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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  • Trek Seatpost Part Speed Concept Slr Binder Assembly Black Spares & AccessoriesTrek Speed Concept SLR Seatpost Binder Assembly Black One size | Swinnerton Cycles

      Trek Speed Concept SLR Seatpost Binder Assembly Black Secure Fit One Size

      The Trek Speed Concept SLR Seatpost Binder Assembly in black offers precise and reliable seatpost adjustment for your bike. Designed for seamless integration, it ensures a secure fit and enhances overall ride performance. Crafted with durable materials, this component balances strength and weight, making...
      £29.99
      £29.99
    • seatpost parts seatpost part bontrager line elite 34 9mm cartridge bolt p103422

        Bontrager Line Elite Dropper Seatpost 34.9mm Cartridge Bolt Black One Size

        The Bontrager Line Elite Dropper post offers smooth, reliable height adjustments for your bike. Its robust 34.9mm cartridge bolt ensures secure installation and durability. Designed for riders seeking precision and performance, this seatpost combines strength with ease of use, enhancing your overall riding experience....
        £6.99
        £6.99
      • Bontrager Seatpost Part Bontrager Line Elite 34.9Mmdropper Bushing Kit Spares & AccessoriesBontrager Line Elite Dropper 34.9mm Post Bushing Kit Cream One size | Swinnerton Cycles

          Bontrager Line Elite 34.9mm Dropper Post Bushing Kit Cream One Size

          Upgrade your Bontrager Line Elite 34.9mm dropper post with this precise bushing kit. Designed for a smooth, reliable fit, it ensures optimal seatpost performance. Crafted to enhance durability, this finishing kit helps maintain your bike’s responsiveness and comfort on every ride. What It’s Good...
          £13.99
          £13.99
        • Bontrager Line Elite 34.9mm dropper post dust seal replacement in black, component for bike suspension systems.Bontrager Line Elite 34.9mm dropper post dust seal replacement in black, showcasing the component for bike maintenance.

            Bontrager Line Elite 34.9mm Dropper Post Dust Seal Replacement Black One Size

            The Bontrager Line Elite 34.9mm Dropper Post Dust Seal protects your dropper post from dirt and debris, ensuring smooth performance. Crafted for durability, it keeps your seatpost functioning flawlessly in various conditions. What It’s Good For Protecting dropper post internals from dust and grime...
            £13.99
            £13.99
          • Bontrager Line Dropper Actuator Assembly Spares & AccessoriesBontrager Line Dropper Actuator Assembly Black One size | Swinnerton Cycles

              Bontrager Line Dropper Actuator Assembly Replacement for Dropper Seat Post Black

              Maintain your Bontrager Line Dropper seat post with this original replacement actuator assembly. Designed for seamless performance and easy installation, it ensures smooth seat adjustments every ride. Regular servicing with genuine parts like this actuator assembly helps extend the lifespan of your dropper post,...
              £6.99
              £6.99
            • Bontrager Line Dropper Bump Stop Spares & AccessoriesBontrager Line Dropper Bump Stop Spares & Accessories | Swinnerton Cycles

                Bontrager Line Dropper Seat Post Replacement Bump Stop Spares & Accessories

                Keep your Bontrager Line Dropper seat post performing at its best with these original replacement parts. Designed for easy maintenance, they help extend the lifespan of your dropper post. Ensure smooth operation and reliable performance by regularly servicing your Line Dropper with these genuine...
                £3.00
                £3.00
              • Bontrager Line Dropper Cartridge Mounting Kit Spares & AccessoriesBontrager Line Dropper Cartridge Mounting Kit Black One size | Swinnerton Cycles

                  Bontrager Line Dropper Seat Post Cartridge Mounting Kit Black One Size

                  Maintain your Bontrager Line Dropper seat post with this original replacement cartridge mounting kit. Designed for easy installation, it ensures reliable function and extends the life of your dropper post. Crafted to fit perfectly, this finishing kit keeps your seat post secure and performing...
                  £3.99
                  £3.99
                • Bontrager Drop Line Dropper 30Mm Travel Reducer Spares & AccessoriesBontrager Drop Line Dropper 10 mm Travel Reducer White 30mm x 25.07mm | Swinnerton Cycles

