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 Fuel EX main pivot D-nut in black, M16 x 6mm fastener, close-up view of mountain bike component part.Black Trek Fuel EX main pivot D-nut fastener, M16 x 6mm, for bike component replacement with threaded metal nut.

      Trek 2020 Fuel EX Main Pivot D-Nut Black M16 x 6mm Fastener Replacement

      Upgrade your Trek Fuel EX with the 2020 Main Pivot D-Nut. Designed for a secure fit, this black M16 x 6mm fastener ensures durability and reliable performance. Perfect for maintaining frame integrity, it offers an easy replacement to keep your bike in top condition....
      £9.44
      £9.99
      £9.44
      Save £0.55
    • Trek 2021 ProCaliber IsoSpeed hardware kit with replacement components for ProCaliber bike frame repair and maintenance.Trek 2021 ProCaliber IsoSpeed hardware kit with replacement components for ProCaliber bike frame.

        Trek 2021 ProCaliber IsoSpeed Hardware Kit – Replacement Parts for ProCaliber Frame

        Upgrade your Trek ProCaliber with this hardware kit. Designed for a perfect fit, it ensures optimal frame performance and durability. What It’s Good For Maintaining the integrity of your ProCaliber frame Easy replacement of worn or damaged parts Enhancing overall bike reliability and ride...
        £37.79
        £39.99
        £37.79
        Save £2.20
      • Trek Madone Slr Blendr Mono Base Spares & AccessoriesTrek 2024 Slash Idler Pulley Cog Assembly V2 Black Idler Pulley Cog Assembly V2 | Swinnerton Cycles

          Trek 2024 Slash Idler Pulley Cog Assembly V2 Black Mountain Bike Part

          The Trek 2024 Slash Idler Pulley Cog Assembly V2 in Black is a vital upgrade for maintaining the efficiency and reliability of your mountain bike’s drivetrain. Designed specifically for the Trek Slash 2024 model, this component ensures smooth chain movement and reduces friction, enhancing...
          £28.33
          £29.99
          £28.33
          Save £1.66
        • Trek Madone SLR internal Di2 battery holder in black, designed for bike components, with a sleek, compact look.Black Trek Madone SLR internal Di2 battery holder for bikes, designed for secure component placement and optimal weight distribution.

            Trek Madone SLR Internal Di2 Battery Holder Black One Size – Bike Accessory

            The Trek Madone SLR Internal Di2 Battery Holder offers a sleek, integrated solution for your bike’s power needs. Designed for seamless compatibility, it ensures reliable performance without compromising frame aesthetics. Crafted to fit perfectly within the Madone SLR frame, this battery holder maintains a...
            £9.44
            £9.99
            £9.44
            Save £0.55
          • Trek road bike integrated stem spacers, 5mm height, for RCS headset adjustment, cycling components, black aluminum.Trek road bike integrated stem spacers, 5mm, for RCS headset adjustment, component for bike handling and fit.

            Trek Road Bike Integrated Stem Spacers 5mm for RCS Headset Adjustment - Trek Black

            Optimize your bike fit with Trek’s 5mm integrated stem spacers. Designed for a sleek, secure headset setup, these spacers enhance comfort and control on every ride. What It’s Good For Adjusting handlebar height with precision Ensuring a secure and stable headset assembly Maintaining the...
            from £3.77
            £3.99
            from £3.77
            Save £0.22
            • Trek Black
          • Trek Rail Carbon 2022 RIB Smart System battery end cap in black, designed for bicycle components, one sizeTrek Rail Carbon 2022 RIB Smart System Battery End Cap in black, for bike component, with sleek design and precise fitting.

              Trek Rail Carbon 2022 RIB Smart System Battery End Cap Black One Size

              Enhance your Trek Rail Carbon 2022 with this sleek RIB Smart System Battery End Cap. Designed for a perfect fit, it ensures secure battery placement and optimal performance. What It’s Good For Securing the battery firmly within the frame Protecting battery connections from dirt...
              £12.28
              £12.99
              £12.28
              Save £0.71
            • Trek Rail Carbon 29 RIB Smart System Battery Handle in black, a secure mounting accessory for e-bike components.Trek Rail Carbon 29 RIB Smart System Battery Handle in black, a secure mounting accessory for e-bike components.

