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 2022 Rail 29 chainstay framestay replacement part in black olive, close-up view of the bike component.Trek Rail 29 chainstay framestay replacement part in black olive, bike component for Trek 2022 Rail 29 model.

      Trek 2022 Rail 29 Chainstay Framestay Rail Replacement Part Black Olive - Crimson, Lithium Grey

      Upgrade your Trek bike with the Framestay Rail 29 2022 Chainstay for enhanced durability and style. Designed for a perfect fit, it ensures reliable performance on every ride. Crafted with high-quality materials, this chainstay offers long-lasting strength and optimal support for your frame. Its...
      £519.99
      £519.99
      • Crimson, Lithium Grey
      • Trek Black
      • Dnister Black, Mercury
      • Black Olive, Trek Black
    • Trek Verve 4 Rib battery cover for e-bike, genuine Trek component protecting the battery and frame.Trek Verve 4 Rib battery cover for e-bike, genuine Trek component, protects the frame's battery area with durable ribbed design.

      Trek Verve 4 Rib Battery Cover – Genuine Frame Part for E-Bike Protection - Deep Dark Blue, Hex Blue

      The Trek Frame Parts Verve 4 Rib Battery Cover is expertly designed to provide reliable protection for your Verve 4 electric bike’s battery. Crafted by Trek with precision, this cover ensures a snug fit that shields the battery from dust, moisture, and impacts, helping...
      £139.99
      £139.99
      • Deep Dark Blue, Hex Blue
      • Baja Yellow, Black Chrome
    • Trek Powerfly 29 2022 battery frame cover for Bosch 625W & 500W batteries, bike components, black plastic part.Trek Powerfly 29 2022 battery frame cover for Bosch 625W and 500W batteries, bike components for electric mountain bikes.

        Trek Powerfly 29 2022 Battery Frame Parts Cover for Bosch 625W & 500W Batteries - Dnister Black, Copper

        Protect your Powerfly 29 2022 battery with this Trek Frame Parts Cover designed for seamless integration. It fits 625 W Bosch RIB batteries and 500 W batteries with a spacer, ensuring a secure and tidy setup. What It’s Good For Shielding the battery from...
        £139.99
        £139.99
        • Dnister Black, Copper
        • Radioactive Red, Trek Black
        • Solid Charcoal, Slate
        • Crystal White, Deep Dark Blue
      • Trek Allant+ 9.9 bike stem cap bolt, M6 x 30mm black stainless steel component for e-bike assembly.Trek Allant+ 9.9 black stainless steel stem cap bolt M6 x 30mm, bike component, shown installed on bicycle handlebar stem

          Trek Allant+ 9.9 Stem Cap Bolt M6 x 30mm Black Stainless Steel Bike Part

          Enhance your bike's performance with the Trek Allant+ 9.9 Stem Cap Bolt. Crafted from durable stainless steel, it ensures a secure fit and long-lasting strength. What It’s Good For Securing the stem cap tightly for safe rides Resisting corrosion with its stainless steel build...
          £4.99
          £4.99
        • Trek Allant+ 9.9 dark prismatic shield battery cover for RIB battery model, component for e-bike maintenance.Dark prismatic shield battery cover for Trek Allant+ 9.9 RIB battery model, component replacement for e-bike durability.

            Trek Allant+ 9.9 Battery Cover Dark Prismatic Shield for RIB Battery Model

            Protect your Trek Allant+ 9.9 battery with this sleek Dark Prismatic cover. Designed to fit perfectly, it ensures durability and style. What It’s Good For Shielding the battery from scratches and impacts Enhancing the bike's aesthetic with a dark prismatic finish Easy installation and...
            £139.99
            £139.99
          • Trek Allant+ 9 black chrome battery cover, a protective component for the e-bike battery access.Trek Allant+ 9 black chrome battery cover, protective component for e-bike battery access, with a sleek, durable finish.

