Advertising Disclosure

5 Best Seat Posts of 2025

Last Updated - 2025/09/17

1
Best Choice

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Surface 604

SR Suntour SP12 NCX Bike Suspension Seatpost with Shim (27.2x350mm)

Surface 604

CA$139.00

More Details
Main highlights
- ✅ [Smooth Ride] Experience a smoother and more controlled ride as the suspension seatpost absorbs shocks and vibrations, providing a plush feel for both casual and avid cyclists.
- ✅ [Size and Fit] Specifically designed with a 27.2x350mm dimension, this seatpost is engineered to provide a perfect fit for a wide range of bikes, ensuring compatibility and a streamlined appearance.
- ✅ [Shim Inclusion] The seatpost comes with a shim, simplifying the installation process and offering additional versatility, allowing compatibility with different seat tube sizes.
- ✅ [Premium Suspension Seatpost] Benefit from advanced suspension technology with the SR Suntour SP12 NCX Bike Suspension Seatpost, enhancing your ride comfort and minimizing impact on rough terrains.
- ✅ [Durable Construction] Built to withstand diverse riding conditions, the SR Suntour SP12 NCX boasts durable construction, ensuring longevity and reliability in your cycling adventures.
CA$139.00
2
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

bikesmart

SR SUNTOUR SP12 NCX Suspension Seat Post with Protective Cover 27.2X350mm,Black

bikesmart

CA$128.00

More Details
Main highlights
- Suggested rider weight: 60-100kg
- Length: 350mm (Maximum extension of 300mm height) Weight: 780g
- 7mm rail saddle only
- - Travel: 50mm
- - OEM package (This item is exactly as pictured and does not include retail package)
CA$128.00
3

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Azarxis

Azarxis Bicycle Seat Post 350mm Alluminium Alloy Adjustable Replacement Seat Post with Micro Adjust Clamp for MTB Road Bike BMX φ 25.4 27.2 28.6 30.4 30.8 31.6mm (Black 30.4 x 350mm)

Azarxis

CA$19.99

More Details
Main highlights
- 🚲 UNIVERSAL: Suitable for most bikes, such as Fixed Gear Bikes, Mountain Bikes, Road Bikes, Track Bikes, DownHill Bikes, Folding Bikes, BMX etc
- 🚲 SPECIFICATION: Length: 350mm/13.8". Diameter: φ25.4mm/1", 27.2mm/1.07", 28.6mm/1.12", 30.4mm/1.2", 30.8mm/1.21", 31.6mm/1.24". Weight: 10-12.7oz (284-360g). Color: black
- 🚲 HIGH QUALITY: Made of refined 6061 aluminum alloy, light weight, sturdy, high toughness, no deformation. Polished anodized finish, corrosion-resistant, rust-free
- 🚲 ADJUSTABLE CLAMP: Equipped with adjustable saddle clamp, you can adjust the bottom screw to change the seat angle. Easy to install the seatpost
- 📣 ATTENTION: Please choose the correct diameter size before purchasing. You can either check the diameter marked on the original seatpost, or use the ruler / vernier caliper to measure the inner diameter of the frame tube to get the correct size
CA$19.99
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

TIKBRO

TIKBRO Bike Seat Post 27.2mm 30.9mm 31.6mm Aluminum Alloy 350mm 400mm Length Bicycle Seatpost for Road Bike and Mountain Bike BMX

TIKBRO

CA$22.99

More Details
Main highlights
- Use&Fit: Widely use in most road bicycles, fixed gear bicycles, mountain bikes, downhill bicycles, rail bikes, MTB,BMX, etc
- Safe line mark: There is a safety line mark on the seatpost. Please insert at least above the minimum safety line when installing the new seatpost
- SIZE: Diameter: 27.2 / 30.9 / 31.6 mm; Length: 350 mm / 400 mm
- Material: Our bike seatpost is made of lightweight aluminum alloy, and the internal design is sturdy and durable, improving the load-bearing
- Easy to Install: This seatpost with adjustable head,convenient to install. Just unbolt the old seat and remove the seat tube, then secure the seat bolt to the new one and attach it to the frame
CA$22.99
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Bibike

