M Part

M Part is a trusted cycling brand specialising in high-quality components, spares and accessories designed to keep bikes running smoothly. With a wide product range that includes headsets, seat clamps, stems, mudguards and small service parts, M Part offers reliable solutions for cyclists who want performance, value and long-lasting durability....

M Part is a trusted cycling brand specialising in high-quality components, spares and accessories designed to keep bikes running smoothly. With a wide product range that includes headsets, seat clamps, stems, mudguards and small service parts, M Part offers reliable solutions for cyclists who want performance, value and long-lasting durability. Whether you’re upgrading, replacing worn components, or fine-tuning your setup, M Part delivers practical products that suit road cyclists, mountain bikers, gravel riders and commuters alike.

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  • M Part Spare M:P Fd Clamp 34.9 Spares & AccessoriesM Part Front derailleur clamp for a braze on front mech 34.9

      M Part Front derailleur clamp for a braze on front mech 34.9

      High quality band on clamp so you can use a braze on front mech on any frame without a braze on mount Available in 3 sizes for all down tube diameters Ideal accessory for all workshops Made from long lasting aluminium and anodised black...
      £11.99
      £10.55
      £11.99
      Save £-1.44
    • M Part Spare M:P Fd Clamp 28.6 Spares & AccessoriesM Part Front derailleur clamp for a braze on front mech 28.6

        M Part Front derailleur clamp for a braze on front mech 28.6

        High quality band on clamp so you can use a braze on front mech on any frame without a braze on mount Available in 3 sizes for all down tube diameters Ideal accessory for all workshops Made from long lasting aluminium and anodised black...
        £11.99
        £10.55
        £11.99
        Save £-1.44
      • M Part Spare M:P Cassette Spacers X2 Spares & AccessoriesM Part Cassette Spacers x 2

          M Part Cassette Spacers x 2

          High quality Cr-Mo steel cassette spacers
          £4.94
          £5.99
          £4.94
          Save £1.05
        • M Part Stem M:P Adj Stem/Quill 4 Bolt StemM Part Adjustable 4-bolt quill stem 1-1/8 inch

            M Part Adjustable 4-bolt quill stem 1-1/8 inch

            Secure adjustable 4-bolt quill stem Made from high quality 6061 alloy Heat treated for extra strength Satin black finish for high quality look and feel 115mm in length Suits 1 1/8 threaded steerer and 31.8mm bar bore
            £29.99
            £26.39
            £29.99
            Save £-3.60
          • M Part Adjustable A-Head Stem 1 1/8 StemM Part Adjustable A-head 4 bolt stem 25.4

              M Part Adjustable A-head 4 bolt stem 25.4

              Secure adjustable 4-bolt A-head stem Made from high quality 6061 alloy Heat treated for extra strength 110mm centre to centre when flat 25.4mm clamp size
              £29.99
              £26.39
              £29.99
              Save £-3.60
            • M Part 1 Inch Star Nuts 22.2 Mm 10 Pack Refill Spares & AccessoriesM Part 1 inch star nuts 22.2 mm - 10 pack refill

                M Part 1 inch star nuts 22.2 mm - 10 pack refill

                1 inch Star nuts for 22.2 mm steerer tubes Workshop pack of 10
                £12.38
                £15.00
                £12.38
                Save £2.62
              • M Part 1-1/8 Inch Star Nuts 25.4 X 10 Pack Refill Spares & AccessoriesM Part 1-1/8 inch Star Nuts 25.4 x 10 Pack Refill

                  M Part 1-1/8 inch Star Nuts 25.4 x 10 Pack Refill

                  1-1/8 inch Star nuts for 25.4mm steerer tubes Workshop pack of 10
                  £12.38
                  £15.00
                  £12.38
                  Save £2.62
                • M Part Elite Headset Lower Is42/30 Spares & AccessoriesM Part Elite Headset Lower IS42/30

                    M Part Elite Headset Lower IS42/30

                    This top of the range headset comes with a 3 year manufacturing warranty Quad sealed precision angular contact bearings coupled with double sealed bearing housing, keeps the British climate at bay Utilises flush seal technology to further protect the longevity of the bearings Full...
                    £29.68
                    £34.99
                    £29.68
                    Save £5.31
                  • 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

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

                      Machined aluminium headset spacers Super lightweight, 40% lighter than standard alloy spacers Splined internal construction gives additional rigidity and strength Another way to save a few grams! Pack of 5, 10, and 15 mm
                      £8.99
                      £7.91
                      £8.99
                      Save £-1.08
                    • 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

