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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  • Giant dropper post replacement cartridge and accessories for 2022 mountain bike models, showing components and installation parts.

      Giant Dropper Post Replacement Cartridge Spares & Accessories for 2022 Models

      Maintaining the performance of your Giant dropper seatpost has never been easier with the Giant Dropper Post Replacement Cartridge Spares & Accessories. Designed specifically for 2022 models, this finishing kit is engineered to fit seamlessly with your existing seatpost, ensuring smooth and reliable operation....
      £35.00
      £35.00
    • Cane Creek Alloy Seatpost Shims for adapting 25.4mm to 33.9mm seat tubes, bicycle components and accessories.Cane Creek Alloy Seatpost Shims for adapting 25.4mm to 33.9mm seat tubes, bicycle components and accessories.

      Cane Creek Alloy Seatpost Shims for Adapting 25.4-33.9mm Seat Tubes - Spares & Accessories

      Upgrade your bike setup with Cane Creek Seatpost Shims, expertly crafted from alloy for precise fitment. These shims adapt seatposts ranging from 25.4 to 33.9mm to fit larger seat tubes seamlessly. Durable and custom machined, they ensure a secure and stable connection, enhancing your...
      £12.09
      £12.99
      £12.09
      Save £0.90
    • Aenomaly SwitchGrade Fitting Kit A components for dropper seatpost installation and adjustment, featuring metal fittings and adapters.

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

        The Aenomaly SwitchGrade Fitting Kit A is a meticulously crafted components kit designed to enhance the installation and adjustment of your dropper seatpost. With a comprehensive assortment of hardware including multiple M5 bolts of varying lengths, cylinder nuts, spherical and flat washers, dust cap,...
        £10.00
        £10.00
        • Black
      • Aenomaly SwitchGrade 2.0 EVO bike saddle angle adjustment switch component, black with control knob and mounting mechanism.

          Aenomaly SwitchGrade 2.0 EVO Saddle Angle Adjustment Switch for Bikes - Black

          The Aenomaly SwitchGrade 2.0 EVO Saddle Angle Adjustment Switch revolutionizes your riding experience by allowing you to change saddle angle effortlessly while on the move. Designed for riders seeking comfort and peak performance, this innovative component addresses common issues such as back pain and...
          £169.99
          £169.99
          • Black
        • Placeholder image

          Crankbrothers Highline Cartridge Assembly Replacement for Highline XCG Seatpost Drop Sizes

          The Crankbrothers Highline Cartridge Assembly offers a reliable replacement for your Highline XCG seatpost, ensuring smooth performance and durability. Designed to fit various drop sizes, it maintains your seatpost’s precision and comfort. Available in Short and Regular versions, it suits different setups with ease,...
          £84.99
          £84.99
        • Placeholder image

            Cane Creek Thudbuster G4 ST Elastomer Capsule 70A Shock Absorber Replacement

            The Cane Creek Thudbuster G4 ST Elastomer Capsule 70A is engineered to elevate your cycling experience by delivering superior shock absorption and comfort. Crafted with precision by Cane Creek, a leader in cycling innovation, this elastomer capsule is designed to fit seamlessly within the...
            £11.99
            £11.99
          • Fox Transfer seatpost full rebuild seal kit for 2025, compatible with 30.9-34.9mm seatposts, includes seals and components.Fox Transfer seatpost full rebuild seal kit for 2025 models, compatible with 30.9-34.9mm seatposts, includes seals and components.

