M Part

Shop M Part cycling accessories at Swinnerton Cycles. M Part is a UK brand producing practical, well-made cycling accessories and workshop equipment at accessible price points. From bike floor stands and electronic horns to tools and maintenance accessories, M Part covers the everyday needs of cyclists and home mechanics who...

Shop M Part cycling accessories at Swinnerton Cycles. M Part is a UK brand producing practical, well-made cycling accessories and workshop equipment at accessible price points. From bike floor stands and electronic horns to tools and maintenance accessories, M Part covers the everyday needs of cyclists and home mechanics who want reliable products without paying a premium.

Their Megahorn electronic bike horn is a popular choice for commuters who need to be heard in traffic, while their Grandstand floor stand is a practical workshop essential for home mechanics.

  • Bike floor stands for home workshop and storage
  • Electronic bike horns for commuting safety
  • Cycling tools and maintenance accessories
  • Practical, well-made products at accessible prices
  • UK brand focused on everyday cycling needs

M Part Best Sellers

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

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  • Set of 10 M Part 1-1/8 inch star nuts for 25.4mm steerer tubes, bicycle components for secure headset installation.Set of ten M Part 1-1/8 inch star nuts for 25.4mm bike steerer tubes, bicycle components for secure headset installation.

      M Part 1-1/8 Inch Star Nuts 25.4mm Steerer Tube 10-Pack Refill for Bikes

      Upgrade your bike’s steering with M Part 1-1/8 inch Star Nuts, designed for 25.4mm steerer tubes. This 10-pack refill ensures you always have reliable spares on hand for smooth headset performance. Durable and precise, these star nuts provide secure headset adjustment, essential for maintaining...
      £10.17
      £15.00
      £10.17
      Save £4.83
    • M Part Elite Crown Race Reducer 30Mm Id Suits Zs56 Lower Cup Spares & AccessoriesM Part Elite Crown Race Reducer 30mm ID Suits ZS56 Lower Cup | Swinnerton Cycles

        M Part Elite Crown Race Reducer 30mm ID for ZS56 Lower Cup Headset Adapter

        The M Part Elite Crown Race Reducer 30mm ID is designed to seamlessly fit an 11/8th steerer tube fork to your M:Part Elite headset. Crafted for compatibility with ZS56 lower cups, it ensures a precise and secure connection. This component enhances steering performance by...
        £8.52
        £10.99
        £8.52
        Save £2.47
      • M Part Elite Headset Lower IS42/30 with quad sealed bearings for durable cycling performance, shown close-up of bearings and headset components.M Part Elite Headset Lower IS42/30 with quad sealed bearings for durable cycling performance, shown in close-up view.

          M Part Elite Headset Lower IS42/30 with Quad Sealed Bearings for Durable Cycling Performance

          The M Part Elite Headset Lower IS42/30 is engineered to deliver superior performance and durability for demanding cycling conditions. Designed and tested in the UK, it withstands the harsh British climate thanks to its quad sealed precision angular contact bearings and double sealed bearing...
          £25.37
          £34.99
          £25.37
          Save £9.62
        • M Part Part M:P Hpspcr1-1/8 5/10/15Black Spares & AccessoriesM Part Splined Alloy Headset Spacers 1-1/8 inch, 5 / 10 / 15 mm Black, Pack of 3 | Swinnerton Cycles

            M Part Splined Alloy Headset Spacers 1-1/8 Inch 5/10/15mm Pack of 3 Black

            Upgrade your bike’s steering precision with M Part Splined Alloy Headset Spacers. Crafted from machined aluminium, these spacers are 40% lighter than standard alloy options, reducing weight without compromising strength. Their unique splined internal design enhances rigidity for improved performance. Available in a pack...
            £6.96
            £8.99
            £6.96
            Save £2.03
          • M Part Part M:P Hsetspcr 1 5/10/15Black Spares & AccessoriesM Part Splined Alloy Headset Spacers 1 inch, 5 / 10 / 15 mm Black, Pack of 3 | Swinnerton Cycles

              M Part Splined Alloy Headset Spacers 1 Inch 5/10/15mm Black Pack of 3 Bike Parts

              Upgrade your bike’s steering precision with M Part Splined Alloy Headset Spacers. Crafted from machined aluminium, these spacers are 40% lighter than standard alloy versions, offering superior strength without added weight. Their splined internal design ensures enhanced rigidity for reliable performance. Available in a...
              £6.96
              £8.99
              £6.96
              Save £2.03
            • M Part Part M:P Hpspcr Carb 1.5 5Mm Spares & AccessoriesM Part Part M:P Hpspcr Carb 1.5 5Mm Spares & Accessories | Swinnerton Cycles

