MRP

Shop MRP chain guides and components at Swinnerton Cycles. MRP (Mountain Racing Products) is an American brand producing high-quality chain retention devices, chain guides, and drivetrain accessories for mountain biking. Known for their reliable, well-engineered chain guides that keep your chain on the ring in the roughest conditions, MRP products...

Shop MRP chain guides and components at Swinnerton Cycles. MRP (Mountain Racing Products) is an American brand producing high-quality chain retention devices, chain guides, and drivetrain accessories for mountain biking. Known for their reliable, well-engineered chain guides that keep your chain on the ring in the roughest conditions, MRP products are a popular choice among trail, enduro, and downhill riders who need dependable chain retention.

From their 1x chain guides and e-MTB upper chain devices to hub adaptors and service parts, MRP covers the chain retention and drivetrain needs of modern mountain bikers.

  • 1x chain guides for trail, enduro, and downhill riding
  • E-MTB upper chain devices for 34–38T chainrings
  • Lower guide pulleys and chain device spares
  • Hub adaptors for boost compatibility
  • Compatible with ISCG-05 and direct mount standards
  • American engineering trusted by trail and enduro riders

MRP Best Sellers

Browse our full range of bike components and cycling accessories at Swinnerton Cycles.

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  • MRP upper chain device for E-MTB with 34-38T chainrings, chain retention tool, and components for secure chain management.MRP upper chain device for E-MTB with 34-38T chainrings, a chain retention tool shown in a close-up image.

    MRP Upper Chain Device for E-MTB 34-38T Chainrings – Chain Retention Tool - Black

    Enhance your e-MTB's drivetrain with the MRP Upper Chain Device. Designed for 34-38T chainrings, it ensures smooth chain retention and reduces chain drops. Built with precision, this component offers reliable performance and durability for demanding trails and varied terrain. What It’s Good For Maintaining...
    £89.99
    £89.99
    • Black
  • MRP Minig3/G4 lower skid plate chain device for bike transmission protection, shown in black with mounting hardware.MRP Minig3/G4 lower skid plate chain device for bike transmission protection, showing the durable metal component for off-road cycling.

      MRP Minig3/G4 Lower Skid Plate Chain Device for Bike Transmission Protection

      The MRP Minig3/G4 Lower Skid Plate Chain Device is expertly crafted to boost the reliability and efficiency of your bike's transmission. Built by MRP, a leader in premium bike components, this device ensures smooth chain management and robust protection under challenging riding conditions. Its...
      £49.71
      £49.99
      £49.71
      Save £0.28
    • MRP lower guide pulley chain device for Lopes 2x, G2, G2 SL, G3, and Micro mountain bike models, mounted on bike frame.MRP lower guide pulley chain device for Lopes 2x, G2, G2 SL, G3, and Micro mountain bike models, showcasing the component's design.

        MRP Lower Guide Pulley Chain Device for Lopes 2x, G2, G2 SL, G3 & Micro Models

        The MRP Lower Guide Pulley Chain Device ensures smooth and reliable chain management for your bike. Designed for MRP Lopes 2x, G2, G2 SL, G3, and Micro models, it enhances drivetrain performance and durability. Precision-engineered for seamless transmission, this component maintains chain tension and...
        £17.99
        £17.99
      • MRP Better Boost adaptor kit for Stans Neo OS 15x100mm hub, bike component spare part for wheel compatibility.

          MRP Better Boost Adaptor Kit for Stans Neo OS 15x100mm Hub Spares

          Upgrade your Stans Neo OS 15x100mm front hub effortlessly with the MRP Better Boost Adaptor Kit. Designed to convert your existing hub to fit a 15x110mm Boost fork, this kit lets you keep your current wheel while enjoying the enhanced performance and compatibility of...
          £54.99
          £54.99
        • MRP Better Boost Adapter Kit for DT Swiss 350 Centerlock hubs, converts 15x100mm to 15x110mm boost spacing, bike component spare

            MRP Better Boost Adapter Kit for DT Swiss 350 Centerlock Hub Spares 15x100 to 15x110mm

            Upgrade your front wheel effortlessly with the Mrp Better Boost Adaptor Kit designed specifically for DT Swiss 350 Centerlock 15x100mm hubs. This kit converts your existing hub to the Boost 15x110mm standard, enabling compatibility with modern Boost forks without the need to replace your...
            £54.99
            £54.99
          • MRP rear axle hub spares for thru-axle frames with 6mm hex bolt-on design, bicycle component.MRP rear axle hub spares for thru-axle bikes with 6mm hex bolt-on design, durable bike components for secure wheel attachment.

