Top 10 400mm Seat Post – Bike Seat Posts

As an Amazon Associate I earn from qualifying purchases.



FOMTOR Bike Seatpost 27.2 400mm Adjustable Long Seat Post Mountain Bike Seatpost for MTB Road Bike Folding Bike BMX

FOMTOR #ad - Made of high quality 6061 aluminium alloy. Light weight068lb only, never rust and never bend. Strength: 4. 9 levels ultra high strength, maxium of 580lbs. Fit for frame seatpost hole diameter:27.

2mm. Post length:400mm. Thickness:2. 5mm. Setback: 0 °/0mm. How to choose the size:1. Check the diameter of the original seatpost, choose the same size as the original diameter. 2. Measure the inside diameter of the frame tube. This 400mm long seatpost will help you to get better ride height on a relatively low bicycle. With adjustable head, convenient to install. Seat angle is adjustable. Suitable for most mountain bikes, track bike, DH, BMX, MTB, Folding bikes, Road bikes, downhill bike, etc. Tips:please confirm the seat post diameter of your bike before you buy it.
BrandFOMTOR #ad
ManufacturerFOMTOR #ad
Height3.5 Centimeters
Length400 Millimeters
Part NumberF0424_27.2

2. Bynccea


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

Bynccea #ad - 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. 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. Bynccea mtb seatpost with adjustable head, convenient to install. Material:forged aluminum alloy 6061 T6. Mountain bike seatpost size: 27. 2mm/309mm/31. 6mm, total length: 400mm.
BrandBynccea #ad
ManufacturerBynccea #ad
Part NumberSeatpost-7



ONIPAX Forged Aluminum Seatpost 400mm 27.2mm Black

ONIPAX #ad - Suitable for mountain bikes, road bike, fixed gear, track bike, etc. Sand blasting and Anodized Finish. Material: forged aluminum 6061 T6. Before you order: please check the diameter of the original seatpost, or Measure the diameter of the original seatpost. Quick and easy to install: Only 4 Steps to install a saddle. Length: 400mm / diamater : 27. 2mm & 31. 6 mm.
BrandONIPAX #ad
ManufacturerONIPAX #ad
Part NumberSP2-01

4. SR Suntour


SR Suntour SP12 NCX Suspension Seat Post with Protective Cover 31.6X400mm,Black, VK2353

SR Suntour #ad - Oem package this item is exactly as pictured and does not include retail package. Travel: 50mm. Length: 400mm. System: Brass bushing parallelogram system. Contents : 1 pc/pack.
BrandSR Suntour #ad
ManufacturerSR Suntour #ad
Height3.15 Inches
Length16.54 Inches
Width3.54 Inches
Part NumberSR Suntour



UPANBIKE Bike Seatpost Aluminum Alloy Adjustable Seat Post 400mm Length Diameter 25.4/27.2/28.6//30.9/31.6mm for Mountain Bike Road Bicycle27.2mmblack

UPANBIKE #ad - To fit frame seatpost hole:27. 2mm. Clamp is adjustable for the saddle tilt angle. Material:strong aluminum alloy, durable and light weight. Replacement seatpost for most bike, such as:mountain bike, road bike, universal bikes. Extra long:15. 7"40cm;help to raise height of saddle, so that tall rider don't have to bent much forward.
ManufacturerUPANTECH #ad
Weight0.67 Pounds
Part Number50-187-1-1



Bike Seat Post 25.4 x 400mm Alumium Alloy Adjustable Long Seatpost for MTB Road Bicycle BMX

BLOOKE #ad - Size: seat post diameter:25. 4mm, fit for 1" diameter frame seatpost hole. Length:400mm. Thickness: 2. 5mm. According to your own requirements, you can change the seat angle to get better riding comfort.

Tip: please confirm the seat tube diameter of your bicycle before use. Simple operation and convenient installation. Material: constructed of ultra light and strong 6061 T6 aluminum alloy. Exquisite workmanship, light weight and durable. Polished anodized treatment, escort your riding. Adjustable seatpost: the bicycle shock absorber seatpost is equipped with a bolt chuck.

You can easily clamp the saddle. Application: suitable for most bicycles, downhill bikes, fixed gear bikes, track bikes, mountain bikes, such as road bikes, mountain bikes and BMX. Accurate scale: our bicycle seatpost is engraved with a clear scale, which is convenient to adjust the length of the seatpost to reach the height that suits you.
BrandBLOOKE #ad
ManufacturerBLOOKE #ad
Part NumberRnry-SP-25.4



UPANBIKE Bicycle Seatpost Length 400mm Aluminum Alloy Adjustable Bike Seatpost for Mountain Bike,Road Bike (28.6mm,Black

UPANBIKE #ad - Extra long:15. 7"40cm. Tube outter diameter: 25. 4mm, 27. 2mm, 309mm, 28. 6mm, 31. 6mm. Clamp is adjustable for the saddle tilt angle. Tube thickness:2mm. Material:strong aluminum alloy, durable and light weight.
ManufacturerUPANBIKE #ad
Part NumberBL187-N-1AMUS

8. SR Suntour


VK1920-N, SR Suntour SP12 NCX Suspension Seat Post with Protective Cover 31.6X400mm,Black

SR Suntour #ad - Oem package this item is exactly as pictured and does not include retail package. Contents : 1 pc/pack. Length: 400mm. Travel: 50mm. System: Brass bushing parallelogram system.
BrandSR Suntour #ad
ManufacturerSR SUNTOUR #ad

9. Ritchey


2020 Model, 400mm, Ritchey Comp 2-Bolt Seatpost: 27.2mm, Black

Ritchey #ad - Wide clamping system to increase the support surface of the trolley on the saddle tube. Offset: 25 mm. Tightening of 2-screw saddle rails for easy and efficient adjustment and a balance between weight and strength. 3d forged one-piece construction. Material: aluminium 6061.
BrandRitchey #ad
ManufacturerRitchey #ad
Height3 Inches
Length19 Inches
Weight0.85 Pounds
Width6 Inches
Part Number41035317051

10. Kindshock


Remote: No Remote, Kindshock eTen i, 27.2mm, Dropper Seatpost, Travel: 100mm, Offset: 0mm, 400mm, Black

Kindshock #ad - Eten-i rounds out the lower end of the ks internally routed dropper post spectrum with a post that is perfect for new riders just getting used to the idea of on-the-fly seat height adjustment or more experienced riders looking for a value-priced solution. Eten-i uses the same head and cartridge as the Eten Remote but moves the cable interface to the bottom of the post for compatibility with frames accommodating internally routed cables. Sport type: Cycling.
BrandKindshock #ad
ManufacturerKind Shock #ad
Height1.07 Inches
Length15.75 Inches
Weight1.8 Pounds
Width1.07 Inches
Part NumberC250-100-27.2