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.

Sidebar
Filter
  • 10
  • 15
  • 20
  • 25
  • 30
  • 50
  • Featured
  • Most relevant
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old
Sort
Sort by:
  • Featured
  • Most relevant
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old
  • 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
                  • MRP chain device upper guide for Shimano E8000 E-MTB with 34-38T chainrings, showcasing the components and installation details.MRP chain device upper guide for Shimano E8000 E-MTB, designed for 34-38T chainrings, bike components accessory.

                    MRP Chain Device Upper Guide for Shimano E8000 E-MTB 34-38T Chainrings - Black

                    Enhance your e-MTB with the MRP Chain Device designed for Shimano E8000. This upper chain guide ensures smooth and reliable chain retention, minimizing drops on rough terrains. Compatible with 34-38T chainrings, it offers precision and durability for your transmission system. Built to withstand rigorous...
                    £89.99
                    £89.99
                    • Black
                  • MRP CS upper chain device for 1x10/11/12-speed drivetrain, boost compatible, cycling component for smooth gear shiftingMRP 1x CS Upper Chain Device for 1x10-12 speed drivetrains, boost compatible, bike components, durable cycling upgrade

                    MRP 1x CS Upper Chain Device for 1x10/11/12-Speed Drivetrains Boost Compatible - Black

                    The MRP Chain Device - 1x CS Upper Chain Device offers a perfect blend of reliability and affordability for riders seeking enhanced drivetrain security. Drawing on over 20 years of MRP’s expertise, this core series model incorporates a stiff, glass-filled composite backplate paired with...
                    £54.99
                    £54.99
                    • Black
                  • MRP AMG V2 backplate chain device for bike transmission, showing the black metal component designed to improve shifting performance.MRP AMG V2 backplate chain device for bike transmission, showcasing durable metal construction and precise component design.

                      MRP AMg V2 Backplate Chain Device for Enhanced Bike Transmission Performance - Black

                      The MRP Chain Device - AMg V2 Backplate is a meticulously crafted component that significantly improves the performance and reliability of your bike’s transmission system. Designed by MRP, a leader in cycling technology, this backplate features durable materials and precise engineering to ensure long-lasting...
                      £64.62
                      £64.99
                      £64.62
                      Save £0.37
                      • Black
                    • MRP XCG V2 chain device with 36t gear and replaceable nylon skid for bike protection, mounted on a mountain bike chainstay.MRP XCG V2 chain device with 36t sprocket and replaceable nylon skid for bike protection, showcasing its durable components.

                        MRP XCG V2 Chain Device 36t with Replaceable Nylon Skid for Bike Protection - Black

                        The MRP Chain Device - XCG V2 Chain Device 36t is designed to protect your bike's chainrings with a patented integrated skid that fits perfectly behind your crankset. Its replaceable nylon skid ensures smooth gliding over rocks and rough terrain, minimizing damage during your...
                        £89.99
                        £89.99
                        • Black
                      • MRP Better Boost adaptor kit for Hope Pro 2/4 hubs, front wheel conversion component showing the hub and adaptor parts.MRP Better Boost Adaptor Kit for Hope Pro 2/4 hubs, front wheel conversion component, bicycle bike part, high-quality cycling accessory

                          MRP Better Boost Adaptor Kit for Hope Pro 2 / 4 Hubs – Front Wheel Conversion

                          The MRP Better Boost Adaptor Kit for Hope Pro 2 / 4 hubs is the perfect solution to upgrade your front wheel without the hassle of replacing it entirely. Designed to convert your existing 15x100mm hubs to the Boost standard of 15x110mm, this kit...
                          £54.99
                          £54.99
                        • MRP Better Boost Adapter Kit for Chris King SD/LD hubs, 15x110 boost conversion, showcasing the component parts and hardware.

                            MRP Better Boost Adapter Kit for Chris King SD/LD Hubs 15x110 Boost Conversion

                            The MRP Better Boost Adaptor Kit for Chris King SD/LD hubs is designed to seamlessly convert your front wheel to a 15x110 Boost standard without the hassle of rebuilding your wheel. This kit allows you to upgrade your fork while retaining your existing 15x100mm...
                            £54.99
                            £54.99
                          • MRP Better Boost Adapter Kit for DT Swiss 240 OS 15x100mm hub components, showing the metal spacer parts and installation details.