            MRP Rear Axle Hub Spares for Thru-Axle Frames with 6mm Hex Head Bolt-On Design - Black

            Discover the MRP Rear Axle Hub Spares designed to enhance your bike’s performance with superior rear end clearance. Ideal for riders tackling tight, technical trails, these axles provide up to an inch (~25mm) more space, improving maneuverability and control. Crafted from lightweight alloy, they...
            from £42.99
            from £42.99
            • Black
          • MRP Standard Roller Kit Chain Device with PU rollers and adjustable design for bike components.MRP standard roller kit chain device with PU rollers and adjustable design for bike components, shown with metal frame and rollers.

              MRP Standard Roller Kit Chain Device with PU Rollers & Adjustable Design

              Upgrade your drivetrain with the MRP Standard Roller Kit Chain Device, designed for superior performance and durability. This kit includes replacement PU rollers complete with hardware and bearings, ensuring smooth operation and long-lasting reliability. Its asymmetrical design allows precise adjustment of chain entry and...
              £21.99
              £21.99
            • MRP G3/G4 pulley hardware chain device for smooth bike transmission and chain tension adjustment.MRP G3/G4 pulley hardware chain device for bike transmission and chain tension, showing the metal components and installation parts.

                MRP G3/G4 Pulley Hardware Chain Device for Smooth Bike Transmission & Chain Tension

                The MRP G3/G4 Pulley Hardware Chain Device is expertly crafted to elevate your bike’s transmission system with unmatched precision and durability. Designed by MRP, a leader in high-performance cycling components, this chain device excels in managing chain alignment and tension, ensuring a smooth and...
                £27.82
                £27.99
                £27.82
                Save £0.17
              • MRP TR upper guide chain device for smooth, quiet 1x drivetrain performance, shown in close-up with black and silver components.MRP TR upper guide chain device for smooth, quiet 1x drivetrain performance, shown in close-up with metal components.

                  MRP TR Upper Guide Chain Device for Smooth, Quiet 1x Drivetrain Performance

                  The MRP TR Upper Guide Chain Device offers quiet, smooth chain guidance thanks to its innovative co-molded design with a softer durometer interior. Engineered for reliable performance. Compatible with G3, AMg V1, AMg V2, and all 1x guides featuring the full G3 upper guide,...
                  £32.80
                  £32.99
                  £32.80
                  Save £0.19
                • MRP 2X Lower Guide Kit for bike chain device, includes components for improved drivetrain performance.MRP 2X Lower Guide Kit for bike chain device, components used for optimal drivetrain performance on mountain bikes.

                    MRP 2X Lower Guide Kit Chain Device for Optimal Bike Drivetrain Performance

                    The MRP 2X Lower Guide Kit Chain Device is engineered to optimize your bike’s drivetrain performance with precision and reliability. Crafted by MRP, a leader in durable and innovative bicycle components, this lower guide kit ensures your chain stays perfectly aligned and tensioned, minimizing...
                    £32.80
                    £32.99
                    £32.80
                    Save £0.19
                  • MRP Chain Device 1x Guide V3 Carbon CX Braze-On for silent chain retention, bike component with durable carbon constructionMRP Chain Device 1x Guide V3 Carbon CX braze-on silent chain retention component for bicycle drivetrain.

                    MRP Chain Device 1x Guide V3 Carbon CX Braze-On Silent Chain Retention - Black

                    Experience reliable chain retention with the MRP Chain Device 1x Guide V3 Carbon CX. Designed for aggressive riding, this braze-on guide features a new co-mold rubber upper guide that ensures truly silent chain operation. Its sleek black finish not only looks great but also...
                    £109.99
                    £109.99
                    • Black
                  • MRP V3 Braze-On Mount Chain Guide for 1x drivetrains, durable bike components for reliable chain retention.MRP Chain Device 1x V3 Braze-On Mount Chain Guide for 1x drivetrain, bike component with durable construction.

