Bike Seatpost Spares & Accessories

Seatpost Spares & Accessories at Swinnerton CyclesKeep your seatpost and dropper post in perfect working order with our range of seatpost spares and accessories at Swinnerton Cycles. From shims and clamp ears to saddle clamp hardware and remote lever kits, we stock the components needed to maintain and adapt your...

Seatpost Spares & Accessories at Swinnerton Cycles

Keep your seatpost and dropper post in perfect working order with our range of seatpost spares and accessories at Swinnerton Cycles. From shims and clamp ears to saddle clamp hardware and remote lever kits, we stock the components needed to maintain and adapt your seatpost setup. Seatpost shims are particularly useful when upgrading frames or seatposts with different diameter requirements. We stock seatpost spares from Cane Creek, Trek, Bontrager, and other leading brands. Browse our full Bike Seating collection and explore Dropper Seatposts and Standard Seatposts.

Popular Seatpost Spares

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  • Crankbrothers Highline 3 Quill Assembly bike seatpost finishing kit with components for 100mm seatpost installation.

      Crankbrothers Highline 3 Quill Assembly 100mm – Bike Seatpost Finishing Kit

      The Crankbrothers Highline 3 Quill Assembly 100mm is a meticulously crafted component designed to elevate your bicycle’s performance and reliability. As a finishing kit for seatposts, this assembly ensures a secure and stable connection, enhancing the overall ride experience. Its 100mm length fits a...
      £36.99
      £36.99
    • Crankbrothers Highline 3 seatpost cartridge assembly for bikes, 170mm, showing detailed components and brand logo.

        Crankbrothers Highline 3 Seatpost Cartridge Assembly 170mm for Bikes

        The Crankbrothers Seatpost Highline 3 Cartridge Assy 170mm is engineered to deliver superior performance and reliability for your bike’s seatpost system. Designed by Crankbrothers, a reputable brand known for precision cycling components, this cartridge assembly offers a seamless fit and smooth operation. Its 170mm...
        £42.99
        £42.99
      • Crankbrothers Highline 3 seatpost cartridge assembly for bike suspension, 150mm travel, showing components and branding.

          Crankbrothers Highline 3 Seatpost Cartridge Assembly 150mm for Bike Comfort

          The Crankbrothers Seatpost Highline 3 Cartridge Assy 150mm is expertly crafted to elevate your cycling experience by providing superior comfort and control. Designed with precision, this seatpost assembly ensures smooth and consistent operation, enhancing both performance and ride stability. Its 150mm length offers a...
          £42.99
          £42.99
        • Crankbrothers Highline 3 seatpost cartridge assembly for 100mm dropper post, showing the internal components and mechanisms.

            Crankbrothers Highline 3 Seatpost Cartridge Assembly 100mm Dropper Post Part

            The Crankbrothers Seatpost Highline 3 Cartridge Assembly 100mm is a meticulously crafted component designed to elevate your cycling experience. Engineered by Crankbrothers, a leader in innovative bike components, this cartridge assembly seamlessly integrates with the Highline 3 dropper post system, providing 100mm of smooth...
            £42.99
            £42.99
          • Crankbrothers Highline 3 cartridge screw replacement in black, designed for seatpost assembly components.Crankbrothers Highline 3 cartridge screw replacement in black for seatpost assembly, component part for mountain bike suspension.

              Crankbrothers Highline 3 Cartridge Screw Replacement Black for Seatpost Assembly

              The Crankbrothers Highline 3 Cartridge Screw in Black offers a precise replacement for your seatpost assembly. Crafted for durability, it ensures secure fastening and optimal performance. Designed specifically for the Highline 3, this cartridge screw is an essential component to maintain your bike's reliability...
              £1.00
              £1.00
            • Crankbrothers Highline 3 Outer Body Spares & AccessoriesCrankbrothers Highline 3 Outer Body Black | Swinnerton Cycles

                Crankbrothers Highline 3 Outer Body Replacement Part Black for Dropper Post

                The Crankbrothers Highline 3 Outer Body in Black offers a precise fit for your dropper post upgrade or repair. Designed to match various diameters and lengths, it ensures seamless compatibility with the Highline 3 range. Crafted for durability and performance, this replacement part maintains...
                £24.99
                £24.99
              • Crankbrothers Highline 3 Quill Assembly 200mm replacement seatpost component for mountain bike suspension systems.Crankbrothers Highline 3 Quill Assembly 200mm replacement seatpost component for mountain bike suspension systems.

