Trek

Trek is one of the world's most iconic bicycle brands — an American manufacturer founded in Waterloo, Wisconsin in 1976, producing road, mountain, hybrid, and e-bikes for cyclists at every level from beginner to professional. Trek bikes are ridden by Tour de France winners, World Cup mountain bike racers, and...

Trek is one of the world's most iconic bicycle brands — an American manufacturer founded in Waterloo, Wisconsin in 1976, producing road, mountain, hybrid, and e-bikes for cyclists at every level from beginner to professional. Trek bikes are ridden by Tour de France winners, World Cup mountain bike racers, and millions of everyday cyclists worldwide, with a product range that spans entry-level trail bikes to flagship carbon race machines. At Swinnerton Cycles, we stock Trek bikes, frame parts, and accessories for cyclists looking for one of the world's most trusted and recognised bicycle brands.

Our Trek range includes the Marlin 4 Gen 3 mountain bike — Trek's entry-level hardtail MTB designed for trail riding with a durable, adaptive frame — alongside genuine Trek frame parts and accessories including full suspension rocker pivot bolts and water bottle nutsert plugs for maintaining and repairing Trek bikes.

Why Choose Trek?

  • American bicycle brand founded in Waterloo, Wisconsin in 1976
  • Ridden by Tour de France winners and World Cup mountain bike racers worldwide
  • Marlin 4 Gen 3 entry-level hardtail MTB with durable, adaptive frame for trail riding
  • Genuine Trek frame parts including M10x1mm full suspension rocker pivot bolts
  • Water bottle nutsert plug M4 x 13mm for secure bottle cage mounting on Trek frames
  • One of the world's most trusted and recognised bicycle brands across all disciplines

Top Selling Trek Products

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  • Trek Powerfly Charge guide for 2018 Powerfly hardtail frame, bike component designed for frame integration.Trek Powerfly Charge guide for 2018 Powerfly hardtail frame, bike component for frame integration and cable management.

      Trek Powerfly Charge Guide for 2018 Powerfly Hardtail Frame Integration

      Upgrade your 2018 Powerfly Hardtail with the Trek Powerfly Charge Guide. Designed for seamless frame integration, it ensures durable performance and easy maintenance. What It’s Good For Enhancing frame hardware reliability Compatible specifically with 2018 Powerfly Hardtail models Supports smooth operation and longevity of...
      £6.99
      £6.99
    • Black Trek FX Carbon IsoSpeed Kit for 2018+ FX Sport bikes, replacement component for smooth ride performance.Trek FX Carbon IsoSpeed Kit in black for 2018+ FX Sport bikes, featuring replacement components for bike suspension upgrade.

        Trek FX Carbon IsoSpeed Kit for 2018+ FX Sport Bikes – Replacement Parts Black

        Upgrade your Trek FX Sport carbon bike with the FX Carbon IsoSpeed Kit. This kit includes all replaceable parts, ensuring smooth performance and extended frame life. Designed specifically for 2018+ Trek FX Sport carbon models, it seamlessly restores your bike’s comfort and efficiency. What...
        £39.99
        £39.99
      • Trek Domane ALR IsoSpeed covers replacement spares and accessories for bike components, shown close-up image.Trek Domane ALR IsoSpeed covers replacement spares and accessories for bike components, shown in a close-up image.

          Trek Domane ALR IsoSpeed Covers Replacement Spares & Accessories for Bike - Viper Red

          Upgrade your Trek Domane ALR with original IsoSpeed covers designed for a perfect fit. These colour-matched spares ensure seamless compatibility and maintain your bike’s sleek look. What It’s Good For Replacing worn or damaged IsoSpeed covers Maintaining the bike’s original aesthetic and performance Ensuring...
          from £29.00
          from £29.00
          • Viper Red
          • Solid Charcoal
          • Dnister Black
          • Trek White
        • Trek Full Stache 29 Rocker Links replacement components for suspension, showing close-up of black metal links with Trek branding.Trek Full Stache 29 rocker links replacement components for suspension, featuring durable metal links with Trek branding.