                M Part Hpspcr Carb 1.5 5mm Headset Spacer – Bike Spares & Accessories

                Upgrade your bike with the M Part Hpspcr Carb 1.5 5Mm headset spacer, crafted from lacquered carbon composite for a sleek, lightweight design. Its high-strength carbon fibre weave ensures durability while adding a sophisticated touch to your steering components. This spacer combines function and...
                £3.99
                £3.99
              • M Part Elite Bearing R429 Suits Hpt536 Spares & AccessoriesM Part Elite Headset R429 Bearing (37x49x7 36x45) IS49 36 degrees | Swinnerton Cycles

                  M Part Elite Headset R429 Bearing 37x49x7mm Quad Sealed Angular Contact for Cervelo SBC

                  Upgrade your bike’s steering performance with the M Part Elite Headset R429 Bearing. Crafted for precision, it features a quad sealed angular contact bearing combined with a double sealed housing to effectively resist harsh British weather conditions. Designed specifically for Elite headsets, this bearing...
                  £10.84
                  £13.99
                  £10.84
                  Save £3.15
                • M Part Elite Bearing R443 Suits Hpt510 Spares & AccessoriesM Part Elite Headset R443 Bearing (32.7x41.8x6 45x45) ZS44 | Swinnerton Cycles

                    M Part Elite Headset R443 Bearing 32.7x41.8x6mm Quad Sealed for Smooth Steering

                    Experience smooth and reliable steering with the M Part Elite Headset R443 Bearing. Designed with a quad sealed precision angular contact bearing and a double sealed housing, it effectively protects against harsh British weather conditions. This high-quality component ensures durability and optimal performance for...
                    £10.84
                    £13.99
                    £10.84
                    Save £3.15
                  • M Part Elite Headset R413 bearing, 40x52x7mm quad sealed angular contact bearing for bicycle components.M Part Elite Headset R413 bearing, 40x52x7mm, quad sealed angular contact bearing for bicycle components.

                      M Part Elite Headset R413 Bearing 40x52x7mm Quad Sealed Angular Contact ZS56

                      Upgrade your bike’s steering performance with the M Part Elite Headset R413 Bearing. Designed for Elite headsets, this component features a quad sealed precision angular contact bearing combined with a double sealed bearing housing, ensuring durability and protection against harsh British weather conditions. Its...
                      £10.84
                      £13.99
                      £10.84
                      Save £3.15
                    • M Part Elite Bearing R425 Suits Ec44 Ec49 Is52 Spares & AccessoriesM Part Elite Headset R425 Bearing (40x51.8x8 45x45) EC44 EC49 IS52 | Swinnerton Cycles

                        M Part Elite Headset R425 Bearing 40x51.8x8mm Angular Contact for EC44 EC49 IS52

                        The M Part Elite Headset R425 Bearing offers precise angular contact bearing technology combined with a double sealed housing, ensuring excellent protection against harsh weather conditions. Designed specifically for Elite headsets, it guarantees smooth steering and durability. With its exact dimensions (ID40mm x OD51.8mm...
                        £10.84
                        £13.99
                        £10.84
                        Save £3.15
                      • M Part Elite Bearing R424 Suits Is47 Spares & AccessoriesM Part Elite Headset R424 Bearing (34x47x7 45x45) IS47 | Swinnerton Cycles

                          M Part Elite Headset R424 Bearing 34x47x7mm Quad Sealed for Smooth Steering

                          Upgrade your Elite headset with the M Part Elite Headset R424 Bearing, designed for precision and durability. Its quad sealed angular contact bearing and double sealed housing protect against harsh weather, ensuring smooth steering performance in any condition. Perfectly sized for Elite headsets with...
                          £10.84
                          £13.99
                          £10.84
                          Save £3.15
                        • M Part Elite Bearing R418 Suits Is42 Spares & AccessoriesM Part Elite Headset R418 Bearing (30x41.8x8 45x45) IS42 | Swinnerton Cycles

                            M Part Elite Headset R418 Bearing 30x41.8x8mm Quad Sealed Angular Contact Bearing

                            The M Part Elite Headset R418 Bearing delivers exceptional precision and durability for your bike’s steering system. Featuring a quad sealed angular contact bearing and double sealed housing, it provides superior protection against harsh weather, ensuring smooth and reliable performance in all conditions. Specifically...
                            £10.84
                            £13.99
                            £10.84
                            Save £3.15
                          • M Part Headset M:P Bearing 1 Inch Spares & AccessoriesM Part Elite Headset R411 Bearing Pair (30x39x6.5 45x45) EC30 ZS42 | Swinnerton Cycles