                  Crankbrothers Highline 3 Quill Assembly 200mm Replacement Seatpost Part

                  Upgrade your Crankbrothers Highline 3 with this precise 200mm quill assembly. Designed to ensure a secure fit and smooth operation, it’s the perfect replacement part for maintaining optimal performance. Crafted with quality materials, this quill assembly offers durability and reliability, helping you extend the...
                  £36.99
                  £36.99
                • Crankbrothers Highline 3 / Xcg Replacement Clamp Screw Spares & AccessoriesCrankbrothers Highline 3 / XCG replacement clamp screw Black | Swinnerton Cycles

                    Crankbrothers Highline 3 XCG Replacement Clamp Screw Black for Seatpost Maintenance

                    Upgrade your Crankbrothers Highline 3 / XCG seatpost with this durable replacement clamp screw. Designed for a perfect fit, it ensures secure and reliable performance. Made from high-quality materials, this black clamp screw offers long-lasting strength and resistance to wear. Ideal for maintenance and...
                    £4.99
                    £4.99
                  • Bontrager XXX seatpost saddle clamp ears replacement spares for bike components, designed for secure saddle attachment.Bontrager XXX seatpost saddle clamp ears replacement components for bike saddle adjustment and secure fitting.

                    Bontrager XXX Seatpost Saddle Clamp Ears Replacement Spares & Accessories - Black

                    Upgrade your ride with the Bontrager XXX Seatpost Saddle Clamp Ears, designed specifically for Bontrager 2016 XXX seatpost and seat mast systems. These replacement saddle ears ensure a secure fit and reliable performance for your Bontrager saddles. Please verify compatibility with other saddle brands...
                    £16.09
                    £19.99
                    £16.09
                    Save £3.90
                    • Black
                  • System Ex Seatpost Clamp W/Rack Mount Spares & AccessoriesSystem Ex Seatpost Clamp W/Rack Mount Spares & Accessories | Swinnerton Cycles

                    System EX Seatpost Clamp with Integrated Rack Mount – Bike Spares & Accessories

                    Upgrade your bike with the System EX Seatpost Clamp featuring integrated rack mounts for added versatility. Crafted from extruded alloy, it ensures a lightweight yet durable fit. With a compact height of 14mm, this clamp offers a sleek profile while securely holding your seatpost....
                    from £10.99
                    from £10.99
                  • System EX Carbon Seatpost Clamp 13mm alloy bike component showing the black clamp with branding detailSystem Ex Carbon seatpost clamp 13mm alloy bike component showing a sleek black clamp with branding and textured surface.

                    System Ex Carbon Seatpost Clamp 13mm Alloy Bike Spares & Accessories

                    The System Ex Seatpost Clamp offers a precision fit with an anti-crimp design that evenly distributes pressure, protecting your carbon seatposts from damage. Crafted from durable 6061-T6 alloy, it combines strength and lightweight performance. Featuring a sleek sand blast finish in black, this 13mm...
                    £5.06
                    £6.99
                    £5.06
                    Save £1.93
                  • KS Suspension Southpaw-Alloy underbar remote dropper lever with 22.2mm clamp for 1x drivetrain mountain bike components

                    KS Suspension Southpaw-Alloy Underbar Remote Dropper Lever 22.2mm Clamp for 1x Drivetrain - Black

                    The KS Suspension Southpaw-Alloy is a top-tier traditional alloy underbar remote dropper lever designed with precision for riders seeking reliable performance and seamless integration. Its 22.2mm clamp ensures a secure fit, while the ergonomic design complements modern cockpit setups, providing comfortable and intuitive control....
                    £47.57
                    £49.99
                    £47.57
                    Save £2.42
                    • Black
                  • Fox 22.2mm remote band clamp for forks and shocks, used as a spare component for bike suspension systems.Fox 22.2mm remote band clamp for forks and shocks, bike component accessory, with metal construction and adjustable design.