              Trek Allant+ 9 Battery Cover Black Chrome – Protective Battery Accessory

              Protect your Trek Allant+ 9 battery with this sleek black and chrome cover. Designed for durability, it safeguards your battery from scratches and impacts. Its precise fit ensures your battery stays secure while maintaining the bike’s stylish look. Easy to install, it’s a perfect...
              £139.99
              £139.99
            • Placeholder image

                Trek Powerfly FS Seatstay 2021-2022 Deep Dark Blue 2.6" Replacement Part

                Upgrade your Trek Powerfly with this durable Seatstay in Deep Dark Blue. Designed for a perfect fit, it ensures stability and style. What It’s Good For Enhancing frame strength and durability Maintaining original bike aesthetics Providing a seamless replacement part What It’s NOT Good...
                £459.99
                £459.99
              • Trek Powerfly 29 2022 chainstay frame part for e-bike, black component with mounting points and branding visible.Trek Powerfly 29 2022 chainstay frame replacement component for e-bike, showing the metal frame part with mounting points.

                  Trek Powerfly 29 2022 Chainstay Framestay Replacement Frame Part - Dark Aquatic, Trek Black

                  Upgrade your bike with the Trek Framestay Powerfly 29 2022 Chainstay. Designed for durability and perfect fitment, it ensures optimal performance and stability. Crafted to match your frame’s specifications, this chainstay supports smooth rides and reliable handling on every trail. What It’s Good For...
                  £519.99
                  £519.99
                  • Dark Aquatic, Trek Black
                  • Crystal White, Deep Dark Blue
                  • Crimson, Lithium Grey
                  • Dnister Black, Trek Black
                • Trek Supercaliber 29 2022 medium frame replacement component for mountain bike, part of spares and accessories collection.Trek Supercaliber 29 2022 medium frame suspension linkage component for mountain bike, with black metal finish and mounting points

                    Trek Supercaliber 29 2022 Medium Framestay Replacement Part Spares & Accessories - Lithium Grey

                    The Trek Framestay Supercaliber 29 2022 Medium offers reliable replacement parts for your bike. Crafted for durability and perfect fit, it ensures your ride stays smooth and responsive. Designed specifically for the Supercaliber 29 model, it maintains the bike’s optimal performance and structural integrity....
                    £319.99
                    £319.99
                    • Lithium Grey
                    • Deep Dark Blue
                  • Trek Slash 29 Carbon seatstay replacement for MTB frame, showing close-up of the lightweight bicycle component.Trek Slash 29 Carbon Seatstay replacement component for MTB frame, lightweight and durable for 2021 Trek mountain bikes.

                      Trek Frame Spare 2021 Slash 29 Carbon Seatstay Replacement for MTB Frame - Juniper

                      Upgrade your Trek Slash 29 with this carbon seatstay for enhanced durability and lightweight performance. Designed for a perfect fit, it ensures optimal frame stability and ride quality. What It’s Good For Replacing damaged or worn seatstays Improving bike frame strength Maintaining original Trek...
                      from £459.99
                      from £459.99
                      • Juniper
                      • Deep Smoke
                      • Dope Taupe
                      • Olive Grey
                    • Trek 2021 Slash 29 Carbon chainstay frame spare for mountain bike replacement, showing the sleek carbon construction and mounting points.Trek 2021 Slash 29 Carbon chainstay frame spare for mountain bike, lightweight and durable MTB replacement component.

                        Trek 2021 Slash 29 Carbon Chainstay Frame Spare for MTB Replacement - Deep Smoke

                        The Trek Frame Spares 2021 Slash 29 Carbon Chainstay ensures durability and precision fit. Crafted for seamless integration with your Trek Slash 29 frame, it enhances performance and ride stability. Made from high-quality carbon, this chainstay offers lightweight strength and resilience. It's perfect for...
                        from £519.99
                        from £519.99
                        • Deep Smoke
                        • Battleship Blue
                        • Juniper
                        • Dope Taupe
                      • Trek 2021 Slash 29 aluminum seatstay replacement component for bike frame, showing the sleek silver finish and mounting points.Trek 2021 Slash 29 aluminum seatstay replacement component for bike frame, showing the spare frame part.