                              M Part Elite Headset R411 Bearing Pair 30x39x6.5mm Quad Sealed Bearings EC30 ZS42

                              The M Part Elite Headset R411 Bearing Pair offers reliable performance with high-quality replacement bearings designed for Elite 1 inch headsets. Featuring quad sealed bearings, it ensures smooth steering and long-lasting durability. Precision dimensions (ID30mm x OD39mm x W6.5mm) and a 45x45 angle fit...
                              £15.49
                              £19.99
                              £15.49
                              Save £4.50
                            • M Part Headset M:P Bearing 1-1/8 Spares & AccessoriesM Part Elite Headset R408 Bearing Pair (30x41x6.5 45x45) ZS44, EC34, IS41 | Swinnerton Cycles

                                M Part Elite Headset R408 Bearing Pair 30x41x6.5mm for ZS44 EC34 IS41 Bikes

                                Upgrade your bike’s steering performance with the M Part Elite Headset R408 Bearing Pair. Crafted for durability and precision, these high-quality spare bearings ensure smooth, reliable movement in your Elite 1 1/8 inch headset. Designed with sealed quad bearings, they reduce friction and extend...
                                £15.49
                                £19.99
                                £15.49
                                Save £4.50
                              • M Part Headset M:P Expansion Ring 1-1/8 Spares & AccessoriesM Part Elite Headset Expansion Ring 1-1/8 inches | Swinnerton Cycles

                                  M Part Elite Headset Expansion Ring for 1-1/8 Inch Headsets Bike Part

                                  Upgrade your bike’s steering with the M Part Elite Headset Expansion Ring, crafted from lightweight alloy for durability and performance. Designed specifically for Elite 1-1/8 inch headsets, it ensures a perfect fit and smooth handling. This high-quality spare part enhances your bike’s functionality while...
                                  £5.43
                                  £6.99
                                  £5.43
                                  Save £1.56
                                • M Part Part M:P Carb Fork Expand 1In Spares & AccessoriesM Part Carbon Fork Expander 1 inch | Swinnerton Cycles

                                    M Part Carbon Fork Expander 1 Inch for Carbon Composite Steerer Tubes

                                    The M Part Carbon Fork Expander 1 inch is designed specifically for carbon composite steerer tubes, ensuring a secure and damage-free headset tensioning solution. Its innovative expander system fits seamlessly inside the steerer tube, preventing any scoring or marking, which preserves the integrity of...
                                    £15.49
                                    £19.99
                                    £15.49
                                    Save £4.50
                                  • M Part alloy star nut set for 1-1/8 inch bike steerer tubes, black anodised bike components for secure headset installation.M Part alloy star nut set for 1-1/8 inch bike steerer tubes, black anodised bike components for secure headset installation

                                      M Part Alloy Star Nut Set 1-1/8 inch Black Anodised for Bike Steerer Tubes

                                      The M Part Alloy Star Nut Set 1-1/8 inch Black is designed to provide a secure and reliable fit inside your bike's steerer tube. Crafted from durable alloy with a sleek black anodised finish and silver laser etching, it offers both strength and style....
                                      £5.43
                                      £6.99
                                      £5.43
                                      Save £1.56
                                    • M Part carbon fiber 1-1/8 inch 15mm headset spacer for bike steering upgrade, lightweight and durable bicycle component.M Part carbon fibre 1-1/8 inch 15mm headset spacer for bike steering upgrade, lightweight and durable bike component.

                                        M Part Carbon Fibre Headset Spacer 1-1/8 Inch 15mm for Bike Steering Upgrade

                                        Upgrade your bike's steering system with the M Part Carbon fibre headset spacer. Crafted from lacquered carbon composite, this 15 mm spacer offers outstanding strength while remaining ultra-lightweight. Its sleek carbon fibre weave not only enhances performance but also adds a stylish touch to...
                                        £6.88
                                        £7.99
                                        £6.88
                                        Save £1.11
                                      • M Part Part M:P Hpspcrcarb 1-1/8 10Mm Spares & AccessoriesM Part Carbon fibre headset spacer 1-1/8 inch, 10 mm | Swinnerton Cycles

                                          M Part Carbon Fibre Headset Spacer 1-1/8 Inch 10mm for Bike Steering Upgrade

                                          Upgrade your bike’s steering with the M Part Carbon Fibre Headset Spacer. Crafted from lacquered carbon composite, this 10 mm spacer combines lightweight design with impressive strength. Its sleek carbon fibre weave not only enhances durability but also adds a stylish touch to your...
                                          £6.19
                                          £7.99
                                          £6.19
                                          Save £1.80
                                        • M Part carbon fibre headset spacer, 1-1/8 inch, 5mm thick, for bike steering upgrade, lightweight and durable cycling component.M Part carbon fiber 1-1/8 inch 5mm headset spacer for bike steering upgrade, lightweight and durable bicycle component.