                    Fox 22.2mm Remote Band Clamp for Forks & Shocks Spares Accessories

                    Upgrade your Fox suspension with this 22.2mm remote band clamp. Designed for secure attachment and smooth remote operation, it ensures reliable performance on every ride. Crafted as a durable finishing kit, this clamp fits seamlessly with your seatpost and suspension components for easy maintenance...
                    £32.95
                    £32.95
                  • Aenomaly SwitchGrade Fitting Kit D for Fox Transfer and Raceface Turbine R seatposts, components for bike suspension and seatpost setup.

                    Aenomaly SwitchGrade Fitting Kit D for Fox Transfer 2020-2024 & Raceface Turbine R Seatposts - Black

                    The Aenomaly SwitchGrade Fitting Kit D is a precision-engineered component set designed to optimize the installation and performance of compatible seatposts. Crafted by Aenomaly, a trusted name in cycling components, this fitting kit offers a comprehensive range of hardware including M5 bolts in multiple...
                    £15.00
                    £15.00
                    • Black
                  • Cane Creek Thudbuster LT rebuild kit with genuine seatpost replacement parts for bike suspension component repair.Cane Creek Thudbuster LT rebuild kit with genuine replacement components for seatpost suspension system.

                    Cane Creek Thudbuster LT Rebuild Kit – Genuine Seatpost Replacement Parts

                    Upgrade your Thudbuster LT seatpost with genuine Cane Creek rebuild parts for smooth performance. This kit includes essential bushes, pins, and shims to restore your seatpost’s damping and comfort. What It’s Good For Extending the lifespan of your Thudbuster LT seatpost Maintaining optimal suspension...
                    £22.99
                    £22.99
                  • cane creek seatpost spares eesilk 2 0 eesilk bushing kit p117438

                    Cane Creek eeSilk 2.0/eeSilk+ Seatpost Bushing Kit for Smooth Performance

                    Upgrade your ride with the Cane Creek Eesilk 2.0/eesilk+ Bushing Kit, designed for smooth seatpost performance. This essential kit ensures precise fit and durability for your seatpost. Crafted to maintain your Cane Creek seatpost's premium feel, it offers reliable support and extends component life...
                    £19.99
                    £19.99
                  • Cane Creek EESilk Post Barrel Nut | Swinnerton CyclesCane Creek EESilk Post Barrel Nut | Swinnerton Cycles

                    Cane Creek EESilk Seatpost Barrel Nut Replacement for Secure Fit and Adjustment

                    Enhance your EESilk seatpost with this high-quality Barrel Nut from Cane Creek. Designed for durability and precise fit, it ensures secure assembly and smooth adjustments. Crafted as a reliable finishing kit component, this barrel nut is an essential spare that maintains the integrity of...
                    £8.00
                    £8.00
                  • Aenomaly SwitchGrade Fitting Kit B for dropper seatpost installation and adjustment, showing components and fittings.

                    Aenomaly SwitchGrade Fitting Kit B for Dropper Seatpost Installation & Adjustment - Black

                    The Aenomaly SwitchGrade Fitting Kit B is a precision-engineered component kit designed to ensure a perfect fit and smooth operation of your dropper seatpost. Crafted by Aenomaly, a trusted brand in the cycling components industry, this kit includes all necessary hardware and composite shims...
                    £10.00
                    £10.00
                    • Black
                  • Zipp Spare - Seatpost Bolts, Nuts, Upper And Lower Clamp Service Course SL Carbon

                    Zipp Seatpost Bolts & Nuts Kit for Service Course SL Carbon Clamp – Black - Black

                    Upgrade your bike’s performance with the Zipp Spare Seatpost Bolts, Nuts, Upper and Lower Clamp Service Course SL Carbon in sleek black. Designed to seamlessly fit and secure your seatpost, these components ensure a reliable and durable connection, enhancing your ride stability. Crafted by...
                    £26.83
                    £37.00
                    £26.83
                    Save £10.17
                    • Black
                  • Rockshox Spare - Seatpost Stainless Steel Keys - Size 1 (Qty 3) - Reverb Xplr 27.2 AXS (2022+)