                              MRP Better Boost Adapter Kit for DT Swiss 240 OS 15x100mm Hub Spares

                              Upgrade your front wheel effortlessly with the Mrp Better Boost Adaptor Kit designed specifically for DT Swiss 240 OS 15x100mm hubs. This precision-engineered kit converts your existing hubs to the modern 15x110mm Boost standard, allowing compatibility with newer Boost forks without the hassle of...
                              £54.99
                              £54.99
                            • MRP Better Boost Adapter Kit for I9 Torch 6 Bolt Hub, 15x100 to 15x110mm wheel spacers, bike components, MRP brand

                                MRP Better Boost Adapter Kit for I9 Torch 6 Bolt Hub Spares 15x100 to 15x110mm

                                Upgrade your front wheel setup effortlessly with the MRP Better Boost Adaptor Kit for I9 Torch 6 Bolt Hubs. Designed specifically for 15x100mm hubs, this kit converts them to 15x110mm Boost spacing, allowing seamless compatibility with modern Boost forks. Unlike other kits, it ensures...
                                £54.99
                                £54.99
                              • MRP Better Boost adaptor kit for Stans 3.3/ZTR 15x100 to 15x110mm hub conversion, bike wheel component for improved fit

                                  MRP Better Boost Adaptor Kit for Stans 3.3/ZTR 15x100 to 15x110mm Hub Conversion

                                  Upgrade your bike effortlessly with the MRP Better Boost Adaptor Kit for Stans 3.3/3.3 Ti/ZTR 15x100mm hubs. Designed to convert your front wheel hub from 15x100mm to 15x110mm, this adaptor kit lets you keep your existing front wheel when switching to a Boost 15x110mm...
                                  £54.99
                                  £54.99
                                • MRP Better Boost Adapter Kit for DT Swiss 240 Centerlock hubs, converts 15x100mm to 15x110mm boost through component upgrade

                                    MRP Better Boost Adapter Kit for DT Swiss 240 Centerlock Hubs 15x100 to 15x110mm

                                    Upgrade your DT Swiss 240s C/Lock "Fifteen" 15x100mm hubs effortlessly with the MRP Better Boost Adaptor Kit. This front boost adapter kit converts your existing hubs to the modern 15x110mm Boost standard, allowing you to use your current wheel with a new Boost fork...
                                    £54.99
                                    £54.99
                                  • MRP Better Boost Adapter Kit for DT240 6-Bolt Hub, converts 15x100mm to 15x110mm for bike wheel compatibility.MRP Better Boost Adapter Kit for DT240 6-Bolt Hub, converts 15x100 to 15x110mm, bike components for wheel compatibility.

                                      MRP Better Boost Adapter Kit for DT240 6-Bolt Hub Spares 15x100 to 15x110mm

                                      The MRP Better Boost Adaptor Kit DT240 6 Bolt Hub Spares is the perfect solution for upgrading your front wheel setup without the hassle of replacing it entirely. Specifically designed to convert compatible DT Swiss 240s 6-bolt 15x100mm hubs to the Boost 15x110mm standard,...
                                      £54.99
                                      £54.99
                                    • MRP Better Boost Adapter Kit for DT Swiss 350 6 Bolt hub, converts 15x100mm to 15x110mm boost spacing, bike component partMRP Better Boost Adapter Kit for DT Swiss 350 6 Bolt hub, converts 15x100mm to 15x110mm boost spacing, bike component spare

                                        MRP Better Boost Adapter Kit for DT Swiss 350 6 Bolt Hub Spares 15x100 to 15x110mm

                                        The Mrp Better Boost Adaptor Kit for DT Swiss 350 6 Bolt Hub Spares is the ideal solution for upgrading your front wheel to the Boost standard without the hassle of replacing your entire setup. Specifically designed to convert compatible DT-Swiss 15x100mm hubs to...
                                        £54.99
                                        £54.99
                                      • MRP G2 Boomerang chain device for precise chain retention and shifting on bike components, shown mounted on a bicycle drivetrain.MRP G2 Boomerang Chain Device for precise chain retention and smooth shifting on mountain bike components.