                Trek 2022 Rail Carbon 29 RIB Smart System Battery Handle Black – Secure Mounting Accessory

                The Trek 2022 Rail Carbon 29 RIB Smart System Battery Handle in black offers a durable and ergonomic design. It ensures secure battery attachment and easy handling for your bike. Crafted to fit perfectly with Trek Rail Carbon frames, this handle assembly enhances battery...
                £18.89
                £19.99
                £18.89
                Save £1.10
              • Trek Suspension Part Abp Udh Non-Drive Side Dropout 2022 Spares & AccessoriesTrek Suspension Part Abp Udh Non-Drive Side Dropout 2022 Spares & Accessories

                Trek Rear Shock Pin to Trunnion Hardware 18.5mm Head for Frame Upgrade - Black

                Upgrade your Trek frame with the Rear Shock Pin to Trunnion 18.5mm Head Hardware. Designed for durability and precise fit, it ensures smooth suspension performance. Crafted from high-quality materials, this component enhances your bike's reliability and ride comfort. What It’s Good For Ensuring secure...
                £33.06
                £34.99
                £33.06
                Save £1.93
                • Black
              • Trek bike component: Bosch 625W & 500W battery cover rail spare part for Trek e-bike frames.Trek bike components: Bosch 29 battery cover rail spare part for 500W and 625W batteries.

                  Trek Frame Spares Rail 29 Battery Cover for Bosch 625W & 500W Batteries - Olive Grey-Trek Black

                  The Trek Frame Spares Rail 29 Battery Cover ensures secure protection for your integrated battery system. Designed for Bosch 625 W RIB or 500 W batteries with spacer, it fits perfectly. Durable and reliable, this cover maintains your bike’s sleek look while safeguarding your...
                  from £125.99
                  £139.99
                  from £125.99
                  Save £14.00
                  • Olive Grey-Trek Black
                  • Slate-Trek Black
                  • Carbon-Black
                  • Dnister Black-Rage Red
                • Trek Rivnut M5 x 5mm grey components for Alpha SL bike frames, shown in a pack of 10 for secure mounting and frame reinforcement.Trek Rivnut M5 x 5mm grey components pack of 10 for Alpha SL bike frames, showing metal rivnut inserts for secure fastening.

                    Trek Rivnut M5 x 5mm Grey - Pack of 10 for Alpha SL Bike Frames

                    Enhance your bike maintenance with the Trek Rivnut 10-Pack, designed for Alpha SL Frames. These grey M5 x 5mm rivnuts ensure secure, reliable fastening for your frame components. Crafted for durability and easy installation, they help maintain the integrity of your bike’s structure. Perfect...
                    £9.44
                    £9.99
                    £9.44
                    Save £0.55
                  • Trek Boone IsoSpeed internal parts kit in black for 2014-2018 mountain bike models, includes components for bike suspension upgrade.Black Trek Boone IsoSpeed internal parts kit for 2014-2018 Trek bikes, includes components for IsoSpeed suspension upgrade.

                      Trek Boone IsoSpeed Internal Parts Kit Black for 2014-2018 Models

                      Upgrade your Trek Boone with the IsoSpeed Internal Parts Kit in sleek black. Designed for 2014-2018 models, it ensures smooth performance and reliable durability. Precision-engineered for easy installation, these parts maintain your bike’s comfort and responsiveness on every ride. What It’s Good For Enhancing...
                      £37.79
                      £39.99
                      £37.79
                      Save £2.20
                    • Trek Diamant bottom bracket cable stop in black and dark grey, bike cable routing component for smooth gear cable management.Trek Diamant Bottom Bracket Cable Stop in black and dark grey, bike cable routing component for smooth gear and brake cable management.

                        Diamant Bottom Bracket Cable Stop Black/Dark Grey – Bike Cable Routing Component

                        The Diamant Bottom Bracket Cable Stop in Black/Dark Grey by Trek is meticulously designed to optimize cable routing for your bike’s braking and shifting systems. This component ensures cables are securely held around the bottom bracket area, preventing unnecessary movement and enhancing overall bike...
                        £4.71
                        £4.99
                        £4.71
                        Save £0.28
                      • Trek Farley rear cargo rack mounted on bike, durable accessories for extra storage on mountain or fat bikes.Trek Farley rear cargo rack mounted on mountain bike for extra storage, durable metal bike accessory.

