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 Remote Rubber PadsCrankbrothers Highline Remote Rubber Pads

      Crankbrothers Highline Remote Rubber Pads with 3M Adhesive for Grip & Comfort - Grey

      Enhance your Highline Premium Remote - Gen 2 with Crankbrothers Highline Remote Rubber Pads. These swappable pads keep your cockpit fresh and comfortable, ensuring a reliable grip every ride. Easy to install with 3M adhesive backing, they offer lasting durability and performance. What It’s...
      £7.01
      £7.99
      £7.01
      Save £0.98
      • Grey
      • Blue
      • Red
      • Orange
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      Crankbrothers Highline 3 Replacement Keyway for Dropper Post Upgrade - Black

      Upgrade your Highline 3 dropper post with this reliable replacement keyway. Designed by Crankbrothers, it ensures smooth and secure operation every ride. What It’s Good For Restores proper function to your Highline 3 dropper post Easy to install with durable, high-quality materials Maintains original...
      £24.99
      £24.99
      • Black
    • Placeholder image

        Crankbrothers Highline 11 Quill Assembly Seatpost Component for Smooth Operation

        The Crankbrothers Highline 11 Quill Assembly is a meticulously crafted component designed to optimize your bike’s seatpost functionality. Engineered by Crankbrothers, a leader in innovative cycling solutions, this assembly acts as a crucial finishing kit that guarantees smooth and reliable operation. Perfect for cyclists...
        £159.99
        £159.99
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          Crankbrothers Highline XCG 27.2 Seatpost Igus Keys Replacement Black - Black

          Upgrade your Highline XCG 27.2 seatpost with durable Igus Keys. Crafted by Crankbrothers, these keys ensure smooth adjustments and reliable performance. What It’s Good For Easy replacement for worn or lost Igus Keys Compatible with Highline XCG 27.2 seatposts Enhances seatpost adjustment precision Durable...
          £2.50
          £2.50
          • Black
        • Placeholder image

            Crankbrothers Highline XCG Cartridge Screw Black – Dropper Seatpost Replacement Part - Black

            Upgrade your seatpost with the Crankbrothers Highline XCG cartridge screw in sleek black. This essential component ensures a secure fit between the dropper cartridge and seatpost clamp, enhancing stability and performance. What It’s Good For Secures dropper cartridge firmly to the seatpost clamp Durable...
            £0.50
            £0.50
            • Black
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              Crankbrothers Highline Titanium Bolt Kit Silver for Seatpost Assembly - Silver

              The Crankbrothers Highline Ti Bolt Kit Silver is designed to elevate the functionality and durability of your seatpost assembly with precision-engineered titanium components. This finishing kit delivers remarkable strength while remaining lightweight, making it an excellent choice for cyclists who demand both performance and...
              £27.99
              £27.99
              • Silver
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                Crankbrothers Highline Quill Assembly v1 160mm for 2016-2018 Seatposts Replacement

                The Crankbrothers Highline Quill Assembly v1 160mm is a precision component designed to enhance your bike's seatpost functionality. Crafted for durability and seamless integration, it ensures a smooth and reliable ride experience. Perfectly compatible with 2016-2018 first generation posts, this assembly offers easy installation...
                £64.99
                £64.99
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                  Crankbrothers Highline Keyway Gen 1 Replacement for 160mm Seatposts 2016-2018

                  The Crankbrothers Highline Keyway Gen 1 160mm is a precise replacement part designed for Gen 1 seatposts from 2016 to 2018. Crafted to fit seamlessly, it ensures your seatpost remains secure and functional. Made by Crankbrothers, this component is built with durability and reliability...
                  £49.99
                  £49.99
                • Crankbrothers Highline 3 Quill Assembly

                    Crankbrothers Highline 3 Quill Assembly 80mm for Dropper Seatpost Upgrade

                    Upgrade your bike with the Crankbrothers Highline 3 Quill Assembly 80mm. Designed for durability and performance, it offers a sleek finish and reliable support for your seatpost setup. This component ensures a secure fit and smooth adjustment, enhancing your overall ride experience. What It’s...
                    £36.99
                    £36.99
                  • Crankbrothers Highline 2-Keyway v2