                    Rockshox Seatpost Stainless Steel Keys 3-Pack for Reverb Xplr 27.2 AXS 2022+

                    Upgrade your Sram Reverb Xplr 27.2 AXS seatpost with these durable stainless steel keys. Designed for precise adjustments and long-lasting performance, they ensure smooth operation. Compatible with the 2022+ models, this pack includes three keys to keep your dropper post functioning flawlessly. What It’s...
                    £4.87
                    £5.00
                    £4.87
                    Save £0.13
                  • Rockshox Spare - Seatpost Stainless Steel Keys - Size 1 (Qty 12) - Reverb Xplr 27.20 AXS (2022+)

                    Rockshox Reverb Xplr 27.20 AXS Seatpost Keys Stainless Steel Size 1 (12 Pack)

                    Upgrade your Reverb Xplr 27.20 AXS seatpost with these durable stainless steel keys. Designed for precise fit and long-lasting performance, they ensure smooth adjustments every time. What It’s Good For Reliable and corrosion-resistant stainless steel construction Perfect fit for Reverb Xplr 27.20 AXS (2022+)...
                    £12.03
                    £13.00
                    £12.03
                    Save £0.97
                  • RockShox Spare - SeatPost Spare Parts RockShox Reverb Tackle Box - Reverb A2,B1RockShox Spare - SeatPost Spare Parts RockShox Reverb Tackle Box - Reverb A2,B1: | Swinnerton Cycles

                    RockShox Reverb Seatpost Spare Parts Tackle Box for A2 & B1 Models

                    Upgrade your RockShox Reverb with the Sram Spare Tackle Box for A2 and B1 models. This essential kit offers reliable components to keep your dropper seatpost performing at its best. Designed specifically for RockShox Reverb seatposts, it ensures smooth operation and easy maintenance. Perfect...
                    £352.91
                    £360.00
                    £352.91
                    Save £7.09
                  • RockShox Spare - SeatPost Spare Parts Reverb Stealth Air Valve Assembly

                    RockShox Reverb Stealth Seatpost Air Valve Assembly Spare Part for Dropper Post

                    Ensure smooth performance with the RockShox Reverb Stealth Air Valve Assembly. This genuine Sram component offers reliable sealing and easy maintenance for your dropper seatpost. Designed to fit perfectly, it helps maintain optimal air pressure and prolongs the life of your seatpost. Easy to...
                    £17.37
                    £21.00
                    £17.37
                    Save £3.63
                  • RockShox Spare - SeatPost Spare Parts Reverb/Reverb Stealth IFP Tube 150mm Includes New, UpgradedIFP)

                    RockShox Reverb/Reverb Stealth Seatpost Spare IFP Tube 150mm Upgraded Parts

                    Upgrade your RockShox Reverb or Reverb Stealth seatpost with this 150mm IFP tube featuring the latest improved internals. Designed for smooth, reliable dropper post action, it ensures consistent performance on every ride. Manufactured by SRAM, this component is essential for maintaining your dropper post’s...
                    £40.63
                    £54.00
                    £40.63
                    Save £13.37
                  • RockShox Spare - SeatPost Spare Parts Reverb/Reverb Stealth IFP Tube 100mm Includes New, UpgradedIFP)RockShox Spare - SeatPost Spare Parts Reverb/Reverb Stealth IFP Tube 100mm Includes New, UpgradedIFP): 100MM | Swinnerton Cycles

                    RockShox Reverb/Reverb Stealth 100mm IFP Tube Replacement Seatpost Part Upgraded

                    The RockShox Reverb/Reverb Stealth IFP Tube 100mm features an upgraded internal floating piston for enhanced performance. Designed for durability and smooth operation, it ensures reliable dropper seatpost function. What It’s Good For Improves dropper post performance with upgraded IFP technology Compatible with RockShox Reverb...
                    £40.63
                    £54.00
                    £40.63
                    Save £13.37
                  • RockShox Spare - SeatPost Spare Parts Return Speed Adjuster Knob Kit, RemoteA2 - 2013 ReverbRockShox Spare - SeatPost Spare Parts Return Speed Adjuster Knob Kit, RemoteA2 - 2013 Reverb: | Swinnerton Cycles