                          Trek Farley Rear Cargo Rack – Durable Rear Bike Rack for Extra Storage - Black

                          The Trek Racks - Farley Rear Cargo Rack is a robust and reliable accessory designed to expand your bicycle’s carrying capacity with ease. Crafted by Trek, a leader in cycling innovation, this rear cargo rack combines strength and practicality, making it an indispensable addition...
                          from £85.03
                          £89.99
                          from £85.03
                          Save £4.96
                          • Black
                          • Lava
                        • Trek Precaliber 16 kids mountain bike with parent handle, featuring a sturdy frame and colorful design for young learnersTrek Precaliber 16 kids' mountain bike with parent handle, featuring a sturdy frame and training wheels for young riders.

                          Trek Precaliber 16 Kids Mountain Bike with Parent Handle for Learning Riders - Volt

                          The Trek Precaliber 16 Kids Mountain Bike is expertly engineered to support young riders in developing their cycling skills with confidence and safety. Featuring a robust mountain bike frame, it delivers reliable performance and stability across diverse terrains, making it an excellent choice for...
                          £273.52
                          £275.00
                          £273.52
                          Save £1.48
                          • Mulsanne Blue
                          • Pink Frosting
                          • Volt
                        • Trek FX Sport AL 3 hybrid bike with Shimano 105 gears, aluminum frame, flat bar, designed for fitness riding.Trek FX Sport AL 3 hybrid bike with Shimano 105 components, flat bar, aluminum frame, suited for fitness riding.

                          Trek FX Sport AL 3 – Shimano 105, Alpha Aluminium, Flat Bar Fitness Hybrid Bike - Buff Beige

                          The Trek FX Sport AL 3 is Trek's top-specification aluminium flat bar fitness bike — a fast, efficient hybrid designed for riders who want road bike performance in a more upright, accessible package. The frame is Alpha Aluminium with Trek's Active geometry, which positions...
                          £939.05
                          £1,000.00
                          £939.05
                          Save £60.95
                          • Buff Beige
                          • Cobra Blood
                          • Keswick
                        • Trek Fuel EX 8 Gen 7 all-mountain trail mountain bike with full suspension, black frame, and knobby tires for versatile riding.Trek Fuel EX 8 Gen 7 mountain bike with full suspension and rugged tires for all-mountain trail riding.

                          Trek Fuel EX 8 Gen 7 All-Mountain Trail Mountain Bike – Versatile Performance - Gloss Fury Red/Matte Dark Carmine

                          The Trek Fuel EX 8 Gen 7 represents a pinnacle of all-mountain trail biking, designed to meet the demands of riders seeking both versatility and high performance. Its robust frame and advanced suspension system provide exceptional control and responsiveness, enabling confident navigation through diverse...
                          £3,115.81
                          £3,200.00
                          £3,115.81
                          Save £84.19
                          • Gloss Fury Red/Matte Dark Carmine
                          • Lithium Grey/Trek Black Splatter
                        • Black Trek Kids' mountain bike crankset with 127mm arm and 28-tooth chainring, designed for durable cycling components.

                            Trek Kids' Mountain Bike Crankset 127mm with 28T Chainring Black

                            The Trek Kids' Crankset Black 127mm, 28t is expertly crafted to meet the unique needs of young mountain bike riders. Its 127mm crank length is perfectly sized to fit smaller legs, allowing kids to pedal comfortably and efficiently. This thoughtful design helps build confidence...
                            £18.89
                            £19.99
                            £18.89
                            Save £1.10
                          • Black Bontrager Boost 141 rear skewer for Trek Boost 141 hubs, 158mm length, bike component for secure wheel attachment.Black Bontrager Boost 141 rear skewer for Trek Boost 141 hubs, 158mm length, bicycle component part.

                              Bontrager Boost 141 Rear Skewer 158mm Black for Boost 141 Hubs

                              Enhance your bike's rear wheel stability with the Bontrager Boost 141 Skewer. Featuring a sleek black lever and durable steel axle, it ensures a secure fit for 158mm Boost rear wheels. What It’s Good For Provides strong, reliable wheel attachment for Boost 141 rear...
                              £6.61
                              £6.99
                              £6.61
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                            • Trek Shimano BB90/BB95 steel bottom bracket kit in grey, compatible with bike components, one size, shown in the image.Trek Shimano BB90/BB95 steel bottom bracket kit in grey, showing the round metal components for bike installation.