                        M Part Splined Alloy Headset Spacers 1 inch, 5 / 10 / 15 mm Black, Pack of 3

                        Machined aluminium headset spacers Super lightweight, 40% lighter than standard alloy spacers Splined internal construction gives additional rigidity and strength Another way to save a few grams! Pack of 5, 10, and 15 mm
                        £7.42
                        £8.99
                        £7.42
                        Save £1.57
                      • M Part Part M:P Hpspcr Carb 1.5 5Mm Spares & AccessoriesM Part Part M:P Hpspcr Carb 1.5 5Mm Spares & Accessories

                          M Part Part M:P Hpspcr Carb 1.5 5Mm Spares & Accessories

                          Lightweight carbon fibre headset spacerLacquered carbon composite constructionSuper lightweightHigh strength carbon fibre weave is functional and looks greatAdd a touch of class to your bike with this quality upgrade
                          £3.29
                          £3.99
                          £3.29
                          Save £0.70
                        • M Part Elite Bearing R429 Suits Hpt536 Spares & AccessoriesM Part Elite Headset R429 Bearing (37x49x7 36x45) IS49 36 degrees

                            M Part Elite Headset R429 Bearing (37x49x7 36x45) IS49 36 degrees

                            Quad sealed precision angular contact bearing coupled with double sealed bearing housing, keeps the British climate at bay For Elite headsets To check size measure inside diameter x outside diameter x width ID37mm x OD49mm x W7mm 36x45 angle Compatible with Cervelo / SBC...
                            £11.87
                            £13.99
                            £11.87
                            Save £2.12
                          • M Part Elite Bearing R443 Suits Hpt510 Spares & AccessoriesM Part Elite Headset R443 Bearing (32.7x41.8x6 45x45) ZS44

                              M Part Elite Headset R443 Bearing (32.7x41.8x6 45x45) ZS44

                              Quad sealed precision angular contact bearing coupled with double sealed bearing housing, keeps the British climate at bay For Elite headsets To check size measure inside diameter x outside diameter x width ID32.7mm x OD41.8mm x W6mm 45x45 angle Compatible with Giant OD2
                              £11.87
                              £13.99
                              £11.87
                              Save £2.12
                            • M Part Elite Bearing R413 Suits Zs56 Spares & AccessoriesM Part Elite Headset R413 Bearing (40x52x7 45x45) ZS56

                                M Part Elite Headset R413 Bearing (40x52x7 45x45) ZS56

                                Quad sealed precision angular contact bearing coupled with double sealed bearing housing, keeps the British climate at bay For Elite headsets To check size measure inside diameter x outside diameter x width ID40mm x OD52mm x W7mm 45x45 angle
                                £11.87
                                £13.99
                                £11.87
                                Save £2.12
                              • M Part Elite Bearing R425 Suits Ec44 Ec49 Is52 Spares & AccessoriesM Part Elite Headset R425 Bearing (40x51.8x8 45x45) EC44 EC49 IS52

                                  M Part Elite Headset R425 Bearing (40x51.8x8 45x45) EC44 EC49 IS52

                                  Quad sealed precision angular contact bearing coupled with double sealed bearing housing, keeps the British climate at bay For Elite headsets To check size measure inside diameter x outside diameter x width ID40mm x OD51.8mm x W6mm 45x45 angle
                                  £11.87
                                  £13.99
                                  £11.87
                                  Save £2.12
                                • M Part Elite Bearing R424 Suits Is47 Spares & AccessoriesM Part Elite Headset R424 Bearing (34x47x7 45x45) IS47

                                    M Part Elite Headset R424 Bearing (34x47x7 45x45) IS47

                                    Quad sealed precision angular contact bearing coupled with double sealed bearing housing, keeps the British climate at bay For Elite headsets To check size measure inside diameter x outside diameter x width ID34mm x OD47mm x W7mm 45x45 angle
                                    £11.87
                                    £13.99
                                    £11.87
                                    Save £2.12
                                  • M Part Elite Bearing R418 Suits Is42 Spares & AccessoriesM Part Elite Headset R418 Bearing (30x41.8x8 45x45) IS42

                                      M Part Elite Headset R418 Bearing (30x41.8x8 45x45) IS42

                                      Quad sealed precision angular contact bearing coupled with double sealed bearing housing, keeps the British climate at bay For Elite headsets To check size measure inside diameter x outside diameter x width ID30mm x OD41.8mm x W8mm 45x45 angle
                                      £11.87
                                      £13.99
                                      £11.87
                                      Save £2.12
                                    • M Part Headset M:P Bearing 1 Inch Spares & AccessoriesM Part Elite Headset R411 Bearing Pair (30x39x6.5 45x45) EC30 ZS42