            Fox Transfer Seatpost Full Rebuild Seal Kit 2025 Compatible 30.9-34.9mm

            Upgrade your Fox Transfer Seatpost with the Full Rebuild Seal Kit 2025, designed to maintain optimal performance and extend the life of your seatpost. This kit is engineered for precision, ensuring a smooth and reliable operation every time you adjust your seat height. Compatible...
            £56.95
            £56.95
          • SDG Spares & Accessories - Tellis Seatpost Upper Tube with M6 Screw SetSDG Tellis Seatpost Upper Tube with M6 Screw Set 150mm | Swinnerton Cycles

              SDG Tellis Seatpost Upper Tube 150mm with M6 Screw Set – Bike Replacement Part

              Upgrade your bike with the SDG Tellis Seatpost Upper Tube, designed for durability and smooth performance. This 150mm component comes with an M6 screw set for easy installation and secure fitting. Crafted to enhance your riding experience, the seatpost offers reliable support and a...
              £65.95
              £65.95
            • KS Suspension Southpaw-Alloy underbar remote dropper lever with 22.2mm clamp, bike component for easy seat post height adjustment

                KS Suspension Southpaw-Alloy Universal Underbar Remote Dropper Lever 22.2mm Clamp - Black

                The KS Suspension Southpaw-Alloy remote lever redefines control for 1x drivetrain setups with its sleek and ergonomic design. Crafted to deliver a secure and responsive feel, this universal alloy underbar lever fits a 22.2mm clamp, seamlessly integrating into modern cockpit layouts without adding unnecessary...
                £49.99
                £49.99
                • Black
              • Kinesis UK XF Manic cable tensioning and locking barrel with grub screw for bike components, shown in close-up.Kinesis UK XF Manic cable tensioning and locking barrel with grub screw for bike components, shown in close-up detail.

                  XF Manic Cable Tensioning and Locking Barrel with Grub Screw for Bikes

                  The XF - Manic Cable and Locking Barrel from Kinesis UK ensures secure and reliable cable tensioning for your bike. Crafted for durability, it includes a grub screw for firm locking, making maintenance straightforward. Designed as a finishing kit component, it fits seamlessly with...
                  £6.00
                  £6.00
                • Blue PRO Pro Performance 34.9mm bike seatpost clamp, durable component for securing bike seats.Blue PRO Pro Performance 34.9mm bike seatpost clamp, durable component for securing bike seatposts.

                  Pro Performance 34.9mm Seatpost Clamp Blue – Durable Bike Spare Accessory - Black

                  The Pro Performance Seatpost Clamp 34.9Mm Blue offers a sleek, durable solution for secure seatpost attachment. Crafted from lightweight 7075 alloy, it ensures strength without added weight. Equipped with a stainless steel nut and bolt, this clamp promises long-lasting performance and resistance to wear....
                  from £16.74
                  £17.99
                  from £16.74
                  Save £1.25
                  • Blue
                  • Black
                • Fox Kashima seatpost upper post replacement component for smooth bike seat adjustment, compatible with Fox bike models.Fox Kashima seatpost upper post for Fox bike components, featuring smooth adjustment and high-quality construction.

                  FOX Seatpost Upper Post Kashima 2018 Replacement Part for Smooth Adjustment

                  The FOX Seatpost Upper Post Kashima 2018 enhances your bike's performance with durable, smooth operation. Designed for precise fit and long-lasting use. Its Kashima coating reduces friction, ensuring effortless seatpost movement and improved ride comfort. Ideal for upgrading or replacing your current seatpost part....
                  £109.94
                  £109.94
                • Fox Transfer seatpost index pin, 31mm diameter, spare part for bike components, with precise fitting and durable construction.Fox Transfer seatpost index pin, 31mm length with 0.0767 diameter, spare part for bike components, includes accessory for installation.

                  Fox Transfer Seatpost Index Pin 31mm x 0.0767 Diameter Spare Part & Accessory

                  The Fox Transfer Seatpost Index Pin offers precise fit and reliable performance for your dropper seatpost. Crafted for durability, it ensures smooth operation and easy maintenance. Designed to match the 31mm length and 0.0767 diameter, this spare part is essential for keeping your seatpost...
                  £1.25
                  £1.25
                • Thomson Silver Spacer Kit with 20mm, 10mm, and 5mm spacers for bike stem fit adjustment, featuring silver components.Thomson Silver Spacer Kit with 20mm, 10mm, and 5mm spacers for bike stem adjustment, designed for precise bike fit.