                    Bontrager Drop Line Travel Reducer 10mm Seatpost Travel Limit 30mm x 25.07mm White

                    Optimize your ride with the Bontrager Drop Line Travel Reducer, designed to limit seatpost travel by 10 mm. Its precise 30mm x 25.07mm dimensions ensure perfect fit and enhanced control. Crafted for riders seeking a shorter seatpost setup, this white finishing kit seamlessly integrates...
                    £9.99
                    £9.99
                  • Trek Dropper Post Carbon Frame Plug Spares & AccessoriesTrek Carbon Frame Dropper Seatpost Router Plug Black Stealth Dropper Hole Plug | Swinnerton Cycles

                      Trek Carbon Frame Dropper Seatpost Router Plug Black Stealth Hole Plug

                      Ensure a sleek finish on your Trek carbon frame with this dropper seatpost router plug. Designed for stealth dropper hole compatibility, it maintains your bike’s clean look and protects internal cable routing. Crafted to fit perfectly and provide durability, this plug is an essential...
                      £3.99
                      £3.99
                    • Trek Dropper Post Aluminum Frame Plug Spares & AccessoriesTrek Dropper Post Aluminum Frame Plug Spares & Accessories | Swinnerton Cycles

                        Trek Dropper Post Aluminum Frame Plug Spare & Accessory for Cable Protection

                        Enhance your Trek Dropper Post with this durable aluminum frame plug. Designed to provide a secure and sleek finish, it ensures your cable stays protected and your bike looks sharp. What It’s Good For Protects cable entry points from dirt and damage Maintains a...
                        £2.00
                        £2.00
                      • Bontrager Line Elite Dropper Saddle Clamp Kit Spares & AccessoriesBontrager Line Elite Dropper Saddle Clamp Kit Black 36.4 mm | Swinnerton Cycles

                          Bontrager Line Elite Dropper Post Saddle Clamp Kit 36.4 mm Black

                          Enhance your Bontrager Line Elite dropper post with this premium saddle clamp kit. Designed for a secure fit at 36.4 mm, it ensures reliable seat adjustment and durability. What It’s Good For Provides a perfect fit for 36.4 mm seatposts Improves saddle stability and...
                          £14.99
                          £14.99
                        • Trek Trailer Part Trek Mt201/Mt206 Folding Arm Knob

                            Trek Trailer Folding Arm Knob Replacement for MT201 MT206 with Circlip

                            Reliable replacement folding arm knob for Trek trailers. Designed for durability and easy installation, it ensures smooth folding and secure locking of your trailer arms. What It’s Good For Restoring folding functionality on Trek MT201/MT206 trailers Easy to install with included replacement circlip Enhances...
                            £6.99
                            £6.99
                          • Bontrager XXX seatpost saddle clamp ears replacement component for bike saddle adjustment and securement.Bontrager XXX seatpost saddle clamp ears replacement spares for bike components, shown in close-up detail.

                            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...
                            £19.99
                            £19.99
                            • Black
                          • Bontrager Drop Line Cartridge Mounting Kit Spares & AccessoriesBontrager Drop Line Cartridge Mounting Kit Silver One size | Swinnerton Cycles

                              Bontrager Drop Line Silver Cartridge Mounting Kit for Seatpost One Size

                              Upgrade your Bontrager Drop Line seatpost with this sleek Silver Cartridge Mounting Kit. Designed for easy installation, it ensures a secure fit and enhances durability. Crafted to complement your bike's performance, this finishing kit provides reliable support and a polished look for your seatpost....
                              £3.99
                              £3.99
                            • Bontrager Premium Seatpost Clamp Spares & AccessoriesBontrager Premium Seatpost Clamp Spares & Accessories