                          Trek Frame Spare 2021 Slash 29 Aluminum Seatstay Replacement Part - Hex Blue

                          Upgrade your Trek Slash 29 with this durable aluminum seatstay. Designed for 2021 models, it ensures a perfect fit and reliable performance. Crafted from high-quality materials, it enhances frame strength while maintaining lightweight agility. Ideal for maintaining your bike’s integrity after wear or damage....
                          £459.99
                          £459.99
                          • Hex Blue
                          • Mercury
                          • Miami Green
                          • Lava
                        • Trek Slash 29 Aluminum Chainstay for MTB bike frame upgrade, showing the durable component and mounting points.Trek Slash 29 aluminum chainstay for MTB bike frame upgrade, showcasing the durable frame component for mountain biking.

                            Trek Frame Spare 2021 Slash 29 Aluminum Chainstay for MTB Bike Frame Upgrade - Miami Green

                            Upgrade your Trek Slash 29 with this durable aluminum chainstay. Engineered for strength and precision, it ensures smooth power transfer and stability on every ride. What It’s Good For Enhances frame durability and performance Compatible with Trek Slash 29 models Lightweight yet robust aluminum...
                            £519.99
                            £519.99
                            • Miami Green
                            • Lava
                            • Pennyflake
                            • Mercury
                          • Trek Fuel EX 29 2022 mountain bike chainstay and framestay components, replacement parts for Trek mountain bikes.Trek Fuel EX 29 2022 mountain bike chainstay component, black carbon frame part for Fuel EX 29 model.

                              Trek Frame Parts Chainstay Framestay Fuel EX 29 2022 Mountain Bike Replacement - Carbon

                              Upgrade your bike with the Trek Frame Parts Framestay Fuel EX 29 2022 Chainstay. Designed for durability and precision, it ensures optimal performance and a perfect fit for your Fuel EX 29 model. Made from high-quality materials, this chainstay enhances the bike’s stability and...
                              £519.99
                              £519.99
                              • Carbon
                              • Carbon Blue Smoke
                              • Black Olive
                            • Trek Fuel EX 29 2022 chainstay replacement bike frame component, black metal frame part for mountain bike repair.Trek Fuel EX 29 2022 chainstay replacement bike frame component, showing the black frame part with mounting points.

                                Trek Fuel EX 29 2022 Chainstay Framestay Replacement Bike Frame Part - Deep Dark Blue

                                Upgrade your bike's durability with the Trek Fuel EX 29 2022 chainstay. Designed to fit seamlessly, it ensures optimal frame strength and performance. Crafted from high-quality materials, this framestay replacement enhances ride stability and extends the life of your bike. What It’s Good For...
                                £519.99
                                £519.99
                                • Deep Dark Blue
                                • Dnister Black
                                • Prismatic Pearl
                              • Black Trek chainstay exit grommet for Emonda ALR Di2 cable management, component used to protect and route cables smoothly.Black Trek Chainstay Exit Grommet for Emonda ALR Di2 bike cable management, shown installed on the bicycle frame.

                                  Trek Chainstay Exit Grommet Black for Emonda ALR Di2 Cable Management

                                  The Trek Chainstay Exit Grommet in black is designed for seamless cable management on your Emonda ALR frame. It ensures clean routing of Di2 cables, protecting them and enhancing your bike’s sleek look. Crafted for durability and precision fit, this component helps maintain optimal...
                                  £3.99
                                  £3.99
                                • Trek Domane+ HP solid charcoal silver battery cover, protective bike component for e-bike, showing close-up of the durable accessory.Trek Domane+ HP battery cover in solid charcoal silver, a protective bike component designed for Trek electric bikes.

                                    Trek Domane+ HP Battery Cover Solid Charcoal Silver – Protective Bike Accessory

                                    Protect your Trek Domane+ HP battery with this durable cover in solid charcoal and silver. Designed to fit perfectly, it shields your battery from dust and damage while maintaining sleek aesthetics. Crafted with quality materials, this battery cover ensures long-lasting protection and a seamless...
                                    £139.99
                                    £139.99
                                  • Trek Powerfly non-drive side motor cover replacement part for e-bike, showing the black protective component with mounting details.Trek Powerfly non-drive side motor cover replacement part, showing a close-up of the black component accessory.

