Bike Rear Mech

Bike Rear Mechs at Swinnerton CyclesPrecise, reliable gear changes start with a quality rear derailleur. Our bike rear mech collection at Swinnerton Cycles covers road, MTB, and gravel options from all major groupset manufacturers — from entry-level mechanical systems to top-tier wireless electronic derailleurs. The rear derailleur is one of...

Bike Rear Mechs at Swinnerton Cycles

Precise, reliable gear changes start with a quality rear derailleur. Our bike rear mech collection at Swinnerton Cycles covers road, MTB, and gravel options from all major groupset manufacturers — from entry-level mechanical systems to top-tier wireless electronic derailleurs. The rear derailleur is one of the most critical components in your drivetrain, and choosing the right one for your cassette range, frame, and groupset is essential. We stock rear mechs from Shimano, SRAM, Campagnolo, and MicroSHIFT. Explore Road Rear Mechs, MTB Rear Mechs, Gravel Rear Mechs, and Rear Mech Spares.

Popular Rear Mechs

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Road Rear Mech
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Rear Mech Spares
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  • Shimano Rd-Tx800 Tourney Tx Rear Derailleur Direct Mount Silver Rear MechShimano Tourney / TY RD-TX800 Tourney TX Rear Derailleur, Direct Mount, Silver | Swinnerton Cycles

      Shimano Tourney TX RD-TX800 Rear Derailleur Direct Mount 8-Speed Silver

      The Shimano Tourney TX RD-TX800 Rear Derailleur offers smooth and reliable shifting for your mountain bike. Designed with oversized 13-tooth pulleys, it reduces noise and wear while providing a wide gear range. Its direct mount silver finish enhances durability and style, ensuring consistent performance...
      £21.77
      £29.99
      £21.77
      Save £8.22
    • Shimano Rd-T8000 Xt Trekking Rear Derailluer Sgs Long Cage 10-Speed Rear MechShimano Deore XT RD-T8000 XT trekking rear derailleur, SGS long cage, 10-speed | Swinnerton Cycles

        Shimano Deore XT RD-T8000 10-Speed MTB Rear Derailleur SGS Long Cage Direct Mount

        The Shimano Deore XT RD-T8000 rear derailleur combines precision engineering with durable materials to deliver reliable shifting performance for 10-speed MTB setups. Its SGS long cage design offers a 47T capacity, accommodating a wide range of gears and ensuring smooth transitions across all terrain....
        £89.99
        £89.99
      • Shimano Rd-T6000 Deore 10-Speed Rear Derailleur Sgs Black Rear MechShimano Deore RD-T6000 Deore Trekking rear derailleur, SGS, black 10 speed | Swinnerton Cycles

          Shimano Deore RD-T6000 SGS Rear Derailleur 10-Speed Trekking MTB Shadow Design

          The Shimano Deore RD-T6000 rear derailleur is engineered for precision and durability, making it an essential component for any trekking enthusiast. Featuring a wide link Shadow design and Dyna-Sys 10-speed compatibility, it offers smooth and reliable shifting performance. Its double servo-panta mechanism ensures light,...
          £56.55
          £59.99
          £56.55
          Save £3.44
        • SRAM NX Eagle 12-speed MTB rear derailleur in black with X-HORIZON and Type-3 clutch for smooth gear shifting.SRAM NX Eagle 12-speed MTB rear derailleur in black with X-HORIZON and Type-3 clutch, showcasing its design and construction.