            Trek Full Stache 29 Rocker Links Replacement Parts & Accessories for Suspension - Teal

            Upgrade your Trek Full Stache 29 with genuine Rocker Links spares. Designed for durability and perfect fit, these components maintain optimal bike performance. Easy to install and crafted to match original specifications, they ensure smooth suspension function and extended frame life. What It’s Good...
            from £91.00
            from £91.00
            • Teal
            • Olive Grey
          • Trek Full Stache 29+ aluminum seatstay replacement for 2020 mountain bike components, showing the silver seatstay part.Trek Full Stache 29+ aluminum seatstay replacement for 2020 model mountain bike, showing the component's sleek metal design.

            Trek Full Stache 29+ Aluminum Seatstay Replacement for 2020 Model Bike Parts - Teal, Miami Green

            Upgrade your Trek Full Stache 8 with this durable aluminum seatstay. Designed for strength and lightweight performance, it perfectly matches your bike's teal/miami green style. What It’s Good For Enhances frame durability and stability Lightweight design for improved ride quality Seamless color match with...
            £459.99
            £459.99
            • Teal, Miami Green
            • Olive Grey, Volt
          • Trek Boone Gen 2 bike frame parts and accessories, including components and spares for bike upgrades, arranged on a white background.Trek Boone Gen 2 bike frame parts and accessories, including components and spares for bike upgrades, displayed on a white background.

              Trek Boone Gen 2 Frame Parts, Spares & Accessories for Bike Upgrades

              Upgrade your bike with the Trek Boone Gen 2 Frame Parts for enhanced performance and durability. Designed to fit perfectly, these components ensure smooth rides and reliable support. Crafted by Trek, these spares and accessories maintain the high standards of your bike’s frame. Perfect...
              £174.00
              £174.00
            • Trek Powerfly FS 2018 mountain bike seatstay spare component for bike maintenance, showing a close-up of the bike part.Trek Powerfly FS 2018 mountain bike seatstay spare part for maintenance, showing the bike component with detailed metal finish.

              Trek Powerfly FS 2018 Seatstay Spares & Accessories for Mountain Bike Maintenance - Battleship Blue

              The Trek Powerfly FS 2018 Seatstay Spares & Accessories are precision-engineered components designed to sustain and enhance the performance of your Trek Powerfly FS 2018 mountain bike. These seatstay parts offer a perfect fit and exceptional durability, ensuring your bike frame maintains its structural...
              £459.99
              £459.99
              • Battleship Blue
              • Purple Flip
            • Trek Fuel Ex MTB chainstay spare parts and accessories, compatible with 29/27.5+ through shaft for mountain bike maintenance.Trek Fuel Ex 29/27.5+ MTB chainstay spares and accessories, compatible with thru shaft, for mountain bike maintenance.

              Trek Fuel Ex 29/27.5+ Thru Shaft Compatible Chainstay Spares & Accessories for MTB - Battleship Blue

              Maintain the exceptional performance of your Trek Fuel Ex mountain bike with the Trek Fuel Ex 29/27.5+ Thru Shaft Compatible Chainstay Spares & Accessories. Designed specifically for both 29-inch and 27.5+ wheel sizes, these components offer a seamless fit that preserves the integrity of...
              £519.99
              £519.99
              • Battleship Blue
              • Purple Flip
            • Trek Session Carbon 27.5 2018 chainstay in Viper Red for 27.5-inch tires, bike component with sleek carbon finish.Trek Session Carbon 27.5 chainstay in Viper Red for 27.5-inch tires, showcasing durable mountain bike component

                Trek Session Carbon 27.5 2018 Chainstay Viper Red for 27.5" x 2.5" Tires

                The Trek Session Carbon 27.5 2018 Chainstay in striking Viper Red is a meticulously engineered component designed to elevate your mountain biking experience. Crafted by Trek, a leader in cycling innovation, this chainstay blends exceptional strength with a lightweight carbon construction. It’s tailored for...
                £699.99
                £699.99
              • Trek Session Carbon 27.5 Viper Red chainstay for 157x12 downhill frames, showing close-up of the bike component.Trek Session Carbon 27.5 Viper Red chainstay for 157x12 downhill mountain bike frames, component part with detailed finish.