                    Crankbrothers Highline 2-Keyway v2 31.6mm Seatpost 170mm for Trail Bikes

                    The Crankbrothers Highline 2-Keyway v2 31.6mm 170mm seatpost offers precise adjustability and durability for enhanced riding comfort. Crafted with high-quality materials, it seamlessly integrates into your bike to provide reliable performance on every trail. Its advanced Keyway system ensures smooth seat height adjustments and...
                    £49.99
                    £49.99
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                      Crankbrothers Highline 11 Ring Seal Replacement for 30.9 & 31.6 Seatposts Black/Gold - Black/Gold

                      The Crankbrothers Highline 11 Ring Seal in Black/Gold offers reliable replacement for your seatpost. Designed to fit 30.9 and 31.6 sizes, it ensures smooth and secure performance. This high-quality seal enhances durability and maintains optimal function of your seatpost, making it an essential component...
                      £9.99
                      £9.99
                      • Black/Gold
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                        Cane Creek Thudbuster G4 Capsule Seatpost Shock Absorber for Bike Comfort

                        The Cane Creek Thudbuster G4 Capsule is a meticulously designed finishing kit that significantly elevates your bicycle’s comfort and performance. As a vital component within the Cane Creek range, it enhances your seatpost by providing superior shock absorption and vibration damping. This means smoother...
                        £10.99
                        £10.99
                      • Cane Creek eeSilk+ Seat Post AluminiumCane Creek eeSilk+ Seat Post Aluminium

                        Cane Creek eeSilk+ Aluminium Suspension Seat Post 27.2mm Silver 35mm Travel - Silver

                        The Cane Creek eeSilk+ Seat Post Aluminium Silver 27.2mm elevates your riding experience with its advanced suspension design, offering 35mm of travel to absorb shocks and vibrations on gravel and mixed-surface roads. Crafted from durable aluminum, this seatpost provides a lightweight yet robust solution...
                        £201.82
                        £229.99
                        £201.82
                        Save £28.17
                        • Silver
                      • RockShox Seatpost Upper Tube Assembly - 34.9, (Includes Upper Tube, Keys, Clamp Bolt Plate, And Fill Valve) - Reverb AXS B1+ (2026+)

                        RockShox Reverb AXS B1+ Upper Tube Assembly 34.9mm with Keys & Clamp Bolt Plate (2026+)

                        The RockShox Seatpost Upper Tube Assembly - 34.9 is designed specifically for the Reverb AXS B1+ (2026+) models, ensuring seamless compatibility and optimal performance. This assembly includes the upper tube, keys, clamp bolt plate, and fill valve, providing everything needed for a precise and...
                        £90.53
                        £105.00
                        £90.53
                        Save £14.47
                      • RockShox Seatpost Upper Tube Assembly - 30.9/31.6 (Includes Upper Tube, Keys, Clamp Bolt Plate, And Fill Valve) - Reverb Axs B1+ (2026+)

                        RockShox Reverb AXS B1+ Seatpost Upper Tube Assembly 30.9/31.6 with Keys & Clamp Bolt Plate

                        Upgrade your RockShox Reverb AXS B1+ (2026+) with the Seatpost Upper Tube Assembly, designed for diameters 30.9 and 31.6. This comprehensive kit includes the upper tube, keys, clamp bolt plate, and fill valve, ensuring a seamless replacement or upgrade experience. Crafted by SRAM, it...
                        £90.53
                        £105.00
                        £90.53
                        Save £14.47
                      • RockShox Seatpost Upper Piston Assembly - 34.9, (Includes Upper Piston/Valve, Shaft) - Reverb AXS B1+ (2026+)

                        RockShox Upper Piston Assembly for Reverb AXS B1+ Seatpost 34.9 (2026+)

                        Enhance the performance of your Reverb AXS B1+ (2026+) dropper seatpost with the RockShox Seatpost Upper Piston Assembly. This precision-engineered component includes the upper piston/valve and shaft, designed specifically to maintain smooth and reliable operation. Crafted by SRAM, it ensures seamless compatibility and optimal...
                        £120.69
                        £135.00
                        £120.69
                        Save £14.31
                      • RockShox Seatpost Lower Tube Assembly - 34.9, (Includes Lower Tube, Middle Base, And Contacts) - Reverb AXS B1+ (2026+)

                        RockShox Reverb AXS B1+ Seatpost Lower Tube Assembly 34.9mm (2026+) OEM Replacement