                                Trek Integrated Shimano BB90/BB95 Steel Bottom Bracket Kit Grey One size

                                The Trek Integrated Shimano BB90/BB95 Steel Bottom Bracket Kit in Grey is crafted to elevate your bike’s transmission system with unmatched precision and durability. Designed specifically for frames compatible with BB90 and BB95 standards, this bottom bracket kit ensures a flawless fit and consistent...
                                £51.97
                                £54.99
                                £51.97
                                Save £3.02
                              • Trek Integrated Bb90/95 Bearing Spacer Seal Bottom BracketTrek Integrated BB90/95 Bearing Spacer Seal Black 7.5mm x 24mm | Swinnerton Cycles

                                  Trek Integrated BB90/95 Bearing Spacer Seal 7.5mm x 24mm for Bottom Bracket

                                  Enhance your bike’s performance with the Trek Integrated BB90/95 Bearing Spacer Seal. Designed for precision, it ensures smooth rotation and reliable protection for your bottom bracket bearings. Its durable black finish complements your bike’s sleek look while maintaining optimal function. Crafted specifically for Trek’s...
                                  £1.88
                                  £1.99
                                  £1.88
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                                • Trek 2017 Mino Link seatstay nut in black, a bike frame replacement component, shown installed on a Trek bike frame.Trek 2017 Mino Link seatstay nut in black for bike frame replacement, showing close-up of the component on a bicycle frame.

                                    Trek 2017 Mino Link Seatstay Nut Black – Bike Frame Replacement Part

                                    The Trek 2017 Mino Link Seatstay Nut in Black is a crucial component crafted to optimize the performance and longevity of your Trek bicycle frame. Engineered with precision, this seatstay nut is an integral part of the Mino Link system, ensuring a secure connection...
                                    £8.49
                                    £8.99
                                    £8.49
                                    Save £0.50
                                  • Trek Mino Link seatstay nut M10 x 6mm in black for 2014-2017 suspension bikes, component part for bike frame assembly.Trek Mino Link seatstay nut M10 x 6mm black for suspension components, shown on a bike part.

                                      Trek Mino Link Seatstay Nut M10 x 6mm Black 2014-2017 Suspension Part

                                      Upgrade your Trek frame with the Mino Link Seatstay Nut, designed for models 2014-2017. This black M10 x 6mm component ensures a secure and reliable fit for your suspension system. What It’s Good For Maintains the integrity of your Trek suspension frame Easy to...
                                      £4.71
                                      £4.99
                                      £4.71
                                      Save £0.28
                                    • Trek Boone bottom bracket and decoupler seal kit in black for 2014-2018 mountain bike models, components set with seals and hardware.Trek Boone bottom bracket and decoupler seal kit in black for 2014-2018 mountain bike models, shown with components and seals.

                                        Trek Boone Bottom Bracket & Decoupler Seal Kit Black for 2014-2018 Models

                                        Protect your Trek Boone Bottom Bracket and Decoupler with this durable black seal kit. Designed for models 2014-2018, it ensures a tight fit to keep dirt and moisture out, extending the life of your components. Easy to install and made with high-quality materials, this...
                                        £3.77
                                        £3.99
                                        £3.77
                                        Save £0.22
                                      • Trek 2021 Powerfly Fs Lower Linkage Hardware Kit Spares & AccessoriesTrek ABP Universal Derailleur Hardware Kit Black Trek ABP Universal Hardware Kit | Swinnerton Cycles

                                          Trek ABP Universal Derailleur Hardware Kit Black – Compatible Bike Frame Upgrade

                                          Upgrade your bike's performance with the Trek ABP Universal Derailleur Hardware Kit in sleek black. Designed for compatibility with various frames, this kit ensures reliable shifting and durability. Crafted by Trek, it offers precision and strength, making it an essential upgrade for maintaining your...
                                          £47.24
                                          £49.99
                                          £47.24
                                          Save £2.75
                                        • Trek Domane Blendr Cable Wrangler Elite Mono Mount Spares & AccessoriesTrek Road Headset Split Ring Grey SPLIT RING, ROAD COCKPIT SYSTEM | Swinnerton Cycles

