Best Seat Posts Deals Online in the UK (10 Deals Found)

Last Updated - 01/02/2026 Sort By:

Best Choice
ENGWE MTB

New
Bike Seatpost 27.2/30.9/31.6mm Bicycle Seat Post, 350mm/400mm Length Aluminum Alloy Bicycle Seat Tube, Suspension Seats
PAY ATTENTION: Please measure the diameter of the original seat post before purchasing and choose the same size of the o

£12.99
Best Value
PLATTBK

New
PLATTBK Bike Seat Post 25.4/27.2/28.6/30.9/31.6 350mm Aluminum Alloy Road Bike MTB Seatpost(30.9MM)
【PAY ATTENTION】Please measure and confirm the exact post diameter required for your bike.

£15.99
Azarxis

New
Azarxis Bike Seat Post Seatpost 25.4 27.2 28.6 30.4 30.8 31.6 x 350mm Aluminum Alloy MTB BMX Seat Post Tube Bicycle Sadd
🌵 MATERIAL - The seatpost is made of 6061 aluminum alloy, high strength, strong and durable, good corrosion resistance

£12.99
Cinelli

New
Cinelli Vai Seatpost - Black, 27.2mm
Innovative 2 screw locking system - simultaneously adjust the angle and set back

£21.99
NEUSID

New
Bike Seat Post, 27.2 mm Bicycle Seatpost Carbon Steel Seat Tube Saddle Pole Length 300 mm for BMX Fixed Gear MTB Road Mo
HIGH STRENGTH MATERIAL: The bike seat post is made of carbon steel, which is strong and durable. With black coating, nic

£6.99
ENGWE MTB

New
Bike Seatpost 27.2/30.9/31.6mm Bicycle Seat Post, 350mm/400mm Length Aluminum Alloy Bicycle Seat Tube, Suspension Seats
PAY ATTENTION: Please measure the diameter of the original seat post before purchasing and choose the same size of the o

£12.99
KREMORV

New
KREMORV Bike Seatpost Length 400mm Bicycle Seat Post Aluminum Alloy for Mountain Bike Road Bike Fixed Gear BMX
【PAY ATTENTION】Saddle clamp is not included.Please do measure the actual outer diameter then choose the actually require

£9.99
KREMORV

Used
KREMORV Bike Seatpost Length 400mm Bicycle Seat Post Aluminum Alloy for Mountain Bike Road Bike Fixed Gear BMX
【PAY ATTENTION】Saddle clamp is not included.Please do measure the actual outer diameter then choose the actually require

£8.49
ENGWE MTB

New
Bike Seatpost 27.2/30.9/31.6mm Bicycle Seat Post, 350mm/400mm Length Aluminum Alloy Bicycle Seat Tube, Suspension Seats
PAY ATTENTION: Please measure the diameter of the original seat post before purchasing and choose the same size of the o

£12.99
20% Off
GEWAGE

New
GEWAGE Bicycle Seat Post, Spring Seatpost Loaded for 27.2/30.9/31.6 x 400 mm,Seatpost Made of Aluminium Alloy for MTB Ro
【Shock Absorbing Design】: Built-in spring spiral and damper rubber absorb the vibration while riding, the seat post soot

£23.99 £29.99

10 Seat Posts deals are available from: Amazon stores, starting from £6.99.
The biggest discount we found is 20% on GEWAGE Bicycle Seat Post, Spring Seatpost Loaded for 27.2/30.9/31.6 x 400 mm,Seatpost Made of Aluminium Alloy for MTB Road Bike BMX eBike (Ø31.6mm) at Amazon.
The lowest price we found is £6.99 while the highest is £23.99.
Prices for the best Seat Posts deals average at £13.94.
Last updated on February 1, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Seat Posts.