZING
Bicycle seat posts are incredibly specific in their sizing – they come in 0.1 mm increments! And if you get the incorrect size you will stretch & damage your bike’s frame, or you will be unable to securely clamp the post & your seat post will slip while you are riding. It’s very important to use a Vernier to carefully measure the internal diameter of your bike’s seat tube.
We absolutely encourage you to take your bike to the bike shop for them to measure it for you if you don’t have a Vernier at home. If you’re a Melbourne local bring your bike into our shop & we will measure it for you. We keep many sizes in our Richmond store so it’s worth bringing your bike in to us if you can!
What does ‘In Stock at Warehouse’ mean?
This means the product is in stock in our warehouse, and will be ready to ship usually within 2-4 business days from order.
What is a ‘Bulk Item’ ?
A bulk item is a product that is large & bulky and therefore does not fall under our ‘Free Shipping’ category.
Can I pick up from the Warehouse?
The warehouse is not open to the public. For click & collect orders we bring your order over from the warehouse for you to collect from us at 27 Swan Street, Richmond. As the warehouse is huge, we aren’t able to keep all this stock in our shop in Richmond.
How much does it cost to ship this item to me?
We have a shipping calculator in our Cart. Adding the item to the cart & entering your postcode will allow the Cart to calculate how much it costs to ship the item to your address. And it will give you options for standard or Express post.