                                      Trek Powerfly Non-Drive Side Motor Cover Replacement Part & Accessory

                                      Protect your Trek Powerfly with this durable non-drive side motor cover. Designed for a perfect fit, it shields vital components from dirt and damage during rides. What It’s Good For Enhances motor protection from debris and impacts Maintains the integrity of your bike’s frame...
                                      £13.00
                                      £13.00
                                    • Trek Domane downtube storage door cover with locking wings, bike frame component for secure storage access.Trek Domane downtube storage door cover with locking wings, frame component for bike frame access and security.

                                        Trek Domane Downtube Storage Door Cover with Locking Wings Frame Part - Black

                                        Protect your Trek Domane frame with this durable downtube storage door cover. It securely locks the storage wings, keeping your essentials safe on every ride. What It’s Good For Protects downtube storage from dirt and damage Secure locking mechanism for peace of mind Easy...
                                        from £6.99
                                        from £6.99
                                        • Carbon
                                        • Black
                                      • Trek Verve 3 Rib battery cover, genuine e-bike frame component, protective black plastic part for Trek Verve 3 e-bike.Trek Verve 3 Rib battery cover for e-bike, genuine frame part, providing protection for Trek electric bike batteries.

                                        Trek Verve 3 Rib Battery Cover – Genuine Frame Part for E-Bike Protection - Trek Black, Black Chrome

                                        The Trek Frame Parts Verve 3 Rib Battery Cover is designed to offer superior protection and seamless integration for your Verve 3 electric bike. Manufactured by Trek, a renowned leader in cycling innovation, this battery cover ensures a precise fit that preserves both the...
                                        £139.99
                                        £139.99
                                        • Trek Black, Black Chrome
                                        • Rage Red, Chrome
                                      • Trek District Rib 500Wh Gloss Purple battery cover for e-bike frame protection, showcasing the vibrant purple finish and design details.Trek District Rib 500Wh Gloss Purple Battery Cover for e-bike frame protection, showing the spare component on a purple Trek bike frame.

                                          Trek District Rib Battery Cover 500Wh Gloss Purple Frame Spare Protection - Alpine Blue

                                          Protect your Trek District Rib battery with this durable 500Wh gloss purple cover. Designed for a perfect fit, it keeps your battery safe from dust and damage while adding a stylish touch to your bike. Easy to install and remove, this battery cover maintains...
                                          from £108.00
                                          from £108.00
                                          • Anthracite
                                          • Alpine Blue
                                          • Metallic Gunmetal-Dark Grey
                                          • Pacific
                                        • Trek Powerfly HT motor armor black protective cover shielding the bike's motor for durability and protection.Trek Powerfly HT motor armor in black, protective cover for shielding the e-bike motor, one size fits most.

                                            Trek Powerfly HT Motor Armor Black Protective Cover for Motor Shielding One Size

                                            Protect your Trek Powerfly HT motor with this durable black armor. Designed for a perfect fit, it shields your motor from impacts and debris, ensuring longevity and optimal performance. What It’s Good For Protecting the motor from damage Enhancing the durability of your bike...
                                            £8.99
                                            £8.99
                                          • Trek Powerfly HT chainstay armor protection in black, designed to shield bike frame components from damage.Trek Powerfly HT chainstay armor in black, mounted on a mountain bike to protect the chainstay from impacts and scratches.

                                              Trek 2020 Powerfly HT Chainstay Armor Protection Black One Size Bike Accessory

                                              Protect your Trek Powerfly HT frame with this custom-fit chainstay armor. Designed specifically for the 2020 model, it shields against rocks and debris, extending the life of your bike. Made from durable materials, this armor ensures reliable protection without adding unnecessary weight, keeping your...
                                              £9.99
                                              £9.99
                                            • Trek 2020 Fuel EX Carbon seatstay armor in black, protective bike frame guard on mountain bike componentTrek Fuel EX 2020 carbon seatstay armor in black, protective bike frame guard on mountain bike component.