                    Thomson Silver Spacer Kit 20mm, 10mm & 5mm for Elite Stems - Bike Fit Adjustment

                    Upgrade your bike’s fit and finish with the Thomson Spacer Kit in sleek silver. This kit includes precision-machined spacers in 20mm, 10mm, and 5mm sizes, designed to perfectly complement your setup. Crafted with attention to detail, these spacers ensure a secure and customizable stem...
                    £25.00
                    £25.00
                  • Thomson black saddle rail clamps for bike seatposts, durable and corrosion-resistant bike component replacement.Black Thomson saddle rail clamps for bike seatposts, made of durable metal, designed to secure and adjust saddle position.

                      Thomson Standard Saddle Rail Clamps Black – Durable Bike Seatpost Replacement

                      Upgrade your bike with Thomson's Standard Saddle Rail Clamps. Designed for durability and a secure fit, these black clamps ensure your saddle stays perfectly in place. Ideal for maintaining or enhancing your seatpost setup with reliable performance. What It’s Good For Securing saddles firmly...
                      £20.00
                      £20.00
                    • Thomson replacement nut, bolt, and washer set for seatpost stem maintenance, showing metallic components arranged together.Thomson replacement nut, bolt, and washer set for seatpost and stem maintenance, showing metal components on a neutral background.

                        Thomson Replacement Nut Bolt Washer Set for Seatpost Stem Maintenance

                        Keep your Thomson seatpost, stem, or collar in top condition with this Replacement Nut Bolt Washer Set. Designed for durability, these small parts ensure a secure fit and reliable performance every ride. Compatible with all Thomson models, this finishing kit offers peace of mind...
                        £6.00
                        £6.00
                      • KS Suspension dropper post paste spares and accessories for smooth seatpost performance, showing various components and tools.

                          KS Suspension Dropper Post Paste Spares & Accessories for Smooth Seatpost Performance

                          KS Suspension Dropper Spares Post Paste ensures smooth, reliable seatpost performance. This specially formulated paste reduces friction for effortless adjustment and long-lasting durability. Designed for easy application, it maintains your dropper post's efficiency and extends its lifespan with every use. What It’s Good For...
                          £9.99
                          £9.99
                        • SDG Tellis adjustable dropper remote lever with 22.2mm bar clamp and hardware spares for bike components.SDG Tellis adjustable dropper remote lever with 22.2mm bar clamp and hardware, mounted on a bicycle handlebar.

                            SDG Tellis Adjustable Dropper Remote Lever with 22.2mm Bar Clamp & Hardware Spares

                            Experience precise control with the SDG Tellis Adjustable Dropper Remote Lever, designed for 22.2mm handlebars. Crafted from forged alloy, this lever offers a lightweight yet durable solution for smooth seatpost adjustments on the fly. Its featherlight thumb actuation ensures effortless operation, while the cable...
                            £69.98
                            £69.98
                          • SDG Tellis 1X dropper seatpost lever spare component, close-up of replacement accessory for bike dropper seatposts.SDG Tellis 1X dropper seatpost lever spare and replacement component for bike dropper seatpost in black

                              SDG Tellis 1X Dropper Seatpost Lever Spare & Replacement Accessory

                              The SDG Tellis 1X Seatpost Lever offers reliable performance with a straightforward design that fits seamlessly with various dropper seatposts. Its durable build ensures smooth operation and easy cable attachment directly at the lever for convenience. What It’s Good For Compatible with multiple dropper...
                              £32.95
                              £32.95
                            • SDG Tellis seatpost seal collar and keyway assembly for bike components, replacement spares with durable metal construction.SDG Tellis seatpost seal collar and keyway assembly components, close-up view of replacement spare parts for seatpost assembly.

