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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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  • Covert Elite Dropper Seatpost
    Now £405.00 Finance from £9.08/mo Was £450.00 | Save £45.00
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  • Plasma TT 4/5 Seatpost
    £390.00 Finance from £7.58/mo
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  • Reverb Stealth C1 Dropper Seatpost (1x Remote)
    Now £374.00 Finance from £8.38/mo Was £416.00 | Save £42.00
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  • Encore Team Manitou Jack Dropper Seatpost (2017)
    £350.00 Finance from £7.77/mo
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  • Performance Elite Transfer Dropper Seatpost (2022)
    Now £306.00 Finance from £8.82/mo Was £339.00 | Save £33.00
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  • Turbine R Dropper Seatpost
    Now £305.95 Finance from £8.82/mo Was £339.00 | Save £33.05
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  • X-Fusion HiLo Strate Dropper Seatpost - 31.6mm Diameter, 125mm Drop
    £300.00 Finance from £7.50/mo
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  • eeSilk MKII Carbon Suspension Road Seatpost
    Now £296.99 Finance from £8.56/mo Was £329.99 | Save £33.00
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  • Seatpost
    £290.00 Finance from £7.25/mo
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  • Replacement seatpost for Plasma 2
    £290.00 Finance from £7.25/mo
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  • 300mm Road Seatpost
    £290.00 Finance from £7.25/mo
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  • Plasma 3 Seatpost
    £280.00 Finance from £7.00/mo
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  • Plasma 6 Duncan 1.0 Tri Seatpost
    £269.99
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  • Plasma 3 Premium Seatpost
    £260.00
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  • Foil Premium Carbon Seatpost (2014)
    £250.00
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  • SL Speed Seatpost - 0mm Offset - 400mm Length
    Now £244.00 Was £271.00 | Save £27.00
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  • SL Speed Seatpost - 20mm Offset - 400mm Length
    Now £244.00 Was £271.00 | Save £27.00
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  • Foil WCS UD Carbon Seatpost 2011-2015
    £240.00
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  • Foil Team Issue Carbon Seatpost (2014)
    £240.00
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  • Foil Premium Carbon Seatpost (2015)
    £240.00
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  • Foil 10 Carbon Seatpost (2014)
    £230.00
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  • Foil Team Issue Carbon Seatpost (2015)
    £230.00
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  • Masterpiece Carbon Seatpost - 350mm
    Now £225.00 Was £250.00 | Save £25.00
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  • KindShox i950 Seatpost - 31.6 (No Remote)
    £220.00
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  • Manic Dropper Seatpost
    Now From £198.00 Was £220.00 | Save £22.00
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  • Foil Premium Seatpost (2016)
    £200.00
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  • Foil Team Issue Seatpost (2016)
    £200.00
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  • Carbon Seatpost For Foil/Foil Disc (2018)
    £200.00
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  • KNOT Carbon Seatpost - 330mm, 35mm Offset
    £199.99
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  • Plasma CR1 Seatpost Stubby (Short)
    £190.00
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  • Foil RC Seatpost (2017)
    £180.00
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  • Thudbuster LT Suspension Seatpost
    Now £179.99 Was £199.99 | Save £20.00
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  • Plasma CR1 Seatpost Stubby (Long)
    £170.00
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  • Thudbuster ST Suspension Seatpost
    Now £166.99 Was £184.99 | Save £18.00
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  • Duncan SL Seatpost (25mm Offset)
    £164.99
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  • Duncan SL Seatpost (10mm Offset)
    £162.99
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  • Foil 15 Carbon Seatpost (2013)
    £160.00
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  • Foil 30 Carbon Seatpost (2013)
    £160.00
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  • Foil 20 Carbon Seatpost (2014)
    £160.00
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  • Foil 10 Carbon Seatpost (2015)
    £150.00
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  • Prime RS Tri 350mm Seatpost (2017)
    £150.00
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  • Service Course SL Seatpost - 0mm Setback - 400mm Length
    Now £148.00 Was £164.00 | Save £16.00
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  • Service Course SL Seatpost - 20mm Setback - 400mm Length
    Now £148.00 Was £164.00 | Save £16.00
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  • Masterpiece Seatpost - Inline
    Now £140.00 Was £155.00 | Save £15.00
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  • Masterpiece Seatpost - Setback
    Now £140.00 Was £155.00 | Save £15.00
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  • Foil 30 Seatpost (2016)
    £130.00
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View 46

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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