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 head tube square plug kit with four black frame protection plugs for bicycle component maintenance.Trek Head Tube Square Plug Kit with four black frame protection plugs for bike head tubes and components.

      Trek Head Tube Square Plug Kit – Pack of 4 Black Frame Protection Plugs

      Enhance your bike's durability with the Trek Head Tube Square Plug 4-Pack. These black plugs provide a secure fit, protecting your frame's head tube from dirt and damage. Designed for seamless installation, they maintain your bike's sleek appearance while offering reliable protection during rides....
      £5.63
      £6.99
      £5.63
      Save £1.36
    • Trek Rocker Link Pivot Spacer for full-suspension mountain bike frame upgrade and maintenance components.Trek Rocker Link Pivot Spacer for full-suspension bike frame upgrade and maintenance, showing the small black component.

        Trek Rocker Link Pivot Spacer for Full-Suspension Frame Upgrade and Maintenance - Solid Charcoal

        Upgrade your Trek full-suspension frame with this Rocker Link Pivot Spacer. Designed for precise fit and durability, it ensures smooth suspension performance and long-lasting reliability. What It’s Good For Enhances full-suspension frame efficiency Durable construction for extended use Easy installation for quick maintenance Compatible...
        from £5.63
        £6.99
        from £5.63
        Save £1.36
        • Solid Charcoal
        • Black
      • Trek Fastener Fuel Exe 29 2023 upper shock trunnion component for mountain bike suspension system.Trek Fastener Fuel Exe 29 2023 upper shock trunnion component for mountain bike suspension system.

          Trek Fastener Fuel Exe 29 2023 Upper Shock Trunnion Spares & Accessories

          Enhance your Trek Fastener Fuel Exe 29 2023 with genuine upper shock trunnion spares. Designed for perfect fit and durability, these components ensure seamless performance and longevity. What It’s Good For Maintaining optimal suspension function Extending the lifespan of your bike frame Easy replacement...
          £10.46
          £12.99
          £10.46
          Save £2.53
        • Trek rear derailleur hanger spare part for bike gear alignment and protection, showcasing the component's design and mounting features.Trek rear derailleur hanger spare part for bike gear alignment and protection, shown on a white background.

            Trek Rear Mech Hanger Spares & Accessories for Bike Gear Alignment and Protection

            Upgrade your Trek bike with the Rear Mech Hanger Spares & Accessories. Designed for durability, it ensures smooth gear shifts and protects your frame. Compatible with various Trek models, this component is essential for maintaining optimal performance and extending your bike's lifespan. What It’s...
            £5.80
            £7.00
            £5.80
            Save £1.20
          • Trek Powerfly 2019 black internal cable guide for bike cable management, component accessory for optimal routing and organization.Black Trek Powerfly 2019 internal cable guide for cable management, designed for seamless component organization.

              Trek Powerfly 2019 Internal Cable Guide Black – Cable Management Accessory

              Enhance your Trek Powerfly 2019 with the Internal Cable Guide in sleek black. Designed for seamless cable routing, it keeps your bike’s cables protected and organized. This durable component ensures smooth shifting and braking performance, while maintaining a clean, professional look for your frame....
              £12.06
              £14.99
              £12.06
              Save £2.93
            • Trek Vigorelli Alloy Blue Track Frame Spares & Accessories

                Trek Vigorelli Alloy Blue Track Frame for Cycling Spares & Accessories

                The Trek Vigorelli Alloy Blue Track Frame offers a lightweight and durable design ideal for competitive track cycling. Crafted with precision, it ensures optimal stiffness and responsive handling for a smooth ride. Its vibrant blue finish not only looks striking but also resists wear...
                £20.70
                £25.00
                £20.70
                Save £4.30
              • Trek Powerfly 27.5+ top motor cover replacement component for e-bike, showing a black protective cover on the motor.Trek Powerfly 27.5+ top motor cover replacement spare component for e-bike motor protection.

                  Trek Powerfly 27.5+ Top Motor Covers Replacement Spares & Accessories

                  Protect your Trek Powerfly 27.5+ motor with these durable top motor covers. Designed to fit perfectly, they safeguard vital components from dirt and damage. Made from high-quality materials, these spares ensure long-lasting performance and easy installation, keeping your e-bike running smoothly. What It’s Good...
                  £24.14
                  £29.99
                  £24.14
                  Save £5.85
                • Trek 2023 Farley alloy rigid fork bumpers and accessories, bike components for mountain bike suspension protection.Trek 2023 Farley alloy rigid fork bumpers and accessories for bicycle components, shown in a close-up image.