            SRAM NX Eagle Rear Derailleur 12 Speed MTB Black with X-HORIZON™ & Type-3 Clutch

            Experience precision and reliability with the SRAM Rear Derailleur NX Eagle 12 Speed in sleek black, designed specifically for MTB enthusiasts seeking top-tier performance. This derailleur incorporates SRAM’s innovative X-HORIZON™ design, engineered to maintain a stable and consistent chain line for smoother, more accurate...
            £101.58
            £117.00
            £101.58
            Save £15.42
          • Sram X1 Rear Derailleur Type 2.1 11 Speed Rear MechSRAM X1 Rear Derailleur - Type 2.1 - 11 Speed: 11 SPEED | Swinnerton Cycles

              SRAM X1 Type 2.1 Rear Derailleur 11 Speed MTB with X-HORIZON & CAGE LOCK Technology

              The SRAM X1 Rear Derailleur - Type 2.1 offers precise and reliable shifting performance for 11-speed mountain bikes. Designed with innovative technology like the X-HORIZON system, it minimizes chain movement to deliver faster, smoother shifts while eliminating ghost shifting and reducing chain slap. Its...
              £213.27
              £217.00
              £213.27
              Save £3.73
            • Sram X5 Rear Derailleur (10Spd) Medium Cage Black Rear MechSRAM X5 Rear Derailleur - (10spd) - Medium Cage - Black: BLACK 10SPD MEDIUM | Swinnerton Cycles

                SRAM X5 Rear Derailleur 10-Speed MTB Medium Cage Black for Smooth Shifting

                The SRAM X5 Rear Derailleur is designed for MTB riders seeking reliable, smooth shifting in challenging conditions. Featuring 10-speed compatibility and a medium cage, it delivers precise gear changes with SRAM’s trusted X-Glide technology, enhancing your off-road performance effortlessly. Built to withstand rugged trails,...
                £48.30
                £55.00
                £48.30
                Save £6.70
              • Sram X5 Rear Derailleur (10Spd) Long Cage Black Rear MechSRAM X5 Rear Derailleur - (10spd) - Long Cage - Black: BLACK 10SPD LONG | Swinnerton Cycles

                  SRAM X5 10-Speed Rear Derailleur Long Cage MTB Black for Mountain Bikes

                  The SRAM X5 Rear Derailleur offers reliable 10-speed performance with a long cage design, perfect for MTB enthusiasts. Its smooth X-Glide shifting ensures precise gear changes, enhancing your off-road riding experience. Durable and efficient, it adapts seamlessly to challenging terrains. What It’s Good For...
                  £48.30
                  £55.00
                  £48.30
                  Save £6.70
                • Sram X3 Rear Derailleur (7-8Spd) Long Cage Black Rear MechSRAM X3 Rear Derailleur - (7-8spd) Long Cage Black: BLACK 7/8 SPEED LONG | Swinnerton Cycles

                    SRAM X3 Rear Derailleur Long Cage 7-8 Speed MTB Black for Mountain Bikes

                    The SRAM X3 Rear Derailleur offers reliable shifting for 7-8 speed drivetrains. Its long cage design ensures smooth chain movement and optimal performance on mountain bikes. Built to withstand rugged trails, this black derailleur enhances your bike’s transmission with durable materials and precise engineering....
                    £18.90
                    £19.00
                    £18.90
                    Save £0.10
                  • Shimano Saint RD-M820 10-speed rear derailleur with Shadow+ design and direct mount for MTB bikes.Shimano Saint RD-M820 10-speed rear derailleur with Shadow+ design and MTB direct mount, showcasing durable metal construction.

                      Shimano Saint RD-M820 10-Speed Rear Derailleur Shadow+ Design MTB Direct Mount

                      The Shimano Saint RD-M820 is a high-performance 10-speed rear derailleur designed for serious mountain bikers seeking precision and durability. Featuring the innovative Shadow+ design, this derailleur offers a low-profile silhouette that significantly reduces the risk of damage from trail obstacles, ensuring your ride stays...
                      £154.99
                      £154.99
                    • Shimano Deore XT RD-M8150 Di2 rear derailleur with long cage for 11-speed mountain bike, Shimano Deore XT components.Shimano Deore XT RD-M8150 Di2 rear derailleur with long cage for 11-speed drivetrain, Shimano Deore XT components, shadow+ technology.