                                            M Part Carbon Fibre Headset Spacer 1-1/8 Inch 5mm for Bike Steering Upgrade

                                            Upgrade your bike's steering with the M Part Carbon fibre headset spacer 1-1/8 inch, 5 mm. Crafted from lacquered carbon composite, it combines durability with a stylish look. Its super lightweight design reduces weight without compromising strength, enhancing overall bike performance. The high-strength carbon...
                                            £6.19
                                            £7.99
                                            £6.19
                                            Save £1.80
                                          • M Part carbon fiber bike headset spacer 1-1/8 inch, 3mm thick, designed for precise steering components on bicycles.M Part carbon fiber 1-1/8 inch headset spacer with 3mm thickness for bike steering components, lightweight and durable.

                                              M Part Carbon Fibre Headset Spacer 1-1/8 Inch 3mm for Bike Steering Precision

                                              Enhance your bike's steering precision with the M Part Carbon fibre headset spacer. Crafted from lacquered carbon composite, it offers exceptional strength while remaining super lightweight. Its sleek carbon weave not only performs but also adds a stylish upgrade to your setup. Designed specifically...
                                              £6.19
                                              £7.99
                                              £6.19
                                              Save £1.80
                                            • M Part headset bearing 40x52x8mm with rubber seals, designed for smooth steering in bike components, 45/45° angle.M Part headset bearing 40x52x8mm with rubber seals, ideal for smooth steering in bicycle or motorcycle components.

                                                M Part Headset Bearing 40x52x8mm 45/45° with Rubber Seals for Smooth Steering

                                                The M Part Headset Bearing 40,0x52,0x8 45/45ø is engineered for precision and durability, ensuring smooth steering and reliable performance. Crafted with CrMo races and ball bearings hardened to HRC 61-66, it offers exceptional strength and longevity. The nylon retainer and full contact rubber LLU...
                                                £13.95
                                                £19.99
                                                £13.95
                                                Save £6.04
                                              • M Part bicycle headset bearing 40x52x7.5mm cartridge bearing with 45° angles, pre-lubricated for smooth steering components.M Part bicycle headset bearing 40x52x7.5mm cartridge bearing with 45°/45° angles, pre-lubricated for smooth steering.

                                                  M Part Bicycle Headset Bearing 40x52x7.5mm 45°/45° Cartridge Bearing Pre-Lubricated

                                                  The M Part Headset Bearing 40,0x52,0x7,5 45ø/45ø offers exceptional performance and durability for your bicycle's steering system. Designed with high-quality materials such as CrMo races and ball bearings, this bearing ensures smooth and reliable handling. Its Nylon retainer and full contact rubber seals provide...
                                                  £13.95
                                                  £19.99
                                                  £13.95
                                                  Save £6.04
                                                • M Part bicycle headset bearing, 40x52x7mm, 45°/45° angle, ABEC-3 precision, components for bike steering systemsM Part bicycle headset bearing 40x52x7mm with 45°/45° angle and ABEC-3 precision, shown in close-up image

                                                    M Part Bicycle Headset Bearing 40x52x7mm 45°/45° with ABEC-3 Precision

                                                    The M Part Headset Bearing 40,0x52,0x7 45ø/45ø is engineered to deliver precise steering performance for a wide range of bicycles. Crafted with high-quality CrMo races and ball bearings, this cartridge bearing ensures durability and smooth operation. Its nylon retainer and full-contact rubber seals protect...
                                                    £13.95
                                                    £19.99
                                                    £13.95
                                                    Save £6.04
                                                  • M Part bicycle headset bearing 40x52x6.5mm cartridge bearing with 36°/45° angles, used for bike steering components.M Part bicycle headset bearing 40x52x6.5mm cartridge bearing with 36°/45° angles, used in bike components.