                    RockShox Reverb A2 2013 SeatPost Return Speed Adjuster Knob Kit Spare Parts

                    Enhance your RockShox Reverb A2 2013 with this genuine Sram Return Speed Adjuster Knob Kit. Designed for precise control, it ensures smooth seatpost adjustments every ride. Durable and easy to install, this spare part helps maintain optimal performance of your dropper post. Keep your...
                    £20.67
                    £27.00
                    £20.67
                    Save £6.33
                  • RockShox Spare - SeatPost Spare Parts Post Clamp Kit - Includes Upper/Lower Clamp Plates) - Reverb & Reverb Stealth B1RockShox Spare - SeatPost Spare Parts Post Clamp Kit - Includes Upper/Lower Clamp Plates) - Reverb & Reverb Stealth B1: | Swinnerton Cycles

                    RockShox Reverb & Reverb Stealth B1 Seatpost Clamp Kit – Upper & Lower Plates

                    Ensure your RockShox Reverb dropper post functions flawlessly with this genuine Sram Post Clamp Kit. It includes upper and lower clamp plates, nuts, and bolts designed specifically for Reverb and Reverb Stealth B1 models. Built for reliability, these components provide a secure and precise...
                    £17.11
                    £21.00
                    £17.11
                    Save £3.89
                  • RockShox Spare - SeatPost Spare Parts Clamp Nut and Bolt Kit Includes Clamp Nuts and Bolts Only) Reverb & Reverb Stealth B1(2017)RockShox Spare - SeatPost Spare Parts Clamp Nut and Bolt Kit Includes Clamp Nuts and Bolts Only) Reverb & Reverb Stealth B1(2017): | Swinnerton Cycles

                    RockShox Reverb & Reverb Stealth B1 (2017) Seatpost Clamp Nut & Bolt Kit

                    Ensure your RockShox Reverb seatpost remains secure with this genuine clamp nut and bolt kit. Designed specifically for Reverb and Reverb Stealth B1 (2017) models, it offers reliable performance and easy installation. Made by Sram, these high-quality components provide a perfect fit and durability...
                    £10.42
                    £13.00
                    £10.42
                    Save £2.58
                  • RockShox Spare - SeatPost Service Strain Relief (Hydraulic Hose)- Reverb NewRockShox Spare - SeatPost Service Strain Relief (Hydraulic Hose)- Reverb New: | Swinnerton Cycles

                    RockShox Reverb New SeatPost Hydraulic Hose Strain Relief Spare Part

                    Ensure the longevity and optimal performance of your RockShox Reverb New seatpost with this genuine hydraulic hose strain relief. Designed specifically for Reverb New models, it provides essential support to prevent hose wear and damage. Crafted by Sram, this reliable component maintains the integrity...
                    £5.00
                    £5.00
                  • Rockshox Spare - Seatpost Service Lower Hose Barb Assembly Kit - Reverb StealthRockshox Spare - Seatpost Service Lower Hose Barb Assembly Kit - Reverb Stealth: | Swinnerton Cycles

                    RockShox Reverb Stealth Seatpost Lower Hose Barb Assembly Kit – Spare Part

                    Ensure smooth performance with the RockShox Lower Hose Barb Assembly Kit for Reverb Stealth seatposts. Designed for easy replacement, this kit helps maintain optimal dropper function. What It’s Good For Restoring reliable hydraulic connection on Reverb Stealth seatposts Extending the lifespan of your dropper...
                    £29.11
                    £39.00
                    £29.11
                    Save £9.89
                  Recently Viewed Products

                  Maintain and upgrade your seatpost setup with our range of seatpost spares and accessories at Swinnerton Cycles. From saddle clamps and collar bolts to dropper post service kits and remote levers, we stock the components needed to keep your seatpost performing at its best. Browse our full Seatposts collection and explore Dropper Seatposts and Bike Saddles.

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