                        Shimano Deore XT RD-M8150 Di2 Rear Derailleur SGS Long Cage 11-Speed Shadow+

                        The Shimano Deore XT RD-M8150 Di2 rear derailleur sets a new standard in mountain biking performance with its advanced digital integration. Designed for 11-speed drivetrains, this SGS long cage derailleur delivers seamless, precise shifting thanks to its electronic Di2 system, ensuring smooth gear changes...
                        £325.38
                        £329.99
                        £325.38
                        Save £4.61
                      • Shimano Rd-M8130 Xt Link Glide 11-Speed Rear Derailleur Shadow+ Sgs For Single Rear MechShimano Deore XT RD-M8130 XT Link Glide 11-speed rear derailleur, Shadow+, SGS, for single | Swinnerton Cycles

                          Shimano Deore XT RD-M8130 Link Glide 11-Speed Shadow+ SGS Rear Derailleur for Single Chainring

                          The Shimano Deore XT RD-M8130 XT Link Glide rear derailleur is engineered for riders who demand precision and durability on every trail. Featuring Shadow+ technology, this 11-speed derailleur offers a super low profile design that ensures smooth, fast shifting with minimal chain bounce even...
                          £108.40
                          £109.99
                          £108.40
                          Save £1.59
                        • Shimano Deore XT RD-M8120 12-speed MTB rear derailleur with Shadow+ SGS design, mounted on a bicycle drivetrain.Shimano Deore XT RD-M8120 12-speed MTB rear derailleur with Shadow+ SGS design, mounted on a mountain bike drivetrain.

                            Shimano Deore XT RD-M8120 12-Speed MTB Rear Derailleur Shadow+ SGS Double

                            The Shimano Deore XT RD-M8120 is a premium 12-speed rear derailleur designed specifically for MTB enthusiasts seeking top-tier performance and reliability. Featuring the innovative Shadow+ technology, this derailleur boasts a sleek, low-profile design that ensures smooth and precise shifting even in the most demanding...
                            £108.40
                            £109.99
                            £108.40
                            Save £1.59
                          • Shimano Rd-M8050 Xt Di2 E-Tube Rear Derailluer Gs Medium Cage Shadow+ 11-Speed Rear MechShimano Rd-M8050 Xt Di2 E-Tube Rear Derailluer Gs Medium Cage Shadow+ 11-Speed Rear Mech

                              Shimano Deore XT RD-M8050 Di2 E-Tube Rear Derailleur GS Medium Cage 11-Speed Shadow+

                              The Shimano Deore XT RD-M8050 XT Di2 is a cutting-edge 11-speed rear derailleur designed for mountain biking enthusiasts who demand precision and reliability. Featuring Digital Integrated Intelligence (Di2), this rear mech offers programmed automatic shifting that ensures smooth, fast, and effortless gear changes at...
                              £305.54
                              £309.99
                              £305.54
                              Save £4.45
                            • Shimano SLX RD-M7000 GS 11-speed Shadow+ rear derailleur for MTB bikes, showcasing the black component with mounting hardware.Shimano SLX RD-M7000 GS 11-speed Shadow+ rear derailleur for mountain bikes, shown mounted on a bike drivetrain.

                                Shimano SLX RD-M7000 GS 11-Speed Shadow+ Rear Derailleur for MTB Bikes

                                The Shimano SLX RD-M7000 GS rear derailleur is engineered to bring professional-grade performance to your mountain bike at an accessible price. Featuring the innovative Shadow+ design, this 11-speed Dyna-Sys11 derailleur offers smooth, reliable shifts while maintaining a low profile to protect against trail hazards....
                                £78.82
                                £79.99
                                £78.82
                                Save £1.17
                              • Shimano Rd-M5130 Deore Link Glide 10-Speed Rear Derailleur Shadow+ Gs For Single Rear Mech