                                                Trek 2020 Fuel EX Carbon Seatstay Armor Black One Size Protective Bike Frame Guard

                                                Protect your bike with the Trek 2020 Fuel EX Carbon Seatstay Armor. Designed for a precise, model-specific fit, this durable armor guards your frame against impacts and scratches. Crafted from high-quality materials, it seamlessly integrates with your bike’s design while enhancing its longevity and...
                                                £10.99
                                                £10.99
                                              • Trek Fuel EX Carbon downtube armor in black, custom fit protective component for mountain bike frame.Trek Fuel EX 2020 carbon downtube armor in black, custom fit protective component for mountain bike frame.

                                                  Trek 2020 Fuel EX Carbon Downtube Armor Black Custom Fit Protection

                                                  Protect your bike's downtube with the Trek 2020 Fuel EX Carbon Armor. This sleek black armor offers a custom fit designed specifically for your frame, ensuring reliable protection without adding bulk. Crafted for durability, it guards against scratches, dings, and debris, keeping your bike...
                                                  £12.99
                                                  £12.99
                                                • Trek Fuel EX black downtube storage door assembly for carbon frame protection, component for bike frame durability.Trek Fuel EX black downtube storage door assembly attached to a carbon frame, designed for bike component protection.

                                                    Trek Fuel EX Black Downtube Storage Door Assembly for Carbon Frame Protection

                                                    Protect your Trek Fuel EX downtube with this sleek black carbon storage door. Designed for durability and a perfect fit, it enhances both function and style. What It’s Good For Securing internal storage compartments Protecting downtube components from debris Maintaining the bike’s aerodynamic profile...
                                                    £59.99
                                                    £59.99
                                                  • Trek 2020 Rail Carbon downtube armor, black protective bike frame guard for bike components, one size.Trek Rail Carbon downtube armor in black, protective bike frame guard for Trek 2020 Rail model, durable bike component.

                                                      Trek 2020 Rail Carbon Downtube Armor Black Protective Bike Frame Guard One Size

                                                      Protect your bike with the Trek 2020 Rail Carbon Downtube Armor. Designed for a custom fit, this durable armor shields the downtube from impacts and scratches, ensuring lasting frame protection. Its sleek black finish complements your bike's aesthetics while providing reliable defense. What It’s...
                                                      £10.99
                                                      £10.99
                                                    • Trek 2020 Rail Chainstay Armor in black, durable bike frame protection component for bike components, one size.Black Trek Rail Chainstay Armor for 2020 bike frames, offers durable protection for bike chainstays, one size fits most Trek models.

                                                        Trek 2020 Rail Chainstay Armor Black – Durable Bike Frame Protection, One Size

                                                        Protect your bike with the Trek 2020 Rail Chainstay Armor, designed for a precise, model-specific fit. This durable armor shields your chainstay from damage and wear, keeping your frame in top condition. Made by Trek, it offers reliable protection without adding bulk, ensuring your...
                                                        £13.99
                                                        £13.99
                                                      • Trek Madone 9 Series Control Center mounting bolts, M4 black replacement components for bike maintenance.Trek Madone 9 Series control center mounting bolts, black M4 replacement components for bike maintenance.

                                                          Trek Madone 9 Series Control Center Mounting Bolts M4 Black Replacement Parts

                                                          Upgrade your Trek Madone 9 Series with these control center mounting bolts. Designed for a secure fit, they ensure stability and durability during every ride. Crafted specifically for Trek frames, these M4 bolts offer reliable performance and easy installation. Perfect as spares or replacements...
                                                          £6.99
                                                          £6.99
                                                        • Trek Diamant Powertube battery lock and cover hardware kit in black with 8mm secure components for e-bike protection.Trek Diamant Powertube battery lock and cover hardware kit in black with 8mm secure fittings, for e-bike battery protection and security.

                                                            Trek-Diamant Powertube Battery Lock & Cover Hardware Kit Black 8mm Secure

                                                            Enhance your Trek-Diamant Powertube battery security with this sleek black lock and cover kit. Designed for durability and seamless integration, it ensures your battery stays firmly in place during every ride. Crafted from high-quality materials, this hardware kit offers reliable protection and easy installation,...
                                                            £8.99
                                                            £8.99
                                                          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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