                    MRP Chain Device 1x V3 Braze-On Mount Chain Guide for 1x Drivetrains - Black

                    The MRP Chain Device 1x V3 is designed to keep your drivetrain smooth and reliable. Featuring a durable braze-on mount and a new co-mold rubber upper guide, it ensures silent operation even on the roughest trails. Its sleek black finish complements any bike setup...
                    £104.99
                    £104.99
                    • Black
                  • MRP Chain Device 1x Guide V3 Direct Mount, silent and stable bike chain guide for mountain biking components.MRP Chain Device 1x Guide V3 Direct Mount for mountain bikes, silent and stable chain guide component.

                    MRP Chain Device 1x Guide V3 Direct Mount – Silent, Stable 1x Chain Guide - Black

                    The MRP Chain Device 1x Guide V3 - Direct Mount offers a reliable solution for maintaining chain stability on challenging rides. Featuring a co-mold rubber upper guide, it ensures silent and smooth operation, reducing unwanted noise and enhancing your riding experience. Its direct mount...
                    £79.99
                    £79.99
                    • Black
                  • MRP Chain Device 1x Guide V3 Carbon Braze-On Mount for quiet chain retention, mounted on bike component.MRP Chain Device 1x Guide V3 Carbon Braze-On Mount for quiet chain retention, bike component with sleek carbon finish

                    MRP Chain Device 1x Guide V3 Carbon Braze-On Mount Quiet Chain Retention - Black

                    The MRP Chain Device 1x Guide V3 Carbon offers reliable chain retention with a sleek, lightweight design. Its braze-on mount ensures a secure fit, while the new co-mold rubber upper guide guarantees whisper-quiet operation. Finished in black, it seamlessly blends with your bike’s aesthetics....
                    £114.99
                    £114.99
                    • Black
                  • MRP SXg mountain bike chain device with skid plate, high-performance bike chain guide for MTB components.MRP SXg mountain bike chain device with skid plate, high-performance bike chain guide for durable cycling components.

                    MRP SXg Chain Device – High-Performance Mountain Bike Chain Guide with Skid Plate - Black

                    The MRP SXg Chain Device is a groundbreaking solution that redefines what a chain guide can be. Designed to offer unmatched protection and retention without sacrificing weight or efficiency, this innovative component is perfect for riders who demand the best in performance and reliability....
                    £189.99
                    £189.99
                    • Black
                  • MRP SXg Carbon mountain bike chain device, high-security chain guide, lightweight components for secure gear shifting, black finishMRP SXg carbon mountain bike chain guide component with high-security design for BMX and mountain biking.

                    MRP SXg Carbon Chain Device - High-Security Mountain Bike Chain Guide - Black

                    The MRP SXg Carbon Chain Device redefines the standards of chain retention and protection in mountain biking components. Designed with precision and innovation, it offers unparalleled security for your chainring without compromising weight or efficiency. Whether you ride aggressive short-travel bikes or take on...
                    £219.99
                    £219.99
                    • Black
                  • MRP SXg Carbon Backplate Chain Device for bike drivetrain stability, showing close-up of the lightweight component.MRP SXg Carbon backplate chain device for bike drivetrain stability, showing sleek black component with mounting hardware.

                    MRP SXg Carbon Backplate Chain Device for Bike Drivetrain Stability - Black

                    The MRP Chain Device - SXg Carbon Backplate enhances your bike's transmission system with durable, lightweight carbon construction. Designed for optimal chain retention, it ensures smooth, reliable shifting on challenging trails. Compatible with SXg guide systems, this component offers precision and strength, improving overall...
                    £134.22
                    £134.99
                    £134.22
                    Save £0.77
                    • Black
                  • MRP SXg Backplate Chain Device showing the enhanced chain retention and durable components for improved drivetrain performance.

                    MRP SXg Backplate Chain Device – Enhanced Chain Retention & Drivetrain Performance - Black

                    The MRP Chain Device - SXg Backplate is an essential upgrade for cyclists aiming to optimize their bike’s transmission system. Crafted with precision by MRP, a leader in cycling components, this backplate ensures superior chain retention and reliable performance. Its sturdy construction withstands rigorous...
                    £89.47
                    £89.99
                    £89.47
                    Save £0.52
                    • Black
                  • MRP SB-3 Boomerang Chain Device for slalom and mini-me bikes, showing standard and ISCG mounts in a close-up view.MRP SB-3 Boomerang chain device for slalom and mini-me bikes, mounted on standard and ISCG bike frame components.