                                SDG Tellis Seatpost Seal Collar Bushing & Keyway Assembly Replacement Spares

                                Enhance your SDG Tellis seatpost with this Seal Collar Bushing & Keyway Assembly. Designed for durability and precise fit, it ensures smooth seatpost operation and long-lasting performance. This assembly is an essential component for maintaining the integrity and function of your seatpost, providing reliable...
                                £16.94
                                £16.94
                              • SDG Tellis seatpost clamp hardware assembly showing metal clamp and mounting components for bike seatpost adjustment.SDG Tellis seatpost clamp hardware assembly showing metal components for bike seatpost adjustment and securing.

                                  SDG Tellis Seatpost Clamp Hardware Assembly – Bike Spares & Accessories

                                  Enhance your bike’s performance with the SDG Tellis Seatpost Clamp Hardware Assembly. Designed for durability and precision, this component ensures a secure fit for your seatpost, improving ride stability. Crafted by SDG, it offers reliable finishing touches that keep your bike looking and functioning...
                                  £11.95
                                  £11.95
                                • Hope Seat Clamp Quick Release St Spares & Accessorieshope seat clamp seat clamp quick release st p134248

                                  Hope Seat Clamp Quick Release - Durable Bike Seatpost Accessory & Spares - Black

                                  Discover the Hope Seat Clamp Quick Release, designed for durability and ease of use. Crafted from high-quality materials, it ensures a secure fit for your seatpost while allowing quick adjustments on the go. Perfect for cyclists seeking reliable performance and a sleek finishing kit...
                                  £27.87
                                  £29.00
                                  £27.87
                                  Save £1.13
                                  • Black
                                  • Smoke
                                • ID Quick Release Seat Clamp component for easy seatpost adjustment, showing the metal clamp and quick-release lever.ID quick release seat clamp for easy seatpost adjustment, spare component for bike components, black metal with quick release lever

                                  ID Quick Release Seat Clamp Spare & Accessory for Easy Seatpost Adjustment - Black

                                  Experience effortless seatpost adjustments with the ID Quick Release Seat Clamp. Crafted from forged 6000 series alloy, this lightweight clamp ensures durability without adding bulk. Its sleek design includes a low-profile knurled adjuster and a low friction nylon insert for smooth operation. Designed for...
                                  £6.99
                                  £6.99
                                  • Black
                                • Dia-Compe MX1500N bike seat clamp for 28.6mm tubes with finishing kit, bicycle component part on white backgroundDia-Compe MX1500N bike seat clamp for 28.6mm tubes with finishing kit, showing the component and hardware for bike assembly.

                                  Dia-Compe Mx1500N Seatclamp for 28.6mm Tubes with Finishing Kit - Bike Spare Parts - Silver

                                  The Dia-Compe Mx1500N Seatclamp offers a classic hinged design for secure seatpost fitting. Crafted with precision, it fits 28.6mm tubes perfectly, ensuring stability and ease of adjustment. Durable and reliable, this seatclamp is an essential component for maintaining your bike's comfort and performance. Its...
                                  from £14.99
                                  from £14.99
                                  • Blue
                                  • Red
                                  • Silver
                                  • Black
                                • Ritchey WCS alloy 1-bolt rail clamp kit for bicycle saddle rails, compatible with 7x7mm, 8x8.5mm, and 7x9.6mm rails.Ritchey WCS alloy 1-bolt rail clamp kit for saddle rails, compatible with 7x7mm, 8x8.5mm, and 7x9.6mm sizes

                                  Ritchey WCS Alloy 1-Bolt Rail Clamp Kit for Saddle Rails 7x7mm, 8x8.5mm, 7x9.6mm Spares & Accessories - Black

                                  Upgrade your Ritchey WCS Alloy 1-Bolt seatpost with this complete clamp kit designed for various saddle rail sizes. Crafted from durable 7050 alloy with a stainless steel bolt, it ensures a secure and reliable fit for your saddle. Compatible with 7x7mm, 8x8.5mm, or 7x9.6mm...
                                  £24.57
                                  £26.99
                                  £24.57
                                  Save £2.42
                                  • Black
                                • Ritchey WCS Carbon 1-Bolt Rail Clamp for seatposts, lightweight bicycle component with black finish and metal bolt.Ritchey WCS Carbon 1-Bolt Rail Clamp for seatposts, close-up view of the black clamp with branding details.