                                          MRP G2 Boomerang Chain Device for Precise Chain Retention & Shifting - Black

                                          The MRP G2 Boomerang Chain Device ensures smooth chain retention and reliable shifting performance. Designed specifically for the G2 system, it offers precise chain control on rugged terrain. Crafted with durable materials, this component enhances drivetrain efficiency and reduces chain drops, keeping you focused...
                                          £54.69
                                          £55.00
                                          £54.69
                                          Save £0.31
                                          • Black
                                        • MRP Minig2 SL lower skid plate chain device for mountain bike drivetrain protection, shown mounted on bike drivetrain components.MRP Minig2 SL lower skid plate chain device for mountain bike drivetrain protection, showing the black lightweight component.

                                            MRP Minig2 SL Lower Skid Plate Chain Device for Mountain Bike Drivetrain Protection - White

                                            The MRP Minig2 SL Lower Skid Plate Chain Device is engineered to elevate your bike’s transmission performance with unmatched durability and precision. Designed by MRP, a leader in mountain biking components, this chain device ensures your drivetrain operates smoothly even under the toughest trail...
                                            from £29.00
                                            £34.99
                                            from £29.00
                                            Save £5.99
                                            • Black
                                            • White
                                          • Mrp Mrp Progressive Shock Spring Spares & Accessories

                                            MRP Progressive Shock Spring Spare for Rear Shock Absorption & Control - Black

                                            Upgrade your ride with the MRP Progressive Shock Spring, designed for superior rear shock performance. Crafted for durability and smooth transmission, it enhances your bike's handling and responsiveness. Its lightweight design ensures minimal added weight while delivering progressive damping, perfect for tackling varied terrain...
                                            £108.00
                                            £108.00
                                            • Black
                                          • MRP XCG V2 2-bolt chain device with replaceable nylon skid for evil bikes, shown mounted on bike drivetrain components.MRP XCG V2 2-bolt chain device with replaceable nylon skid for Evil Bikes, shown mounted on bike drivetrain components.

                                              MRP XCG V2 2-Bolt Chain Device with Replaceable Nylon Skid for Evil Bikes

                                              The MRP Xcg V2 Chain Device 2-Bolt is expertly crafted to safeguard your bike's drivetrain. Featuring MRP's patented integrated skid, it fits seamlessly behind your crankset, effectively shielding your valuable chainrings from damage. Its replaceable nylon skid ensures smooth gliding over rocks and rough...
                                              £89.99
                                              £89.99
                                            • MRP XCG Micro Chain Device 30T, precision bike chain retention component, shown on a bicycle drivetrain for secure gear shifting.MRP XCG Micro Chain Device 30T for bike chain retention, shown mounted on a mountain bike crankset.

                                                MRP XCG Micro Chain Device 30T – Precision Bike Chain Retention Component

                                                The MRP XCG Micro Chain Device 30t is expertly crafted to improve your bike’s transmission system with precision and reliability. Known for its exceptional quality, MRP has designed this component to provide consistent chain retention, significantly reducing the chance of chain drops even during...
                                                £69.99
                                                £69.99
                                              • MRP 1X E-MTB chain guide for Shimano E8000 and E7000 electric mountain bike drivetrains, durable bike component.MRP 1X E-MTB chain guide for Shimano E8000 and E7000 e-mountain bike drivetrains, designed for durable chain retention.

                                                  MRP 1X E-MTB CS Upper Chain Device for Shimano E8000 E7000 Drivetrains

                                                  The MRP 1X E-MTB CS Upper Chain Device ensures precise chain retention for Shimano E8000/E7000 drivetrains. Its steel backplate delivers durability, while the upper polycarbonate guide provides smooth, reliable shifting performance on rugged trails. What It’s Good For Maintaining chain stability on rough terrain...
                                                  £59.99
                                                  £59.99
                                                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.

                                                Why Swinnerton Bikes

                                                Free UK Shipping Over £50

                                                Fast free shipping on all UK orders over £50
                                                Price Match

                                                *Seen it cheaper, let us know & we'll match it.
                                                Spread The Cost with Klarna

                                                Pay in instalments or pay later with Klarna.