                      MRP SB-3 Boomerang Chain Device for Slalom & Mini-me Bikes, Standard & ISCG Mounts - Black

                      The MRP SB-3 Boomerang is a durable 2-arm chain device crafted from pressed steel with a sleek black powder-coated finish. Designed specifically for Slalom or Mini-me sizes, it ensures optimal chain retention and smooth transmission. Compatible with both Standard and ISCG mounting options, this...
                      £49.71
                      £49.99
                      £49.71
                      Save £0.28
                      • Black
                    • MRP S4 backplate chain device replacement for bike transmission, showcasing the durable component with mounting hardware.MRP S4 backplate chain device replacement for enhanced bike transmission, showing the component in a close-up view.

                        MRP S4 Backplate Chain Device Replacement for Enhanced Bike Transmission - Black

                        The MRP Chain Device - S4 Backplate is a meticulously crafted component designed to elevate your bike's transmission system to new levels of reliability and efficiency. Engineered by MRP, a brand synonymous with precision and durability, this backplate plays a crucial role in maintaining...
                        £54.69
                        £55.00
                        £54.69
                        Save £0.31
                        • Black
                      • MRP Mini-G Boomerang Chain Device Upper Guide for Mini G2 Drivetrains, bike component, black and silver designMRP Mini-G Boomerang Chain Device Upper Guide for Mini G2 Drivetrains, durable bicycle component for smooth shifting.

                          MRP Mini-G Boomerang Chain Device Upper Guide for Mini G2 Drivetrains - Gold

                          The MRP Mini-G Boomerang Chain Device ensures smooth and reliable chain retention for your Mini G2 drivetrain. Designed as a precise spare part, it fits perfectly to maintain optimal transmission performance. This upper guide is compatible with Mini G2 and 1x Guide V1 models...
                          £54.69
                          £55.00
                          £54.69
                          Save £0.31
                          • Gold
                        • MRP MiniG3/G4 Boomerang chain device for high-performance bike transmission, showing the compact, durable component in detail.MRP MiniG3/G4 Boomerang chain device for high-performance bike transmission, showing the compact chain guide and component details.

                            MRP MiniG3/G4 Boomerang Chain Device – High-Performance Bike Transmission Component - Black

                            The MRP Chain Device - MiniG3/G4 Boomerang is a precision-engineered component designed to optimize your bicycle’s transmission system. Crafted by MRP, a brand synonymous with reliability and innovation, this chain device offers superior chain retention and smooth shifting performance. Its robust build quality and...
                            from £69.58
                            £69.99
                            from £69.58
                            Save £0.41
                            • Black
                          • MRP MiniG2 SL boomerang chain device for precise bike chain control, mounted on a mountain bike drivetrain.

                              MRP MiniG2 SL Boomerang Chain Device for Precise Bike Chain Control - Black

                              The MRP Chain Device - MiniG2 SL Boomerang is a precision-engineered component crafted to elevate your bicycle’s transmission performance. Developed by MRP, a leader in cycling innovation, this device ensures exceptional chain retention and smooth shifting, minimizing chain drops even during the most demanding...
                              £54.69
                              £55.00
                              £54.69
                              Save £0.31
                              • Black
                            • Placeholder image

                                MRP Chain Device MicroG2 SL Boomerang for Enhanced Bike Chain Retention - Black

                                The MRP Chain Device - MicroG2 SL Boomerang ensures smooth chain retention for reliable performance. Crafted with precision, it enhances your bike's transmission efficiency and durability. What It’s Good For Improves chain stability on rough terrain Compatible with Micro G2 Guides Enhances overall drivetrain...
                                £54.69
                                £55.00
                                £54.69
                                Save £0.31
                                • Black
                              • MRP G3/G4 Boomerang chain device for bike transmission, a premium component shown in the image.MRP G3/G4 Boomerang bike chain device component for transmission systems, shown in black with branding details.

