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Seatposts

Modern bike seatposts are built from various materials, with alloy and carbon being the two most common. A quality alloy seatposts will boast a  lightweight profile, whilst also benefiting from being durable and cost efficient. A high-end carbon post is a necessary components for serious cyclists looking to squeeze every last bit of performance out of their machine. Competitive cyclists needing to precisely adjust their seatpost height on the fly should browse our range of dropper posts.
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  • Neo 31.6mm Suspension Seatpost (2021)
    £53.99 RRP £59.99 | Save £6.00
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  • HollowGram SAVE 27.2mm Seatpost (15 Degree Offset)
    £121.99 RRP £134.99 | Save £13.00
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  • Duncan SL Seatpost (10mm Offset)
    £162.99
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  • Duncan SL Seatpost (25mm Offset)
    £164.99
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  • Single Bolt Seatpost Upper Clamp (Upper)
    £20.00
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  • Single Bolt Seatpost Lower Clamp (Lower)
    £20.00
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  • ReMote Dropper Lever - Limited Edition
    From £76.00
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  • ReMote Light Action Dropper Lever - Limited Edition
    From £76.00
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  • Turbine R 1x Dropper Remote
    £79.95
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  • Remote Light Action Replacement Lever
    £26.00
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  • KindShox i950 Seatpost - 31.6 (No Remote)
    £220.00
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  • Thudbuster LT Suspension Seatpost
    £199.99
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  • Thudbuster ST Suspension Seatpost
    £184.99
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  • Thudglove LT
    £16.99
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  • Thudglove ST
    £16.99
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  • Thudbuster LT Rebuild Kit - Parts Only
    £21.99
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  • Thudbuster LT Rebuild Kit - Parts & Tools
    £39.99
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  • Thudbuster ST Rebuild Kit - Parts and Tools
    £39.99
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  • Thudbuster ST Rebuild Kit - Parts Only
    £21.99
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  • Masterpiece Carbon Seatpost - 350mm
    £250.00 Installment offers from £20.84/mo
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  • Elite Seatpost - Inline
    £95.00
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  • Elite Seatpost - Setback
    £95.00
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  • Masterpiece Seatpost - Inline
    £155.00
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  • Masterpiece Seatpost - Setback
    £155.00
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  • Masterpiece Ti Seatpost
    £315.00
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  • Covert Elite Dropper Seatpost
    £450.00 Installment offers from £37.50/mo
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  • FL1.0 Seatpost With 25mm Layback
    £130.00
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  • Plasma 6 Duncan 1.0 Tri Seatpost
    £269.99 Installment offers from £22.50/mo
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  • Replacement Air Cartridge For Syncros 2.5 Dropper Seatpost
    £50.00
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  • Replacement Base For Syncros 2.0 Dropper Post
    £25.00
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  • Replacement Air Cartridge For Syncros 2.0 Dropper Seatpost
    £70.00
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  • HollowGram 27 KNOT Alloy Seatpost
    £69.99
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  • KNOT 27 Saddle Rail Clamps And Hardware
    £22.99 RRP £24.99 | Save £2.00
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  • D Shaped Silicone Seatpost Grommet
    £5.99
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  • Manic Dropper Seatpost
    From £220.00
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  • Syncros Dropper 2.5 Seatpost Seal Service Kit
    £40.00
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  • Seal Service Kit For Duncan 2.5 Seatpost
    £40.00
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  • Air Cartridge Service Kit For Duncan Seatpost
    £50.00
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  • Air Cartridge Service Kit For Duncan 2.5 Seatpost
    £35.00
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  • Seal Service Kit For Syncros 2.0 Dropper Seatpost
    £40.00
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  • Satori SP-Trident 31.6mm Seatpost
    £30.00
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  • Satori SP-Trident 27.2mm Seatpost
    £30.00
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  • Revox Team 27.2mm Seatpost
    £130.00
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  • SP-629 27.2x350mm Seatpost
    £30.00
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  • Kiez Dirt Pivotal Seatpost (2018)
    £30.00
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  • Encore Team Manitou Jack Dropper Seatpost (2017)
    £350.00 Installment offers from £29.17/mo
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  • Revox Team Seatpost (2017)
    £120.00
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  • Prime RS 350mm Seatpost (2017)
    £130.00
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View 48

At Westbrook Cycles, we understand that the Seatpost of a bike is far from the most exciting part - but, like with many bike components it plays a vital role behind the scenes. As well as providing an important role within the comfort of your bike - the seatpost is also another kay component which can be upgraded in order to save weight. 

Most seatposts follow the same design principles, with a hollow tube constructed from aluminium or carbon fibre - onto the top of which the seat sits. Variations available in standard format includes seatpost diameter, seatpost length, as well as the aforementioned materials, and finally the clamp type. 

One of the most important considerations when buying your next seatpost, is the diameter of the seat post - and how this diameter works with your bike frame. The diameter must fit the internal diameter of your frame - which is typically 27.2mm on a standard frame, or either 30.9mm or 31.6mm on an oversized frame. 

Another consideration to make, is the length of the seatpost that you require. Although this is largely determined by your height - the longer the seatpost, the greater the comfort. Seatposts also need to have a minimum amount of the seatpost inside of the frame, to avoid cracking and snapping. To make this easier to understand, many bike frames have a minimum seatpost market on the side of the frame. 

Returning back to materials - aluminium and carbon fibre at the two most popular seatpost materials. Carbon fibre is the preferred option where budget permits - as well as being lighter than any other material, carbon fibre is also the best material for soaking up bumps and vibrations from the road. Specialist seatposts include suspension seatposts, layback seatposts, dropper seatposts and aero seatposts - which are covered in different categories across our site. 

You can view our full range of seatposts here, and as always - if you have any questions at all about the collection - please do just get in touch and we will be more than happy to answer any questions that you may have.

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