                  Trek Session Carbon 27.5 2018 Viper Red Chainstay for 157x12 Downhill Frames

                  Upgrade your 2018 Trek Session Carbon 27.5 with this original Viper Red chainstay, designed for perfect fit and durability. Crafted specifically for the Session 9.9 model, it offers a precise color match and seamless integration. Ideal for riders seeking reliable replacement parts without compromising...
                  £749.99
                  £749.99
                • Trek 2018 Boone front derailleur clamp for 2nd Gen Boone bike frame, black, cycling component part.Trek 2018 Boone front derailleur clamp in black for 2nd Gen Boone bike frame components, shown on a black background.

                    Trek 2018 Boone Front Derailleur Clamp for 2nd Gen Boone Frame Parts Black

                    Enhance your Trek 2018 Boone with this front derailleur clamp designed for a secure, precise fit. Crafted specifically for 2nd generation Boone frames, it ensures smooth shifting performance. Durable and easy to install, this component maintains your bike's integrity while optimizing drivetrain efficiency. A...
                    £24.99
                    £24.99
                  • Placeholder image

                      Trek Speed Concept 2011 Seatpost Reflector Mount Spare Parts & Accessories

                      Upgrade your Trek Speed Concept seatpost with these reliable reflector mounts. Designed for first- and second-generation models, they ensure safety and visibility. Durable and easy to install, these mounts keep your reflector securely in place during every ride. What It’s Good For Enhancing rear...
                      £4.00
                      £4.00
                    • Black Trek Madone handlebar stem pinchbolt insert nut M5 x 10.7mm replacement component on a bicycle.Trek Madone handlebar stem pinchbolt M5 insert nut in black, 10.7mm replacement component for bike assembly.

                        Trek Madone Handlebar Stem Pinchbolt Insert Nut M5 x 10.7mm Black Replacement

                        Ensure a secure fit for your Trek Madone handlebars with this genuine replacement pinchbolt insert nut. Designed specifically for M5 x 10.7mm bolts, it guarantees reliable connection to the fork’s steerer tube. Crafted by Trek, this component offers durability and perfect compatibility, maintaining the...
                        £6.99
                        £6.99
                      • Trek Domane ALR IsoSpeed replacement covers for bike components, providing protection and durability for IsoSpeed system.Trek Domane ALR IsoSpeed covers, replacement protective bike components for enhanced frame durability and performance.

                          Trek Domane ALR IsoSpeed Covers – Replacement Protective Bike Part - Quicksilver

                          Keep your Trek Domane ALR bike in top condition with these original IsoSpeed covers. Designed for perfect color match and seamless fit, they maintain the bike’s sleek look. These covers protect the IsoSpeed system, ensuring smooth performance and durability over time. Easy to install,...
                          from £5.00
                          from £5.00
                          • Green Light
                          • Black
                          • Quicksilver
                          • Viper Red
                        • Black Trek Silque SLR front IsoSpeed Seal headtube cover, replacement component for bike suspension system.Black Trek Silque SLR front IsoSpeed seal headtube cover replacement component for bike suspension and frame protection.

                            Trek Silque SLR Front IsoSpeed Seal Black Headtube Cover Replacement Part

                            Ensure optimal performance and protection with the Trek Silque SLR Front IsoSpeed Seal. This black headtube cover effectively seals the front IsoSpeed decoupler and headset components, safeguarding them from dirt and moisture. Designed as an original equipment replacement, it guarantees a perfect fit and...
                            £9.99
                            £9.99
                          • Trek headbadge replacement spare with adhesive, original bike frame component, designed for easy installation and authentic look.Trek headbadge replacement spare with adhesive, original bike frame component for Trek bicycles.