                    Trek 2023 Farley Alloy Rigid Fork Bumpers & Accessories Spares

                    Upgrade your Trek Speed Concept with the Top Tilt Adjust Plate in sleek black. This precision component enhances your bike's handling and fit. What It’s Good For Improving frame adjustment for a customized ride Durable construction for long-lasting performance Seamless integration with Trek Speed...
                    £8.85
                    £10.99
                    £8.85
                    Save £2.14
                  • Black Trek Speed Concept aerobar bullhorn grips with grip stop, designed for cycling components and aerodynamic performance.Black Trek Speed Concept aerobar bullhorn grips with grip stop, designed for road bike handlebar components.

                      Trek Speed Concept Aerobar Bullhorn Grips Black - SC Bullhorn Grip Stop

                      Enhance your ride with the Trek Speed Concept Aerobar Bullhorn Grips. Designed for comfort and control, these grips provide a secure hold during intense cycling sessions. What It’s Good For Improves grip and handling on bullhorn aerobars Durable material ensures long-lasting performance Fits seamlessly...
                      £8.05
                      £9.99
                      £8.05
                      Save £1.94
                    • Trek Diamant RIB Bosch Battery Ejector Frame Assembly in black for e-bike components, part v2, with detailed frame and ejector mechanism.Trek Diamant RIB Bosch Battery Ejector Frame Assembly Black v2 for e-bikes, showing the black component with mounting details

                        Trek-Diamant RIB Bosch Battery Ejector Frame Assembly Black v2 for E-Bikes

                        The Trek-Diamant RIB Ejector Frame Assembly Black offers a robust solution for integrating your Bosch battery seamlessly. Designed for durability and precision, this frame assembly enhances the structural integrity of your e-bike. Its streamlined design ensures easy installation and reliable battery ejection, making maintenance...
                        £9.65
                        £11.99
                        £9.65
                        Save £2.34
                      • 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...
                          £257.59
                          £319.99
                          £257.59
                          Save £62.40
                        • Trek Superfly SL 29 chainstay guard, durable bike protection component, mounted on a mountain bike frame.Trek Superfly SL 29 chainstay guard, durable bike protection component for Trek mountain bikes, shown on a bike frame.

                            Trek Superfly SL 29 Chainstay Guard – Durable Bike Protection & Accessories Spares

                            Protect your Trek Superfly SL 29 chainstay with this durable guard. Designed to prevent scratches and damage during rides, it ensures your frame stays in top condition. Easy to install, this chainstay guard fits perfectly and offers long-lasting protection. An essential accessory to maintain...
                            £7.45
                            £9.00
                            £7.45
                            Save £1.55
                          • Trek Trinity 531 Le Track Spares & AccessoriesTrek Trinity 531 Le Track Spares & Accessories | Swinnerton Cycles

                            Trek Trinity 531 Le Track Spares & Accessories for Emonda SL/SLR Di2 Maintenance

                            Discover the Trek Trinity 531 Le Track Spares & Accessories, designed for seamless bike maintenance and upgrades. Crafted by Trek, it ensures durability and perfect fit for your frame. This component kit offers essential parts to keep your Emonda SL/SLR Di2 running smoothly, enhancing...
                            £68.72
                            £83.00
                            £68.72
                            Save £14.28
                          • Trek black MTB/hybrid rear derailleur hanger with 135mm quick release side for bike components.Trek MTB hybrid rear derailleur hanger in black with 135mm quick release side for bike components.

                              Trek MTB/Hybrid Rear Derailleur Hanger Black 135mm Quick Release Side

                              Designed specifically for Trek MTB and Hybrid bikes, this black rear drive side derailleur hanger ensures precise gear alignment and durability. Its 135mm Q/R fit guarantees seamless integration with your bike frame for optimal performance. Crafted from high-quality materials, this component enhances drivetrain reliability...
                              £16.09
                              £19.99
                              £16.09
                              Save £3.90
                            • Trek Madone Gen2 rear derailleur hanger in black, 135mm quick-release, drive side bicycle component for road bike.Trek Madone Gen2 black rear derailleur hanger with 135mm quick-release, rear drive side bicycle component.