                        Upgrade your RockShox Reverb AXS B1+ (2026+) with the RockShox Seatpost Lower Tube Assembly, designed for a precise fit at 34.9mm diameter. This assembly includes the lower tube, middle base, and contacts, ensuring seamless integration and reliable performance. Crafted by SRAM, it guarantees compatibility...
                        £60.33
                        £70.00
                        £60.33
                        Save £9.67
                      • RockShox Seatpost Upper Piston Assembly - 30.9/31.6, 100mm - (Includes Upper Piston/Valve, Shaft) - Reverb Axs B1+ (2026+)

                        RockShox Reverb AXS B1+ Upper Piston Assembly 30.9/31.6mm 100mm Dropper Seatpost

                        Upgrade your RockShox Reverb AXS B1+ (2026+) dropper seatpost with the SRAM Seatpost Upper Piston Assembly, designed for 30.9/31.6mm diameters and 100mm travel. This essential component includes the upper piston, valve, and shaft, ensuring precise and reliable performance for your dropper post. Crafted to...
                        £120.69
                        £135.00
                        £120.69
                        Save £14.31
                      • RockShox Seatpost Lower Tube Assembly - 30.9, (Includes Lower Tube, Middle Base, And Contacts) - Reverb Axs B1+ (2026+)

                        RockShox Reverb AXS B1+ Seatpost Lower Tube Assembly 30.9 - SRAM OEM Parts 2026+

                        Upgrade your RockShox Reverb AXS B1+ dropper post with the Seatpost Lower Tube Assembly designed specifically for the 30.9 size. This complete kit includes the lower tube, middle base, and contacts to ensure seamless integration and reliable performance. Crafted by SRAM, it guarantees compatibility...
                        £60.33
                        £70.00
                        £60.33
                        Save £9.67
                      • RockShox Seatpost Lower Tube Assembly - 31.6, (Includes Lower Tube, Middle Base, And Contacts) - Reverb Axs B1+ (2026+)

                        RockShox Reverb AXS B1+ 2026+ Seatpost Lower Tube Assembly 31.6mm with Base & Contacts

                        The RockShox Seatpost Lower Tube Assembly is designed specifically for the Reverb AXS B1+ (2026+) model, ensuring seamless compatibility and optimal performance. This assembly includes the lower tube, middle base, and contacts, offering a complete and reliable replacement solution for your dropper seatpost. Crafted...
                        £60.33
                        £70.00
                        £60.33
                        Save £9.67
                      • Ritchey Di2 Battery Rubber Mount KitRitchey Di2 Battery Rubber Mount Kit | Swinnerton Cycles

                        Ritchey Di2 Battery Rubber Mount Kit for 26.8-27.2mm Seatposts Shimano Di2

                        Keep your Shimano Di2 Battery neatly tucked inside your seatpost with the Ritchey Di2 Battery Rubber Mount Kit. Designed to fit 26.8 to 27.2mm seatposts, it ensures a secure and discreet installation for a clean look. This finishing kit is crafted from durable rubber...
                        £9.48
                        £12.99
                        £9.48
                        Save £3.51
                      • RockShox Spare - Rear Shock Volume Reducer Kit - (Includes Two Tokens) - Sidluxe A2+ (2024+)

                          RockShox Rear Shock Volume Reducer Kit with Two Tokens for Sidluxe A2+ 2024+

                          Enhance your Sidluxe A2+ (2024+) rear shock performance with the RockShox Spare Volume Reducer Kit. This kit includes two tokens designed to fine-tune your suspension by adjusting the air volume, allowing for a more controlled and responsive ride. Crafted specifically for SRAM components, it...
                          £6.58
                          £11.00
                          £6.58
                          Save £4.42
                        • RockShox Seatpost Service Kit - 40,000 Actuations/2 Year Service (Includes Foam Ring, Inner Sealhead, Bushing, O-Rings, And Oil) - Reverb Axs B1+ (2026+)

                            RockShox Reverb Axs B1+ Seatpost Service Kit 40,000 Actuations 2026+

                            Maintain the peak performance of your RockShox Reverb Axs B1+ (2026+) seatpost with the RockShox Seatpost Service Kit, designed for 40,000 actuations or 2 years of service. This comprehensive kit includes all essential components such as a foam ring, inner sealhead, bushing, O-rings, and...
                            £40.60
                            £50.00
                            £40.60
                            Save £9.40
                          • RockShox Seatpost Service Kit - 20,000 Actuations/2 Year Service (Includes Foam Ring, Inner Sealhead, Bushing, O-Rings and Oil) - 34.9mm - Reverb AXS B1+ (2026+)