                                  Shimano Deore RD-M5130 Link Glide 10-Speed Shadow+ GS Rear Derailleur for 1x MTB

                                  The Shimano Deore RD-M5130 Deore Link Glide 10-speed rear derailleur delivers exceptional shifting performance tailored for mountain biking enthusiasts. Its Shadow+ technology offers a sleek, low-profile design that minimizes chain bounce, ensuring smooth and stable gear changes even on the roughest trails. Engineered with...
                                  £47.08
                                  £49.99
                                  £47.08
                                  Save £2.91
                                • Shimano Deore RD-M5100 11-speed MTB rear derailleur with Shadow+ technology and long cage, mounted on a mountain bike.Shimano Deore RD-M5100 11-speed MTB rear derailleur with Shadow+ technology and long cage for mountain biking.

                                    Shimano Deore RD-M5100 11-Speed MTB Rear Derailleur Shadow+ SGS Long Cage

                                    The Shimano Deore RD-M5100 rear derailleur delivers reliable 11-speed shifting designed for mountain biking enthusiasts seeking precision and durability. Featuring the innovative Shadow+ technology, its low profile and optimized slant angle ensure smooth and effortless gear changes even on the toughest trails. The chain...
                                    £51.85
                                    £54.99
                                    £51.85
                                    Save £3.14
                                  • Shimano Acera RD-M370 Altus 9-speed SGS rear derailleur for mountain bikes, black, showcasing derailleur with jockey wheels.Shimano Acera RD-M370 Altus 9-speed SGS rear derailleur for mountain bikes, black, showcasing the component's design and build.

                                      Shimano Acera RD-M370 Altus 9-Speed SGS Rear Derailleur for MTB Bikes Black

                                      The Shimano Acera RD-M370 Altus rear derailleur is engineered for reliable performance on 9-speed drivetrains, ideal for both mountain biking and everyday riding. Its wide link design enhances rigidity and durability, ensuring long-lasting service. Equipped with 11-tooth pulleys, it reduces chain noise and pulley...
                                      £31.89
                                      £39.99
                                      £31.89
                                      Save £8.10
                                    • SRAM GX T-Type Eagle AXS 12-speed MTB rear derailleur with battery mount, black metal and plastic components, mounted on bikeSRAM GX T-Type Eagle AXS 12-speed MTB rear derailleur with battery mount, black metal and plastic components, mounted on bike frame.

                                        SRAM GX T-Type Eagle AXS Rear Derailleur 12-Speed MTB (Battery Not Included)

                                        The SRAM Rear Derailleur GX T-Type Eagle AXS 12 speed redefines the mountain biking experience by combining advanced technology with rugged durability. Designed specifically for MTB enthusiasts, this rear mech offers seamless shifting and unmatched reliability under the most demanding conditions. Its innovative hangerless...
                                        £410.92
                                        £430.00
                                        £410.92
                                        Save £19.08
                                      • Sram Rear Derailleur X0 T-Type Eagle Axs 12 Speed (Battery Not Included) Rear Mech

                                          SRAM X0 T-Type Eagle AXS Rear Derailleur 12 Speed MTB Wireless 2023 (Battery Not Included)

                                          Experience the next level of mountain biking precision with the SRAM Rear Derailleur X0 T-Type Eagle AXS 12 speed. Designed for serious riders who demand unmatched durability and smooth performance, this derailleur integrates seamlessly with your bike’s drivetrain to deliver flawless gear changes every...
                                          £481.82
                                          £590.00
                                          £481.82
                                          Save £108.18
                                        • Sram Rear Derailleur Xx T-Type Eagle Axs 12 Speed (Battery Not Included) Rear Mech

                                            SRAM XX T-Type Eagle AXS Rear Derailleur 12 Speed MTB (Battery Not Included) 2023