                                Trek Madone Gen2 Rear Derailleur Hanger Black 135mm Q/R Rear Drive Side

                                The Trek Madone Gen2 Rear Derailleur Hanger in black is designed for precise rear drive side alignment with a 135mm Q/R. It ensures smooth gear shifts and reliable performance for your bike frame. Crafted to fit perfectly with Trek frames, this hanger enhances drivetrain...
                                £16.09
                                £19.99
                                £16.09
                                Save £3.90
                              • Trek Madone SLR painted seatpost in Viper Red and Navy Smoke, aerodynamic fit, lightweight cycling component.Trek Madone SLR painted seatmast seatpost in Viper Red and Navy Smoke with aerodynamic design for road bikes.

                                Trek Madone SLR Painted Seatmasts Seatpost Viper Red/Navy Smoke Aerodynamic Fit - Crimson-Carbon Smoke

                                Upgrade your bike with the Trek Madone SLR Painted Seatmasts Seatpost, designed for a sleek, aerodynamic finish. Its vibrant Viper Red/Navy Smoke color adds a stylish touch while maintaining durability. This seatpost fits perfectly with the Madone SLR frame, ensuring optimal performance and comfort...
                                £386.39
                                £479.99
                                £386.39
                                Save £93.60
                                • Navy Smoke-Trek White
                                • Viper Red-Carbon Blue Smoke
                                • Amethyst
                                • Dnister Black-Trek Black
                              • Trek black barrel adjusters for downtube brake cables, used for fine-tuning bike brake tension, component for bicycle maintenance.Trek black barrel adjusters for downtube brake cables, fine-tuning bicycle brake tension, shown on bike component.

                                  Trek Black Barrel Adjusters for Downtube Brake Cable Fine-Tuning One Size

                                  Enhance your bike’s braking precision with the Trek Barrel Adjusters in black. Designed for easy cable tension fine-tuning, these adjusters ensure smooth and responsive brake performance. Crafted to fit most downtube setups, they provide reliable durability and a sleek, minimalistic look that complements any...
                                  £5.63
                                  £6.99
                                  £5.63
                                  Save £1.36
                                • Trek 2-part 50 ml adhesive dispenser with grey and black workshop plunger, featuring 1:1 and 2:1 ratio for precise applicationTrek 2-Part 50 ml adhesive dispenser with grey and black workshop plunger, designed for precise 1:1 and 2:1 ratio glue application

                                    Trek 2-Part 50 ml Adhesive Dispenser with 1:1/2:1 Ratio Plunger Grey/Black

                                    Designed for precise adhesive application, the Trek 2-Part 50 ml Dispenser ensures consistent mixing with its 1:1/2:1 ratio plunger. Crafted from lightweight yet durable plastic, it offers reliable performance in any workshop setting. What It’s Good For Accurate dispensing of adhesives with dual ratio...
                                    £52.32
                                    £64.99
                                    £52.32
                                    Save £12.67
                                  • Trek waterproof black bike rack pannier bag with buckle closure, compact 0.8L accessory for cycling gear storage.Trek waterproof buckled NIP bike rack pannier bag in black, compact 0.8L accessory for cycling and bike storage.

                                      Trek Waterproof Buckled NIP Bag 0.8L – Compact Bike Rack Pannier Bag Black

                                      The Trek Waterproof Buckled NIP Bag Black 0.8L is the perfect companion for cyclists and outdoor enthusiasts who demand reliability and protection. Made from durable, waterproof materials, this bag safeguards your essentials against rain and moisture, ensuring your items stay dry no matter the...
                                      £11.26
                                      £13.99
                                      £11.26
                                      Save £2.73
                                    • Trek Solstice women's cycling jersey featuring breathable fabric and eco-friendly performance fit, designed for comfortable riding.Trek Solstice women's cycling jersey, breathable eco-friendly performance fit, lightweight clothing designed for comfort and cycling.

                                      Trek Solstice Women's Cycling Jersey Breathable Performance Fit Eco-Friendly - Blush

                                      The Trek Solstice Women's Cycling Jersey combines comfort and performance with eco-conscious materials. Designed specifically for women, it offers a breathable fit that keeps you cool on every ride. Durable and lightweight, this jersey supports your cycling goals, whether you're a beginner or a...
                                      from £25.86
                                      £29.99
                                      from £25.86
                                      Save £4.13
                                      • Blush
                                      • Black
                                      • Dusty Blue
                                    • 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...
                                      £7.23
                                      £8.99
                                      £7.23
                                      Save £1.76
                                    • 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 £3.22
                                      £3.99
                                      from £3.22
                                      Save £0.77
                                      • Trek Black
                                    • Trek Electra rear disc derailleur hanger in black with 142x12mm thru axle compatibility, bike component for rear derailleur mounting.Black Trek Electra rear disc derailleur hanger with 142x12mm thru axle for bike components, compatible with Trek bikes.