                              Bontrager Premium Seatpost Clamp Spares & Accessories for Secure Fit - Black

                              Bontrager Premium Seatpost Clamp Spares offer reliable durability and precise fit for your bike. Designed to complement your seatposts perfectly, these accessories ensure secure clamping with laser-etched torque guidance. What It’s Good For Ensuring a secure and adjustable seatpost fit Compatibility with a range...
                              £12.99
                              £12.99
                              • Black
                            • Bontrager Carbon Friendly Seatpost Clamp securing bike seatpost, made of lightweight carbon-friendly components, for bike maintenance.Bontrager carbon friendly bike seatpost clamp, secure component for bike seatpost adjustment and spares, black metal finish.

                              Bontrager Carbon Friendly Seatpost Clamp – Secure Bike Seatpost Accessory Spares - Black

                              Upgrade your bike with the Bontrager Carbon Friendly Seatpost Clamp, designed for secure and reliable seatpost attachment. Crafted to protect your carbon frame while ensuring a perfect fit. Easy to install and compatible with various diameters, it offers durability and precision torque control for...
                              £9.99
                              £9.99
                              • Black
                            • Bontrager Eyeleted Quick Release Seatpost Clamp Spares & AccessoriesBontrager Eyeleted Quick Release Seatpost Clamp Spares & Accessories

                              Bontrager Eyeleted Quick Release Seatpost Clamp with Rubber Grip Lever for Rear Rack Mounting - Black

                              Enhance your bike's versatility with the Bontrager Eyeleted Quick Release Seatpost Clamp. Designed for unique frames, it features threaded eyelets for easy rear rack mounting. The quick-release lever includes a rubber grip for secure, tool-free adjustments. What It’s Good For Mounting rear racks on...
                              from £11.99
                              from £11.99
                              • Black
                            • Trek Round Alloy Seat Mast Cap & 7Mm Ears Spares & AccessoriesTrek Round Alloy Seat Mast Cap & 7Mm Ears Spares & Accessories

                                Trek Round Alloy Seat Mast Cap with 7x7mm Rail Clamp – Road Bike Spares & Accessories - Black

                                Upgrade your Trek road bike with the Trek Round Alloy Seat Mast Cap, designed for durability and precise fit. Its 2-bolt design allows independent set-back and tilt adjustments, ensuring optimal comfort and riding position. Crafted from alloy, it combines strength with lightweight performance. Compatible...
                                £84.99
                                £84.99
                                • Black
                              • Bontrager Drop Line Dropper 10Mm Travel Reducer Spares & AccessoriesBontrager Drop Line Dropper 10 mm Travel Reducer White 10mm x 25.07mm | Swinnerton Cycles

                                  Bontrager Drop Line 10mm Travel Reducer Spacer White 10mm x 25.07mm Seatpost Accessory

                                  Enhance your Bontrager Drop Line seatpost with this 10 mm Travel Reducer, designed to precisely limit travel for a better fit. Crafted for riders needing shorter seatpost travel without compromising performance. This white spacer measures 10mm x 25.07mm and integrates seamlessly with your setup,...
                                  £9.99
                                  £9.99
                                • Bontrager Rotary Head Seatpost Head Part Kits Spares & AccessoriesBontrager Rotary Head Seatpost Head Part Kits Black One size | Swinnerton Cycles

                                    Bontrager Rotary Head Seatpost Replacement Kit Black One Size Compatible 2010+

                                    Upgrade your Bontrager rotary head seatpost with this original replacement kit, designed for seamless compatibility and reliable performance. The kit includes 7 mm round seatpost ears, inner cones, bolt, and spring to ensure a perfect fit and smooth operation. Specifically made for 2010+ Bontrager...
                                    £19.99
                                    £19.99
                                  • Bontrager M10X1Mm Full Suspension Rocker Pivot Bolt Frame PartsBontrager M10X1Mm Full Suspension Rocker Pivot Bolt Frame Parts

                                      Bontrager Frame Spares for 2014 Speed Concept with Di2 Seatpost Adapter Compatibility - Carbon