Safort Suspension Seatpost 27.2/28.6/30.0/30.4/30.9/31.6/33.9mm Seatpost with Shim and Cover

Bibike

CA$119.00

More Details
Main highlights
- Smooth Ride: Enjoy a smooth journey with 365mm length and 50mm travel, ensuring a smooth and enjoyable ride on a variety of terrains.
- Easy Customization: Fine-tune your ride's damping with ease using the 5mm hex wrench. for a tailored experience (15-18Nm torque).
- Certified Quality: ISO4210/EN 15194 certified, this seatpost prioritizes safety and quality. Crafted from Al6061-T6 aluminum alloy for durability and performance.
- Before Purchasing, please check the diameter of your old seatpost to ensure you receive the correct new seatpost. Only the seatpost with the uniquely correct diameter can be installed on your bicycle; and choosing a seatpost with any other diameter will result in installation failure.
- All-Inclusive Set: Elevate your ride with the Adjustable Suspension Seatpost Package, including 1 seatpost, cover, and instructions manual.
CA$119.00

5 Best Seat Posts of 2025

SR Suntour SP12 NCX Bike Suspension Seatpost with Shim (27.2x350mm)

SR SUNTOUR SP12 NCX Suspension Seat Post with Protective Cover 27.2X350mm,Black

Azarxis Bicycle Seat Post 350mm Alluminium Alloy Adjustable Replacement Seat Post with Micro Adjust Clamp for MTB Road Bike BMX φ 25.4 27.2 28.6 30.4 30.8 31.6mm (Black 30.4 x 350mm)

TIKBRO Bike Seat Post 27.2mm 30.9mm 31.6mm Aluminum Alloy 350mm 400mm Length Bicycle Seatpost for Road Bike and Mountain Bike BMX

Safort Suspension Seatpost 27.2/28.6/30.0/30.4/30.9/31.6/33.9mm Seatpost with Shim and Cover

You may also like...

CXWXC Suspension Seatpost 27.2 30.9 31.6 (27.2mm) (30.9mm)

SR Suntour SP12 NCX 31.6X350mm Suspension Seat Post with Protective Cover Black

UPANBIKE Bike Seatpost Aluminum Alloy Φ27.2mm*400mm Extender Length Seat Post for Mountain Bike Blue

Safort USS Suspension Seatpost with Cover, Diameter: 27.2mm / 30.9mm / 31.6mm, for E-Bikes, Gravel, Road, Hybrid, Size: ø27.2mm x 365mm

Joxvizx Bike Carbon SeatPost 27.2/31.6-400/350mm,Ultralight Carbon Fiber MTB Bicycle Seat Post,Adjustable Offset Cycling Seat Tube for Road Mountain Bike,Fixed Gear,BMX,3K Matte Black (27.2X350MM)

UPANBIKE Bike Seat Post Aluminum Alloy 400mm Length Diameter 27.2mm Mountain Bike Road Bicycle Seatpost(Black)

FIFTY-FIFTY Mountain Bike Seat Post, 27.2/30.9/31.6mm Aluminum Alloy Bicycle Seat Post, 350mm Length for MTB, Road Bike, E-MTB (27.2mm)

DUZFOREI 27.2 X 350mm Bike Suspension Seatpost, Aluminum, Bike Seatpost, MTB, Black

UPANBIKE 13.8inch (350mm) Bike Bicycle Alluminium Alloy Seat Post with Micro Adjust Clamp (φ31.6mm)

REDSHIFT ShockStop Endurance Suspension Seatpost for Bicycles, Shock-Absorber Bike Seat Post for Road, Gravel, Hybrid, and E-Bikes

Sign up and get exclusive special deals