                                      Trek Electra Rear Disc Derailleur Hanger Black 142x12mm Thru Axle Compatible

                                      The Trek-Electra Disc Derailleur Hanger ensures precise rear derailleur alignment for smooth shifting. Designed for 142x12mm thru axle frames, it offers reliable compatibility with Trek Electra models. Crafted for durability and easy installation, this black hanger maintains your bike’s performance and protects your frame...
                                      £16.09
                                      £19.99
                                      £16.09
                                      Save £3.90
                                    • Trek Domane MKIV black headset top cap and stem component for headtube, bicycle bike parts, Trek cycling accessoriesTrek Domane MKIV standard stem and headset top cap for headtube, black bicycle components for road bike setup

                                      Trek Domane MKIV Standard Stem Black Headset Top Cap for Headtube

                                      Upgrade your Trek bike with the Domane MKIV Standard Stem Headset Top Cap in sleek black. This component ensures a secure fit and enhances your bike’s overall performance and aesthetics. Crafted for durability, it perfectly complements your headtube for a streamlined look. What It’s...
                                      £10.46
                                      £12.99
                                      £10.46
                                      Save £2.53
                                    • Grey Trek E2 FSA 36-degree lower headset bearing for Trek bike frames, showing the bearing and component details.Grey Trek E2 FSA 36-Degree Lower Headset Bearing for Trek bike frames, showcasing a high-quality bicycle component.

                                      Trek E2 FSA 36-Degree Lower Headset Bearing Grey for Trek Frames

                                      The Trek E2 FSA Headset Lower Bearing 36-Degree Grey is designed to deliver precise and dependable steering for your bike. Crafted by Trek, this component fits perfectly with specific Trek frames thanks to its 36-degree angle, ensuring stability and optimal control. Its grey finish...
                                      £28.17
                                      £34.99
                                      £28.17
                                      Save £6.82
                                    • Silver Trek E2 FSA headset lower bearing with 36-degree angle for Trek bikes, showcasing the component's detailed design.Silver Trek E2 FSA headset lower bearing with 36-degree angle, compatible with Trek bikes, showcasing the bearing and component details.

                                      Trek E2 FSA Headset Lower Bearing 36-Degree Silver for Compatible Trek Bikes

                                      Upgrade your bike's performance with the Trek E2 FSA Headset Lower Bearing. Designed for smooth steering and durability, it ensures a precise fit for select Trek frames. Crafted in silver, this high-quality component supports reliable handling and long-lasting use on various Trek models from...
                                      £11.26
                                      £13.99
                                      £11.26
                                      Save £2.73
                                    • Grey Trek Road M3 x 0.5 x 12mm countersunk head bolt for bike components, shown with threaded shaft and smooth head.Trek Road M3 x 0.5 x 12mm grey countersunk head bolt for bike components, showing the metal bolt with threaded shaft.

                                      Trek Road M3 x 0.5 x 12mm Grey Countersunk Head Bolt for Bike Components

                                      The Trek Road M3 x 0.5 x 12 mm Countersunk Head Bolt offers reliable fastening for your bike components. Its precise dimensions ensure a secure fit on compatible frames and accessories. Crafted in durable grey finish, this bolt is built to withstand regular use...
                                      £2.99
                                      £2.99
                                    • Trek Rally WaveCel mountain bike helmet with impact protection and ventilation, shown on a rider's head.Trek Rally WaveCel mountain bike helmet with advanced impact protection and ventilation, shown from the side.

                                      Trek Rally WaveCel Mountain Bike Helmet with Advanced Impact Protection and Ventilation - Black

                                      The Trek Rally WaveCel Mountain Bike Helmet is expertly designed to deliver exceptional protection and comfort on every ride. Featuring advanced WaveCel technology, this helmet effectively absorbs impacts, significantly lowering the risk of head injuries during intense mountain biking sessions. Its unisex design ensures...
                                      from £124.19
                                      £149.99
                                      from £124.19
                                      Save £25.80
                                      • Black
                                      • Chinchilla & Black
                                      • Keswick & 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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