                                            The SRAM Rear Derailleur XX T-Type Eagle AXS 12 speed revolutionizes mountain biking drivetrain performance with its innovative design and robust build. Crafted to integrate seamlessly with the cassette through a groundbreaking Hangerless Interface, this derailleur mounts directly around the wheel axle, delivering unmatched...
                                            £652.27
                                            £695.00
                                            £652.27
                                            Save £42.73
                                          • Sram Rear Derailleur Xx Sl T-Type Eagle Axs 12 Speed (Battery Not Included) Rear Mech

                                              SRAM XX SL T-Type Eagle AXS Rear Derailleur 12 Speed MTB 2023 (Battery Not Included)

                                              The SRAM Rear Derailleur XX SL T-Type Eagle AXS 12 speed revolutionizes mountain bike shifting with its innovative design and cutting-edge technology. Engineered specifically for high-performance MTB applications, this derailleur integrates seamlessly with the cassette through its pioneering Hangerless Interface, which mounts directly around...
                                              £667.62
                                              £695.00
                                              £667.62
                                              Save £27.38
                                            • Sram Xx1 Eagle 12 Speed Max 52T Rear MechSRAM Rear Derailleur XX1 Eagle 12 speed Max 52T: LUNAR 12 SPEED | Swinnerton Cycles

                                                SRAM XX1 Eagle Rear Derailleur 12-Speed Max 52T Lunar MTB Bike Component

                                                The SRAM Rear Derailleur XX1 Eagle 12 speed Max 52T in Lunar offers unmatched precision and durability for serious mountain bikers. Engineered to elevate your riding experience, this rear mech is designed to handle the most demanding terrains with flawless shifting performance. Its innovative...
                                                £303.00
                                                £303.00
                                              • Sram X01 Eagle 12 Speed Max 52T Rear MechSram X01 Eagle 12 Speed Max 52T Rear Mech

                                                  SRAM X01 Eagle 12-Speed Rear Derailleur Max 52T for MTB Drivetrains - Red

                                                  The Sram X01 Eagle 12 Speed Max 52T Rear Mech redefines precision and performance for mountain biking enthusiasts. Designed with an updated cage architecture, this rear derailleur ensures superior chain retention and smoother, more accurate shifts. Compatible with the latest 10-52t cassettes as well...
                                                  £238.41
                                                  £247.00
                                                  £238.41
                                                  Save £8.59
                                                  • Red
                                                  • Lunar
                                                • Sram Rear Derailleur Xx1 Eagle Axs 12 Speed Rear MechSRAM Rear Derailleur XX1 Eagle AXS 12 speed (Battery Not Included): BLACK 12 SPEED | Swinnerton Cycles

                                                    SRAM XX1 Eagle AXS Rear Derailleur 12-Speed Electronic MTB, Battery Not Included

                                                    The SRAM Rear Derailleur XX1 Eagle AXS 12 speed redefines mountain bike transmission technology with its advanced electronic shifting system. Designed to be the intelligent core of the AXS ecosystem, it offers precision and reliability far beyond a traditional mechanical derailleur. Featuring a shorter...
                                                    £715.28
                                                    £742.00
                                                    £715.28
                                                    Save £26.72
                                                  • Sram Rear Derailleur Ex1 1X8 Speed Long Cage Black (Max 48T) Rear MechSRAM Rear Derailleur EX1 1x8 Speed Long Cage Black (Max 48t): BLACK 8SPD LONG | Swinnerton Cycles

                                                      SRAM EX1 Rear Derailleur 1x8 Speed Long Cage MTB 48T Cassette Compatible Black

                                                      Experience smooth, reliable shifting with the SRAM Rear Derailleur EX1 1x8 Speed Long Cage. Designed for MTB use, it supports up to 48T cassettes, enhancing your bike’s performance on varied terrains. Its long cage design improves chain management for consistent transmission efficiency, making every...
                                                      £160.29
                                                      £173.00
                                                      £160.29
                                                      Save £12.71
                                                    • SunRace RDM97 LDB 9-speed mountain bike rear derailleur with long cage, showcasing the black component with metal jockey wheels.SunRace RDM97 LDB 9-speed mountain bike rear derailleur with long cage, mounted on a bike frame, showcasing gear compatibility.