                                                      M Part Bicycle Headset Bearing 40x52x6.5mm 36°/45° Cartridge Bearing

                                                      The M Part Headset Bearing 40,0x52,0x6,5 36ø/45ø offers exceptional durability and precision for your bicycle's steering system. Engineered with CrMo races and ball bearings, along with ABEC-3 tolerance, it ensures smooth, reliable performance. Its nylon retainer and full contact rubber LLU seals protect against...
                                                      £13.95
                                                      £19.99
                                                      £13.95
                                                      Save £6.04
                                                    • M Part bicycle headset bearing 40x51.9x8mm sealed steering component with 45°/45° angles, used in bike steering systems.M Part bicycle headset bearing 40x51.9x8mm sealed steering component with 45°/45° angles, for smooth bike steering.

                                                        M Part Bicycle Headset Bearing 40x51.9x8mm 45°/45° Sealed Steering Component

                                                        The M Part Headset Bearing 40,0x51,9x8 45ø/45ø is engineered for precise steering performance and durability. Designed to fit virtually all bicycle headsets, it ensures smooth operation with high-quality materials like CrMo races and ball bearings. The nylon retainer and full-contact rubber seals protect against...
                                                        £14.34
                                                        £21.99
                                                        £14.34
                                                        Save £7.65
                                                      • M Part bicycle headset bearing 40x51.8x8mm, 36°/45° steering component with metal construction for smooth bike steering.M Part bicycle headset bearing 40x51.8x8mm with 36°/45° angle, steering component for bike maintenance.

                                                          M Part Headset Bearing 40x51.8x8mm 36°/45° Bicycle Steering Component

                                                          The M Part Headset Bearing 40,0x51,8x8 36ø/45ø is engineered for durability and precision, ideal for maintaining smooth steering performance. Crafted with CrMo races and ball bearings featuring a nylon retainer, this component ensures reliable operation under diverse conditions. Its ABEC-3 tolerance and full-contact rubber...
                                                          £15.00
                                                          £22.99
                                                          £15.00
                                                          Save £7.99
                                                        • M Part bicycle headset bearing 40x51.8x7.5mm sealed component with 36ø/45ø for durable bike steering partsM Part bicycle headset bearing 40x51.8x7.5mm sealed durable components for smooth steering and bike maintenance

                                                            M Part Bicycle Headset Bearing 40x51.8x7.5mm 36ø/45ø Sealed Durable

                                                            The M Part Headset Bearing 40,0x51,8x7,5 36ø/45ø is designed for reliable performance in a variety of bicycle headsets. Crafted with precision, it features CrMo races and ball bearings with a nylon retainer, ensuring durability and smooth steering. Its ABEC-3 tolerance guarantees consistent, high-quality operation....
                                                            £14.66
                                                            £20.99
                                                            £14.66
                                                            Save £6.33
                                                          • M Part bicycle headset bearing, 40x51x6.5mm, pre-greased cartridge, for bike components, with 36ø/36ø size.M Part bicycle headset bearing, 40x51x6.5mm, pre-greased cartridge, for bike components, with visible bearing and cartridge details.

                                                              M Part Bicycle Headset Bearing 40x51x6.5mm 36ø/36ø Pre-Greased Cartridge

                                                              The M Part Headset Bearing 40,0x51,0x6,5 36ø/36ø offers reliable performance for your bicycle's steering system. Designed with high-quality materials such as CrMo races and HRC 61-66 ball bearings, this cartridge bearing ensures smooth rotation and durability. Its nylon retainer and full contact rubber LLU...
                                                              £14.66
                                                              £20.99
                                                              £14.66
                                                              Save £6.33
                                                            • M Part bicycle headset bearing 37x49x7mm sealed cartridge with 45°/45° angle for smooth steering and reliable performance.M Part bicycle headset bearing, 37x49x7mm sealed cartridge with 45°/45° angle, for smooth steering and component durability.

                                                                M Part Bicycle Headset Bearing 37x49x7mm 45°/45° Cartridge Sealed Bearing

                                                                Experience smooth and precise steering with the M Part Headset Bearing 37,0x49,0x7 45ø/45ø. Crafted with high-quality materials like CrMo races and ball bearings, it ensures durability and reliable performance. The nylon retainer and full-contact rubber seals protect against dirt and moisture, extending the lifespan...
                                                                £12.56
                                                                £17.99
                                                                £12.56
                                                                Save £5.43
                                                              Recently Viewed Products

                                                              Explore our M Part collection at Swinnerton Cycles. M Part produces a comprehensive range of quality replacement components and accessories — from cables and brake pads to grips and saddles — offering reliable performance and broad compatibility for everyday bike maintenance. Browse the full M Part range and explore our wider Bike Maintenance and Cables collections.

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