                                  MRP Chain Device G3/G4 Boomerang – Premium Bike Transmission Component - Black

                                  The MRP Chain Device - G3/G4 Boomerang is a premium component designed to elevate your bicycle's transmission system. Crafted by MRP, a respected name in cycling, this chain device guarantees precise chain retention and smooth shifting, essential for riders aiming to maximize drivetrain performance....
                                  from £60.89
                                  £69.99
                                  from £60.89
                                  Save £9.10
                                  • Black
                                • MRP G2 SL Boomerang mountain bike chain retention system mounted on bike frame, showcasing durable components and design details.MRP G2 SL Boomerang mountain bike chain retention device mounted on bike drivetrain component.

                                    MRP Chain Device G2 SL Boomerang - Mountain Bike Chain Retention System - Black

                                    The MRP Chain Device - G2 SL Boomerang ensures smooth chain retention and optimal shifting performance. Designed with precision, it offers reliable protection and durability for your transmission system. Made from high-quality materials, this component enhances drivetrain efficiency and reduces chain drops during aggressive...
                                    £54.69
                                    £55.00
                                    £54.69
                                    Save £0.31
                                    • Black
                                  • MRP AMg V2 Chain Device carbon backplate for drivetrain protection, mounted on bicycle drivetrain components.MRP AMg V2 chain device with carbon backplate for drivetrain protection, showing sleek black component designed for bike components.

                                    MRP AMg V2 Chain Device Carbon Backplate for Drivetrain Protection - Black

                                    The MRP Chain Device - AMg V2 Carbon Backplate offers durable protection and reliable performance for your drivetrain. Crafted with high-quality carbon, it ensures lightweight strength and longevity. Designed to perfectly fit AMg V2 models, this backplate enhances chain retention and guards against impacts,...
                                    £99.42
                                    £99.99
                                    £99.42
                                    Save £0.57
                                    • Black
                                  • MRP chain device with two steel backplates for durable bike transmission components, shown in the image.MRP chain device with two steel backplates for durable bike transmission components, showcasing the robust construction and design.

                                    MRP Chain Device with 2x Steel Backplates for Durable Bike Transmission Performance - Black

                                    The MRP Chain Device with 2x Steel Backplate is an essential upgrade for cyclists aiming to improve their bike’s transmission performance. Crafted by MRP, a leading name in cycling components, this device offers reliable chain retention and smooth control, significantly reducing the chances of...
                                    £29.82
                                    £29.99
                                    £29.82
                                    Save £0.17
                                    • Black
                                  • MRP chain device with 2x backplate for precise bike transmission control, shown with components and installation details.MRP chain device with 2x backplate for precise bike transmission control, component for bike drivetrain adjustment.

                                    MRP Chain Device with 2x Backplate for Precise Bike Transmission Control - Black

                                    The MRP Chain Device with 2x Backplate is an essential upgrade for any cyclist aiming to optimize their bike’s transmission system. Crafted by MRP, a leader in high-performance cycling components, this device offers precise chain management to ensure smooth and reliable gear shifts. Its...
                                    from £60.89
                                    £69.99
                                    from £60.89
                                    Save £9.10
                                    • Black
                                  • MRP 2x Chain Device for 2x9/10/11 speed drivetrains with steel chain guide, bike component for smooth shifting.MRP 2x Chain Device for 2x9/10/11 speed drivetrains with steel chain guide, bike component for smooth shifting.

                                    MRP 2x Chain Device for 2x9/10/11 Speed Drivetrains with Steel Chain Guide - Black

                                    The MRP Chain Device - 2x Steel Chain Device offers a robust and efficient solution for riders equipped with 2x9/10/11 speed drivetrains. Specifically engineered to meet the unique challenges posed by modern mountain bike gear systems, this device expertly manages chain retention, ensuring smooth...
                                    £89.99
                                    £89.99
                                    • Black
                                  Recently Viewed Products

                                  Protect your drivetrain on the trail with our MRP collection at Swinnerton Cycles. MRP produces premium chain guides, bash guards, and suspension components for mountain biking — trusted by enduro and downhill riders for their durability and performance in the most demanding conditions. Browse the full MRP range and explore our wider Chain Devices and Bash Guards collections.

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