                              RockShox Reverb AXS B1+ 34.9mm Seatpost Service Kit with Seals & Oil (2026+)

                              Maintain peak performance of your RockShox Reverb AXS B1+ seatpost with this comprehensive service kit designed specifically for the 34.9mm model (2026+). Including essential components such as a foam ring, inner sealhead, bushing, O-rings, and oil, this kit provides everything needed to ensure smooth...
                              £40.60
                              £50.00
                              £40.60
                              Save £9.40
                            • RockShox Seatpost Inner Base Assembly - (Includes Inner Base, Electronic Contacts, Fixing Pins, And Safety Cap) - Reverb Axs B1+ (2026+)

                                RockShox Reverb AXS B1+ (2026+) Seatpost Inner Base Assembly with Electronic Contacts & Pins

                                Upgrade your Reverb AXS B1+ (2026+) seatpost with the RockShox Seatpost Inner Base Assembly, designed for seamless integration and reliable performance. This assembly includes the inner base, electronic contacts, fixing pins, and a safety cap, ensuring your dropper post functions smoothly and efficiently. Crafted...
                                £30.16
                                £35.00
                                £30.16
                                Save £4.84
                              • RockShox Seatpost Inner Base Assembly - (Includes Inner Base, Electronic Contacts, Fixing Pins, And Safety Cap) - 34.9mm - Reverb AXS B1+ (2026+)

                                RockShox Reverb AXS B1+ 2026+ Seatpost Inner Base Assembly 34.9mm with Electronics

                                Upgrade your RockShox Reverb AXS B1+ (2026+) dropper post with the Seatpost Inner Base Assembly designed for a precise fit at 34.9mm. This assembly includes the inner base, electronic contacts, fixing pins, and safety cap, ensuring seamless integration and reliable performance. Crafted by SRAM,...
                                £30.16
                                £35.00
                                £30.16
                                Save £4.84
                              • RockShox Seatpost Electronic Module - (Includes Collar And Electronics Module, No Battery) - Reverb Axs B1+ (2026+)

                                  RockShox Reverb AXS B1+ Electronic Seatpost Module with Collar (No Battery) 2026+

                                  Enhance your ride with the RockShox Seatpost Electronic Module, designed specifically for the Reverb AXS B1+ (2026+) models. This module includes a precision collar and the electronics unit, ensuring seamless integration with your SRAM dropper post. Please note, the battery is not included, allowing...
                                  £132.99
                                  £145.00
                                  £132.99
                                  Save £12.01
                                • RockShox Seatpost Electronic Module - (Includes Collar And Electronics Module, No Battery) - 34.9mm - Reverb AXS B1+ (2026+)

                                  RockShox Reverb AXS B1+ Electronic Seatpost Module 34.9mm Collar & Electronics

                                  Enhance your ride with the RockShox Seatpost Electronic Module, designed specifically for the Reverb AXS B1+ (2026+) with a 34.9mm diameter. This module includes the collar and electronics module but does not come with a battery, allowing you to integrate seamlessly with your existing...
                                  £132.99
                                  £145.00
                                  £132.99
                                  Save £12.01
                                • Fox Transfer Seatpost Shaft Lug 2018Fox Transfer Seatpost Shaft Lug 2018 | Swinnerton Cycles

                                    FOX Transfer Seatpost Shaft Lug 2018 Replacement Part for Smooth Seatpost Operation

                                    The FOX Transfer Seatpost Shaft Lug 2018 offers a durable and precise replacement part to maintain smooth seatpost operation. Designed for easy installation, it ensures reliable performance for your bike. Crafted with high-quality materials, this component extends the life of your FOX Transfer seatpost...
                                    £9.40
                                    £9.95
                                    £9.40
                                    Save £0.55
                                  • Fox Transfer seatpost lever top bar adjuster barrel kit for smooth component adjustment, shown in the image.Fox Transfer seatpost lever top bar adjuster barrel kit for smooth, precise gear and seatpost adjustments.

                                      FOX Transfer Seatpost Lever Top Bar Adjuster Barrel Kit for Smooth Adjustment

                                      Upgrade your FOX Transfer Seatpost with this precise Lever Top Bar Adjuster Barrel Kit. Designed for smooth and reliable seatpost adjustments, it ensures optimal performance on every ride. Crafted as a perfect finishing kit, it complements your seatpost system with durable components that enhance...
                                      £20.74
                                      £21.95
                                      £20.74
                                      Save £1.21
                                    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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