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Top 10July 2025

Best Bike Seatpost

We made a list of the top 10 Bike Seatpost based on verified reviews, popularity and other factors which we summarized for you in this list.

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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)

✓Strong and Durable: The bike seat post is made of 6061 aluminum alloy and CNC full machined
✓One Piece Forge and Lightweight: The bike seatpost is one piece forge so it is only 330g(27.2mm)/315g(30.9mm)/345g (31.6mm)
✓Two-Bolt Design: Two-bolt design for easy adjustment the tilt angle of the saddle with the clip to make the saddle reach the best riding comfort and keep the saddle in its position
✓Adjustable Seatpost Height: Our MTB seatpost is engraved with clear height marks, easy to adjust the height of the seat post bike to reach the right height for you
✓Diameter: 27.2mm/30.9mm/31.6mm, Total length: 350mm (Adjustable height), Zero offset

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18% Discount

Bynccea Bike Seat Post 27.2mm 30.9mm 31.6mm Bicycle SeatPost 400mm for Mountain Bike Road Bikes MTB BMX

✓Mountain Bike Seatpost Size: 27.2mm/30.9mm/31.6mm,Total length: 400mm.
✓Pay Attention to Choose Correct Diameter Size:Take out your current seatpost, the diameter marked on it’s lower area. Then buy same size from the option.
✓Material:Forged aluminum alloy 6061 T6.
✓Bynccea MTB seatpost with adjustable head,convenient to install.
✓【12-MONTH WARRANTY】:Quality guarantee.If you’re not 100% satisfied with your bike seatposts, simply send us a message and we’ll take care of you.

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Azarxis Bike Seatpost, 25.4mm 27.2mm 28.6mm 30.4mm 30.8mm 31.6mm x 350mm Bicycle Seat Post Aluminum Alloy Seat Tube Saddle Pole for MTB, Road Bike, BMX, Fixed Gear (Black - 25.4 x 350mm)

✓🚴‍♂️ PAY ATTENTION: Please do measure the actual required diameter before purchasing. Saddle clamp is not included, please purchase the saddle clamp separately if needed
✓🚴‍♂️ MATERIAL: The seatpost is made of 6061 aluminum alloy, high strength, strong and durable, good corrosion resistance
✓🚴‍♂️ SIZE: Length: 350mm; Diameter: 25.4mm 27.2mm 28.6mm 30.4mm 30.8mm 31.6mm; Thickness: 2mm
✓🚴‍♂️ EASY TO INSTALL: installation is easy, just loosen the bolts of your old seat and remove your seatpost, then fix the seat bolts to the new seatpost and install it into your bicycle frame
✓🚴‍♂️ UNIVERSAL TYPE: Suitable for most road bike, fixed gear bicycle, mountain bikes, downhill bikes, track bikes, MTB, BMX, DH, etc

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12% Discount

Teyssor Bicycle Seat Post 25.4/27.2/28.6/30.9/31.6mm Bike Seatpost 400mm Adjustable for MTB BMX Road Bike Mountain Bikes

✓Length:400mm (about 15.75in).
✓Teyssor seatpost with adjustable head, convenient to install.saddle angle is adjustable.
✓Seat Post Diameter: 25.4mm about 360g
✓Material: Aluminium Alloy 6061
✓Suitable for road bike, mountain bikes, fixed gear bicycle, downhill bike, track bike, BMX, MTB, DH etc

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KREMORV 400mm Aluminum Alloy Seatpost, Universal Type for Mountain Bike, Road Bike, BMX etc.