                                      Bontrager Frame Spares offer high-quality components designed to enhance your bike’s performance and comfort. Featuring an OCLV aero shaft and forged alloy saddle clamps, these spares ensure durability and precision. The micro-adjust head with a thumb wheel angle indicator allows for easy and accurate...
                                      from £166.00
                                      from £166.00
                                      • Carbon
                                    • Bontrager Seatpost Clamp Spares & AccessoriesBontrager Seatpost Clamp Black 32.5 mm | Swinnerton Cycles

                                        Bontrager 32.5 mm Seatpost Clamp Black – Secure Bike Seatpost Clamp for Easy Installation

                                        Enhance your bike's fit with the Bontrager Seatpost Clamp Black 32.5 mm. Crafted for durability and a secure hold, it ensures your seatpost stays perfectly in place during rides. This sleek black clamp offers reliable performance and easy installation, making it an essential upgrade...
                                        £9.99
                                        £9.99
                                      • Bontrager Eyeleted Seatpost Clamp Spares & AccessoriesBontrager Eyeleted Seatpost Clamp Spares & Accessories

                                        Bontrager Eyeleted Seatpost Clamp for 36.4mm Seatposts with Rack Mount Compatibility Spares & Accessories - Black

                                        Enhance your bike's performance with the Bontrager Eyeleted Seatpost Clamp. Designed for a secure fit, it ensures stability and durability for your seatpost. What It’s Good For Provides a reliable clamp for 36.4 mm seatposts Includes eyeleted bolt for added security Compatible with rack...
                                        £9.99
                                        £9.99
                                        • 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 and mounting hardwareSystem EX Carbon Seatpost Clamp 13mm alloy bike component, showing the black clamp with branding detail.

                                        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...
                                        £4.73
                                        £6.99
                                        £4.73
                                        Save £2.26
                                      • Merida Silex Scultura & Scultura Endurance (Carbon Models) Spares & AccessoriesMerida Silex Scultura & Scultura Endurance (Carbon Models) Spares & Accessories

                                        Merida Silex, Scultura & Scultura Endurance Carbon Models Seat Clamp & Accessories

                                        Upgrade your Merida Silex, Scultura & Scultura Endurance carbon models with this premium seat clamp. Designed for a perfect fit, it ensures secure and reliable seatpost adjustment. Crafted to match your bike’s high-quality components, this seat clamp blends durability and style seamlessly. Easy to...
                                        £25.00
                                        £25.00
                                      • KS Suspension Southpaw-Alloy remote dropper lever with 22.2mm clamp for 1x drivetrain mountain bikes, shown with ergonomic design.

                                        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....
                                        £49.99
                                        £49.99
                                        • Black
                                      • Cane Creek eeSilk 2.0 and eeSilk+ seatpost bushing kit with press tool, bike components for smooth seatpost installation.

                                        Cane Creek eeSilk 2.0 & eeSilk+ Seatpost Bushing Kit with Press Tool

                                        Upgrade your eeSilk 2.0 or eeSilk+ seatpost maintenance with this precise bushing kit. It includes a specialized press tool for easy and accurate installation. Designed by Cane Creek, this kit ensures smooth operation and extends the life of your seatpost, making every ride more...
                                        £37.41
                                        £42.99
                                        £37.41
                                        Save £5.58
                                      • Aenomaly SwitchGrade Fitting Kit D

                                        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
                                      • Easton seatpost rail kit for round rails, durable bike saddle accessory showing metal components and mounting hardware.Easton seatpost rail kit for round rails, durable bike saddle accessory showing metal components on a bicycle saddle.

                                        Easton Seatpost Rail Kit for Round Rails – Durable Bike Saddle Accessory

                                        Upgrade your bike with the Easton Seatpost Rail Kit Round Rails for a secure fit and enhanced comfort. Designed for easy installation, this kit ensures your seatpost stays firmly in place during every ride. Crafted with durable materials, it offers reliable performance and longevity,...
                                        £14.34
                                        £14.99
                                        £14.34
                                        Save £0.65
                                      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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