                                  Ritchey WCS Carbon 1-Bolt Rail Clamps Spares & Accessories for Seatposts - Black

                                  The Ritchey WCS Carbon 1-Bolt Rail Clamps are essential spares designed to perfectly fit WCS Carbon seatposts. Crafted from durable 7050 alloy, they adapt your seatpost to various saddle rail dimensions with precision and reliability. Available in sizes 7x7mm, 8x8.5mm, or 7x9.6mm, these clamps...
                                  £17.48
                                  £17.99
                                  £17.48
                                  Save £0.51
                                  • Black
                                • Ritchey WCS Alloy 1-Bolt Rail Clamp for seatpost saddle rail attachment, lightweight bike component spare part.Ritchey WCS Alloy 1-Bolt Rail Clamp for seatpost saddle rail adaptation, lightweight alloy component for bike saddle setup.

                                  Ritchey WCS Alloy 1-Bolt Rail Clamps for Seatpost Saddle Rail Adaptation Spares - Black

                                  Ritchey WCS Alloy 1-Bolt Rail Clamps offer a precise solution to adapt your WCS Alloy 1-bolt seatposts to different saddle rail sizes. Crafted from durable 7050 alloy, these clamps ensure a secure fit and reliable performance. Available in sizes 7x7mm, 8x8.5mm, and 7x9.6mm, they...
                                  £17.48
                                  £17.99
                                  £17.48
                                  Save £0.51
                                  • Black
                                • RockShox Reverb IFP internal floating piston in grey for A1-C1 and AXS mountain bike dropper seatpost components

                                    RockShox Reverb IFP Internal Floating Piston Grey Replacement for A1-C1 & AXS Models

                                    Ensure smooth performance with the RockShox Reverb IFP Grey replacement piston. Designed for precise fit in Reverb models, it maintains optimal seatpost function. Crafted as a durable component, this internal floating piston supports consistent hydraulic pressure and reliable operation in your bike's dropper post....
                                    £8.80
                                    £9.00
                                    £8.80
                                    Save £0.20
                                  • Kinesis UK Titanium Seat Clamp v2, 34.9mm, lightweight durable bike seatpost clamp, shown on bicycle component.Kinesis UK Titanium Seat Clamp v2, 34.9mm, lightweight and durable bike seatpost clamp, shown in a natural setting.

                                      Kinesis Titanium Seat Clamp v2 34.9mm – Durable Lightweight Bike Seatpost Clamp

                                      The Kinesis Titanium Seat Clamp v2 combines strength and lightweight design for a sleek finish on your bike frame. Crafted from durable titanium, it ensures reliable seatpost security without adding bulk. Its subtle appearance complements any frame, offering both style and performance in one...
                                      £65.00
                                      £65.00
                                    • BBB Smoothlever seat clamp BSP-87 for aluminium seatposts, shown with polished metal finish and quick-release lever.BBB Smoothlever seat clamp BSP-87 for aluminium seatposts, featuring a quick-release lever and durable metal construction.

                                      BBB Smoothlever Seat Clamp BSP-87 for Aluminium Seatposts | Spares & Accessories - Black

                                      The BBB Smoothlever Seat Clamp [Bsp-87] combines durability with sleek design, crafted from 6061 T6 aluminium for lasting performance. Its quick-lift quick-release lever ensures effortless adjustments, while the smooth finish prevents any snagging or interference. Available in diameters 28.6, 31.8, and 34.9mm, it fits...
                                      from £3.91
                                      £8.99
                                      from £3.91
                                      Save £5.08
                                      • Black
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                                    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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