                                            Trek Road Bike Headset Split Ring Grey – Road Cockpit System Replacement Part

                                            The Trek Road Headset Split Ring Grey is an essential component crafted for enhancing your road bike's cockpit system. Designed with precision engineering, this split ring guarantees a secure and stable fit within the headset assembly, directly contributing to improved steering control and overall...
                                            £13.22
                                            £13.99
                                            £13.22
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                                          • Trek Powerfly FS and Marlin+ rear bike cargo rack in black, mounted on mountain bike, durable and functional for bike touring.Trek Powerfly FS and Marlin+ black rear cargo rack mounted on a bike, providing additional storage space for cycling adventures.

                                              Trek 2023 Powerfly FS & 2024 Marlin+ Rear Rack Black | Bike Cargo Rack One Size

                                              Enhance your ride with the Trek 2023 Powerfly FS / 2024 Marlin+ Rear Rack in sleek black. Designed for durability and easy installation, this rack offers reliable support for your gear. Its sturdy frame complements your bike's aesthetics while providing practical utility for carrying...
                                              £66.14
                                              £69.99
                                              £66.14
                                              Save £3.85
                                            • Black Trek Fuel EXe 2023-2024 M10 x 19mm upper shock trunnion fastener for mountain bike components.Trek Fuel EXe 2023-2024 upper shock trunnion fastener M10 x 19mm in black, bicycle component for shock mounting.

                                                Trek Fuel EXe 2023-2024 Upper Shock Trunnion Fastener M10 x 19mm Black

                                                Secure your Trek Fuel EXe 29 2023 upper shock with this reliable M10 x 19mm fastener. Designed for durability and precise fit, it ensures peak performance of your suspension system. Crafted specifically for Trek frames, this component provides a seamless replacement to maintain your...
                                                £8.49
                                                £8.99
                                                £8.49
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                                              • Trek Armor Roscoe 29 2022 Chainstay Black Spares & AccessoriesTrek 2022 Top Fuel 29 Trunnion Mount Upper Shock Bolt Black M10 x 16mm | Swinnerton Cycles

                                                  Trek 2022 Top Fuel 29 Trunnion Mount Upper Shock Bolt M10 x 16mm Black

                                                  Upgrade your Trek Top Fuel 29 with this durable Trunnion Mount Upper Shock Bolt. Precision-engineered for a perfect fit, it ensures reliable performance and longevity. What It’s Good For Securely fastening the upper shock on Trek Top Fuel 29 2022 models Providing a strong,...
                                                  £9.44
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                                                  £9.44
                                                  Save £0.55
                                                • Trek 2021 Powerfly FS black rear fender for 29-inch wheels, mudguard accessory for mountain bike.Trek Powerfly FS 2021 black rear mudguard for 29-inch wheels, full rear fender accessory for mountain bikes.

                                                    Trek 2021 Powerfly FS Black Full Rear Fender for 29" Wheels, Mudguard Rear

                                                    Enhance your ride with the Trek 2021 Powerfly FS Full Rear Fender. Designed specifically for 29" wheels, this black rear fender offers superior protection against mud and debris. Its durable construction ensures long-lasting performance on all trails. Easy to install and compatible with Powerfly...
                                                    £23.62
                                                    £24.99
                                                    £23.62
                                                    Save £1.37
                                                  • Trek eco-friendly left side load recycled water bottle cage for bikes, showcasing durable, lightweight bike accessories.Trek eco-friendly left side load recycled water bottle cage mounted on a bike frame, designed for convenient hydration access.

                                                      Trek Left Side Load Recycled Water Bottle Cage – Eco-Friendly Bike Accessory - White

                                                      The Trek Cages - Left Side Load Recycled Water Bottle Cage is designed for cyclists who value both functionality and environmental responsibility. Made from recycled materials, this bottle cage offers a durable and eco-friendly solution that fits perfectly on the left side of your...
                                                      £8.91
                                                      £10.99
                                                      £8.91
                                                      Save £2.08
                                                      • White
                                                      • Crimson
                                                      • Olive Grey
                                                      • Trek Black
                                                    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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