                                                      Sunrace RDM97 LDB 9-Speed MTB Rear Derailleur Long Cage Rear Mech - Black

                                                      The Sunrace RDM97 LDB Rear Mech offers reliable shifting performance with its durable aluminum and steel construction. Designed for 9-speed MTB setups, it ensures smooth and precise gear changes every ride. Available in black or silver, it suits various bike styles. Featuring a 2:1...
                                                      £48.32
                                                      £49.99
                                                      £48.32
                                                      Save £1.67
                                                      • Black
                                                    • SunRace RDM900 MD 9-speed MTB rear derailleur with chain stabilizer, showcasing the durable bicycle component with mounting hardware.SunRace RDM900 MD 9-speed MTB rear derailleur with chain stabilizer, mounted on a bike drivetrain component.

                                                      Sunrace RDM900 MD Rear Mech 9-Speed MTB Rear Derailleur with Chain Stabiliser - Black

                                                      The Sunrace Rdm900 Md Rear Mech offers precise shifting for 9-speed MTB setups, supporting 1x drivetrains up to 51T. Its adjustable chain stabiliser ensures smooth, reliable performance on rough trails. Constructed with durable alloy bracket, outer link, and cage, this rear mech combines strength...
                                                      £43.40
                                                      £54.99
                                                      £43.40
                                                      Save £11.59
                                                      • Black
                                                    • SunRace RDM57 LD long cage rear derailleur for 8-speed mountain bike drivetrains, showing the black metal component with jockey wheels.SunRace RDM57 LD long cage rear derailleur for 8-speed mountain bike drivetrains, showing the black component with mounting hardware.

                                                      Sunrace RDM57 LD Long Cage Rear Mech for 8-Speed MTB Drivetrains - Black

                                                      The Sunrace Rdm57 LD Rear Mech offers reliable shifting performance for 8-speed mountain bikes. Its long cage design ensures smooth chain tension, enhancing drivetrain efficiency during challenging rides. Crafted with an aluminum outer link and steel pulley cage, it balances durability and weight. Featuring...
                                                      £16.63
                                                      £22.99
                                                      £16.63
                                                      Save £6.36
                                                      • Black
                                                    • MicroSHIFT M26 rear derailleur for 7/8-speed mountain bikes, showcasing the black lightweight component with mounting hardware.Microshift M26 7/8 speed MTB rear derailleur, lightweight cycling component for smooth gear shifting on mountain bikes.

                                                      Microshift M26 Rear Derailleur 7/8 Speed MTB Rear Mech for Smooth Shifting - Black

                                                      The Microshift M26 Rear Derailleur is designed to deliver smooth and reliable shifting for 7/8 speed MTB setups. Crafted with steel and composite materials, it offers durability and consistent performance on various terrains. Elevate your ride with precise gear changes that feel effortless. Its...
                                                      £15.99
                                                      £15.99
                                                      • Black
                                                    • MicroSHIFT Advent 9-speed MTB rear derailleur for trail riding, showcasing the clutch mechanism and durable component design.MicroSHIFT Advent clutch rear derailleur for 9-speed mountain bikes, designed for trail riding and smooth gear shifting.

                                                      Microshift Advent Clutch Rear Derailleur 9-Speed MTB Rear Mech for Trail Riding - Black

                                                      The Microshift Advent Clutch Rear Derailleur is engineered for mountain bikers seeking reliable performance on challenging trails. Its innovative clutch system, built with a proprietary ratchet-and-pawl tension assembly, ensures superior chain retention and durability even over the roughest terrain. This derailleur offers a modular...
                                                      from £58.00
                                                      £69.99
                                                      from £58.00
                                                      Save £11.99
                                                      • Black
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