                              Trek Headbadge Replacement Spare with Adhesive – Original Frame Accessory - Silver

                              Replace your worn or damaged Trek frame head tube badge with this original equipment spare. Easy to apply using the included adhesive, it restores your bike's authentic look. What It’s Good For Maintaining the original Trek frame appearance Easy installation with included adhesive Durable...
                              £6.99
                              £6.99
                              • Silver
                              • Black
                            • Trek Domane SLR grey headset compression ring for front IsoSpeed component, cycling bike upgrade part.Trek Domane SLR grey headset compression ring for front IsoSpeed components, designed for bike performance and smooth ride.

                                Trek Domane SLR Grey Headset Compression Ring for Front IsoSpeed Performance

                                Ensure your Trek Domane SLR's front IsoSpeed performs flawlessly with this Grey Compression Ring. Crafted for durability, it maintains smooth headset function and reliable frame support. What It’s Good For Maintaining smooth steering and headset performance Extending the lifespan of your Domane SLR frame...
                                £6.99
                                £6.99
                              • Black Trek Domane SLR IsoSpeed seatmast slider replacement for Domane SLR bikes, shown installed on the bike frame.Black Trek Domane SLR IsoSpeed seatmast slider replacement component for Domane SLR bikes, showcasing the sleek bike part.

                                  Trek Domane SLR IsoSpeed Seatmast Slider Replacement Black for Domane SLR Bikes

                                  Upgrade your Domane SLR with the Trek Domane SLR IsoSpeed Seatmast Slider in sleek black. Designed for seamless compatibility, it ensures smooth adjustability and optimal comfort during rides. Engineered for durability, this replacement slider enhances your bike's performance by maintaining the flexibility of the...
                                  £13.99
                                  £13.99
                                • Trek Slash 29 aluminum seatstay for 2017-2018 frames with ABP Convert Boost compatibility, bike component for mountain bikes.Trek Slash 29 aluminum seatstay for 2017-2018 frames with ABP Convert Boost compatibility, showing the bike component in detail.

                                  Trek Slash 29 Aluminum Seatstay for 2017-2018 Frames with ABP Convert Boost Compatibility - Volt

                                  The Trek Slash 29 Aluminum Seatstay offers a perfect replacement for your 2017 & 2018 Slash 29 frames. Designed for seamless integration, it comes color-matched with options in neutral black, ensuring both style and functionality. Compatible with ABP Convert hardware, it supports 148x12 Boost...
                                  £459.99
                                  £459.99
                                  • Volt
                                  • Trek Black
                                  • Magenta
                                • Trek Slash 29 aluminum chainstay for 2017-2018, boost 148x12, ABP convert, mountain bike component, black metal frame partTrek Slash 29 aluminum chainstay for 2017-2018 boost 148x12 ABP convert mountain bike component, shows close-up of the chainstay.

                                  Trek Slash 29 Aluminum Chainstay 2017-2018 Boost 148x12 ABP Convert Replacement - Roarange

                                  Upgrade your Trek Slash 29 with this original aluminum chainstay designed for 2017 and 2018 Slash 29 models. Expertly color-matched for seamless integration, it offers a direct replacement solution that maintains your bike’s performance and style. Compatible with ABP Convert hardware, it ensures smooth...
                                  £519.99
                                  £519.99
                                  • Volt
                                  • Roarange
                                  • Sandstorm
                                  • British Racing Green
                                • Trek Remedy 2017-2018 aluminum seatstay in solid charcoal, 27.5-inch size, replacement component for mountain bike frame.Trek Remedy 2017-2018 aluminum seatstay in solid charcoal for 27.5-inch bike with 2.8-inch tire clearance, component replacement part.

                                    Trek 2017-2018 Remedy 27.5 Aluminum Seatstay Solid Charcoal 27.5" x 2.8" Replacement Part

                                    The Trek 2017-2018 Remedy 27.5 Aluminum Seatstay in Solid Charcoal is a premium replacement part tailored for the Remedy 27.5 mountain bike models from 2017 and 2018. Constructed from robust aluminum, this seatstay ensures exceptional durability and strength, delivering consistent performance even on the...
                                    £439.99
                                    £439.99
                                  • Trek Remedy 27.5 aluminum chainstay for 148x12 Boost frames and ABP convert, bike components for mountain bikes.Trek Remedy 27.5 aluminum chainstay for 2017-2018 boost frames with ABP convert, shown on a mountain bike component.