✓【PAY ATTENTION】Saddle clamp is not included.Please do measure the actual outer diameter then choose the actually required diameter or measure the inner diameter of the frame tube before purchasing
✓【SIZE】Length:15.7"(400mm).Diameter: 25.4mm 27.2mm 28.6mm 30.4mm 30.9mm 31.6mm; Thickness: 0.08"(2mm)
✓【MATERIAL】6061 aluminum alloy,strong and durable
✓【UNIVERSAL TYPE】Suitable for most bike, fixed gear bicycle,MTB,mountain bikes,road bikes,downhill bikes, track bikes,BMX, DH, etc
✓【EASY INSTALLATION】Easy to install.There is a safe line mark on the seat post,Please insert at least above the minimum safety line

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Boenoea Bike Seatpost, Bicycle Seat Post 25.4 27.2 28.6 30.4 30.9 31.6 400mm Length Aluminum Alloy Bicycle Seat Tube for Mountain Bike and Road Bike, MBX

✓Warm Tips: Please measure and confirm the exact post diameter required before purchasing. The saddle clamp is not included, please buy it if needed
✓Size: Length: 400 mm; Diameter: 25.4mm; Color: Black
✓Material: Boenoea seatpost is made of lightweight aluminum alloy, and the internal design is sturdy and durable, improving the load-bearing
✓Easy 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. Please insert at least above the minimum safety line
✓Widely Universal: Boenoea Seat Post is widely suited for most road bikes, mountain bikes, fixed gear bikes, BMX, etc

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PLATTBK Bike Seat Post 25.4/27.2/28.6/30.9/31.6 350mm Aluminum Alloy Road Bike MTB Seatpost,25.4mm

✓【PAY ATTENTION】Please measure and confirm the exact post diameter required for your bike.
✓【MATERIAL】 Made of 6061 aluminum alloy, Lightweight strong and durable.Comes anodized in Black,Colorfast Surface,Great Anti-corrosion
✓【SIZE】Diameter: 25.4/27.2/28.6/30.9/31.6mm; Length:350mm;
✓【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.
✓【USE&FIT】Widely use in most road bicycles, fixed gear bicycles, mountain bikes, downhill bicycles, rail bikes, MTB, etc.

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

✓Note: Seatposts of different diameters are not compatible with each other. Choosing the wrong diameter can result in an inability to install.
✓All-Inclusive Set: Elevate your ride with the Adjustable Suspension Seatpost Package, including 1 seatpost, cover, and instructions manual.
✓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.

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Aeibxiy Bike SeatPost 27.2mm 30.9mm 31.6mm Aluminum Alloy 350mm Bicycle Seat Post for Mountain Road Bikes BMX

✓Size: Diameter: 27.2mm 30.9mm 31.6mm; Length: 350 mm (13.8inch)
✓Material: made of high strength aluminum alloy, light weight, anti-rust and durable.
✓Pay Attention: Please measure the original bike seatpost diameter and choose the correct size before purchasing.
✓Easy installation: Unbolt your old seat and remove your seatpost then bolt on your seat to your new seat post and install it into your bike frame.
✓Compatibility: Suitable for most mountain bikes, road bikes, downhill bikes, BMX, DH, etc.

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DJC Bike Suspension Seatpost Shock Absorber Damper Post 27.2 30.9 31.6 mm, Lightweight Aluminum Body(Black Head,31.6mm)

✓Spring Coil Suspension: Build-in spring coil and damper rubber absorb the vibration while riding, the seat post comfort your riding experience, improve the shocks. Rebound force adjustable by tighten or loose the bottom screw. Suspension travel 42mm/ 1.65inch.
✓Pay Attention to Diameter Before Buy.Wrong diameter will not able to install,27.2mm/28.6mm/30mm/30.4/30.9/31.6/33.9 they are different and not exchangeable. You can see your seatpost diameter if you take out it from the bike frame.
✓Clamp Angle Adjustable: Saddle clamp angle can adjust in -5 degree to +18 degree. Clamp offset 14mm.
✓Excellent Quality: Produced by world famous bike components supplier HL CORP and comply to international bicycle safety standard ISO 4210. Full aluminum 6061 body ensure the lightweight, 27.2mm weight 498g/ 1.1lbs, 31.6mm weight 508g/ 1.2lbs. Surface anodized.
✓2 Years Coverage: We are confident to the product quality and offer 2 years coverage. It fit for riders weight 50kg/ 110lbs to 100kg/ 220lbs(Clockwise the bottom screw if you are heavy, anticlockwise it if you are lightweight).

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