                                    Trek Remedy 27.5 2017-2018 Aluminum Chainstay for 148x12 Boost Frames & ABP Convert - Viper Red, Trek Black

                                    Upgrade your Trek Remedy 27.5 with this original aluminum chainstay, designed specifically for 2017 and 2018 models. Built for durability and perfect fit, it ensures seamless compatibility with your frame and maintains the bike's performance. The sleek black finish matches your bike’s aesthetics effortlessly....
                                    £519.99
                                    £519.99
                                    • Viper Red, Trek Black
                                    • Solid Charcoal
                                  • Trek Farley EX 27.5 aluminum chainstay in Nysa Blue for 27.5-inch fat bikes, replacement component, close-up viewTrek Farley EX 27.5 aluminum chainstay in Nysa Blue for 27.5-inch fat bike, replacement component, sturdy and lightweight.

                                      Trek Farley EX 27.5 Aluminum Chainstay Nysa Blue 27.5" x 3.8" Fat Bike Replacement

                                      Upgrade your 2017 or 2018 Trek Farley EX 27.5 with this original aluminum chainstay, designed to provide durable support and maintain frame integrity. Its Nysa Blue finish perfectly matches your bike's look, with neutral black options for versatile compatibility. Crafted for 197x12 Fat Bike...
                                      £519.99
                                      £519.99
                                    • Trek Fuel EX 2017-2019 aluminum seatstay for 148x12 Boost frames with ABP convert, bike components for mountain bike frame upgradeTrek Fuel EX 2017-2019 aluminum seatstay for 148x12 Boost frames and ABP convert, bike component showing metal frame parts.

                                      Trek Fuel EX 2017-2019 Aluminum Seatstay for 148x12 Boost Frames & ABP Convert - Volt

                                      The Trek Fuel EX 2017-2019 Aluminum Seatstay offers a precise and durable replacement for your bike's rear frame component. Designed specifically for Fuel EX models from 2017 to 2019, it ensures perfect fit and performance. Available in color-matched options, including select neutral black models,...
                                      £459.99
                                      £459.99
                                      • Volt
                                      • Quicksilver
                                      • Trek Black, Grey
                                      • Dnister Black
                                    • Trek Fuel EX aluminum chainstay for 2017-2019 mountain bikes, compatible with 29, 27.5+, and 27.5 WSD Boost modelsTrek Fuel EX aluminum chainstay for 29, 27.5+, and 27.5 WSD Boost bikes, bike frame component in silver color.

                                      Trek Fuel EX 2017-2019 Aluminum Chainstay for 29, 27.5+, 27.5 WSD Boost Bikes - Trek Black, Light Grey

                                      The Trek Fuel EX 2017-2019 Aluminum Chainstay offers a perfect solution for riders looking to maintain or upgrade their bike’s performance with original replacement parts. Designed specifically for Fuel EX models from 2017 to 2019, this chainstay ensures seamless compatibility and durability. Its color...
                                      from £440.00
                                      from £440.00
                                      • Dnister Black, Solid Charcoal
                                      • Trek Black, Light Grey
                                      • Anthracite, Viper Red
                                      • Trek Black, Red
                                    • Trek Bontrager Speed Concept Base UCI legal 420mm black aerodynamic bike handlebar for road cycling components.Trek Bontrager Speed Concept Base UCI legal aerodynamic black bike handlebar, 420mm, designed for racing bikes.

                                        Bontrager Speed Concept Base UCI Legal Handlebar 420mm Aerodynamic Bike Bar Black

                                        The Bontrager Speed Concept Base UCI Legal Handlebar offers an aerodynamic design ideal for competitive cycling. Its 420 mm width ensures precise handling and control on every ride. What It’s Good For Optimizing aerodynamic performance for time trials Providing a lightweight, durable frame component...
                                        £319.99
                                        £319.99
                                      • Trek Bontrager Speed Concept base handlebar in black, 400mm, non-UCI legal bike component for aerodynamic road bike setupTrek Bontrager Speed Concept base handlebar in black, 400mm, bike component designed for aerodynamic road bike performance

                                          Bontrager Speed Concept Base Handlebar 400mm Black Non-UCI Legal Bike Part

                                          The Bontrager Speed Concept Base Handlebar delivers precision and aerodynamic design for serious cyclists. Its 400 mm width offers optimal control and comfort during high-speed rides. Crafted by Trek, this component ensures durability and compatibility with various frames and accessories. Perfect for upgrading your...
                                          £319.99
                                          £319.99
                                        • Trek Session 27.5 aluminum seatstay for mountain bike, replacement component for 2015-2021 Trek mountain bikes.Trek Session 27.5 aluminum seatstay for mountain bike 2015-2021, replacement component, black and silver finish.

                                          Trek Session 27.5 Aluminum Seatstay 2015-2021 Replacement Mountain Bike Part - Rage Red

                                          Upgrade your Trek Session 27.5 with this durable aluminum seatstay. Designed for a perfect fit from 2015 to 2021 models, it offers reliable support and enhanced frame integrity. Engineered for mountain biking enthusiasts, this seatstay ensures long-lasting performance and a sleek look. What It’s...
                                          £459.99
                                          £459.99
                                          • Rage Red
                                          • Slate, Gravel
                                        • Trek Remedy 27.5 aluminum chainstay replacement part for bike frame upgrade, showing the durable metal component.Trek Remedy 27.5 aluminum chainstay replacement part for bike frame upgrade, showing the lightweight metal component.

                                          Trek Remedy 27.5 Aluminum Chainstay Replacement Part for Bike Frame Upgrade - Rage Red

                                          Upgrade your bike with the Trek Remedy 27.5 Aluminum Chainstay for enhanced durability and performance. Designed for optimal fit and strength, it ensures smooth rides on challenging terrains. What It’s Good For Reinforcing your bike’s frame for long-lasting use Maintaining precise alignment for better...
                                          £519.99
                                          £519.99
                                          • Rage Red
                                          • Dnister Black, Solid Charcoal
                                          • Slate, Gravel
                                        • Trek Top Fuel 29 aluminum seatstay replacement frame in black and white for 29-inch wheels with 148x12 boost spacing.Black and white Trek Top Fuel 29 aluminum seatstay for 29-inch boost mountain bike frame, 148x12mm axle compatibility.

                                            Trek Top Fuel 29 Aluminum Seatstay 148x12 Boost Frame Replacement Black/White 29" x 2.2"

                                            Upgrade your Trek Top Fuel 29 with this genuine aluminum seatstay, designed specifically for the 2016-2019 models. Precision color matching in Trek Black/Trek White ensures seamless integration with your bike’s frame, maintaining its sleek appearance. Crafted for 148x12 Boost frames and wheels, this component...
                                            £459.99
                                            £459.99
                                          Recently Viewed Products

                                          Trek bikes are biking models that deliver exceptional performance, comfort and durability time and time again. Here at Swinnerton Cycles, we have a selection of Trek bikes for you to explore depending on the type of cycling adventure you want to venture on. Explore Trek e-bikes, MTB by Trek and for those who want to rack up miles on the road, we have a selection of road bikes by Trek.
                                          Trek bikes offer speed, comfort and durability

                                          Over four decades, Trek has meticulously perfected the technical expertise needed to deliver bikes of the highest quality. Within the range of Trek bikes available here at Swinnerton Cycles, you will find premium carbon crafted models that are lightweight for speed but are durable and designed to give you a ride that is controlled. 
                                          Trek bicycles for any terrain 
                                          No matter what type of terrain you like to ride on, you will find a bike within the range of Trek bikes to suit your needs. If you would like to explore the range of biking accessories to enhance your cycling experience, we have a wide range of items for you to choose from including bottle cages to hold your drinks cup to first aid kits for any accidents that may occur.

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