                                        M Part Elite Headset R411 Bearing Pair (30x39x6.5 45x45) EC30 ZS42

                                        High quality spare Replacement quad sealed bearings For Elite 1 inch headsets To check size measure inside diameter x outside diameter x width ID30mm x OD39mm x W6.5mm 45x45 angle
                                        £16.96
                                        £19.99
                                        £16.96
                                        Save £3.03
                                      • M Part Headset M:P Bearing 1-1/8 Spares & AccessoriesM Part Elite Headset R408 Bearing Pair (30x41x6.5 45x45) ZS44, EC34, IS41

                                          M Part Elite Headset R408 Bearing Pair (30x41x6.5 45x45) ZS44, EC34, IS41

                                          High quality spare Replacement quad sealed bearings For Elite 1 1/8 inch headsets To check size measure inside diameter x outside diameter x width ID30mm x OD41mm x W6.5mm 45x45 angle
                                          £16.96
                                          £19.99
                                          £16.96
                                          Save £3.03
                                        • M Part Headset M:P Expansion Ring 1-1/8 Spares & AccessoriesM Part Elite Headset Expansion Ring 1-1/8 inches

                                            M Part Elite Headset Expansion Ring 1-1/8 inches

                                            High quality spare Lightweight alloy construction For Elite 1 1/8 inch headsets
                                            £5.93
                                            £6.99
                                            £5.93
                                            Save £1.06
                                          • M Part Part M:P Carbfork Expand 1-1/8 Spares & AccessoriesM Part Carbon Fork Expander 1-1/8 inch

                                              M Part Carbon Fork Expander 1-1/8 inch

                                              Headset tensioning top cap expander system for use in carbon composite steerer tubes Expands inside the steerer tube Causes no scoring or marking inside the steerer Recommended for carbon composite steerer tubes Anodised black finish with a lacquered carbon fibre top cap Great looking...
                                              £19.99
                                              £17.59
                                              £19.99
                                              Save £-2.40
                                            • M Part Part M:P Carb Fork Expand 1In Spares & AccessoriesM Part Carbon Fork Expander 1 inch

                                                M Part Carbon Fork Expander 1 inch

                                                Headset tensioning top cap expander system for use in carbon composite steerer tubes Expands inside the steerer tube Causes no scoring or marking inside the steerer Recommended for carbon composite steerer tubes Anodised black finish with a lacquered carbon fibre top cap Great looking...
                                                £19.99
                                                £17.59
                                                £19.99
                                                Save £-2.40
                                              • M Part Part M:P Starnutsetalloy 1-1/8 Spares & AccessoriesM Part Alloy Star Nut Set 1-1/8 inch Black

                                                  M Part Alloy Star Nut Set 1-1/8 inch Black

                                                  Star nut which grips firmly inside the steerer tube Alloy top cap, with countersunk stainless steel bolt The countersunk cap and bolt design minimises the risk of it loosening when in use and looks great For 28.6 mm (1-1/8 inch) external diameter steerer tubes...
                                                  £5.93
                                                  £6.99
                                                  £5.93
                                                  Save £1.06
                                                • M Part Part M:P Hpspcrcarb 1-1/8 15Mm Spares & AccessoriesM Part Carbon fibre headset spacer 1-1/8 inch, 15 mm

                                                    M Part Carbon fibre headset spacer 1-1/8 inch, 15 mm

                                                    Lightweight carbon fibre headset spacer Lacquered carbon composite construction Super lightweight High strength carbon fibre weave is functional and looks great Add a touch of class to your bike with this quality upgrade
                                                    £1.64
                                                    £7.99
                                                    £1.64
                                                    Save £6.35
                                                  • M Part Part M:P Hpspcrcarb 1-1/8 10Mm Spares & AccessoriesM Part Carbon fibre headset spacer 1-1/8 inch, 10 mm

                                                      M Part Carbon fibre headset spacer 1-1/8 inch, 10 mm

                                                      Lightweight carbon fibre headset spacer Lacquered carbon composite construction Super lightweight High strength carbon fibre weave is functional and looks great Add a touch of class to your bike with this quality upgrade
                                                      £7.99
                                                      £7.03
                                                      £7.99
                                                      Save £-0.96
                                                    • M Part Part M:P Hpspcr Carb 1-1/8 5Mm Spares & AccessoriesM Part Carbon fibre headset spacer 1-1/8 inch, 5 mm

                                                        M Part Carbon fibre headset spacer 1-1/8 inch, 5 mm

                                                        Lightweight carbon fibre headset spacer Lacquered carbon composite construction Super lightweight High strength carbon fibre weave is functional and looks great Add a touch of class to your bike with this quality upgrade
                                                        £7.99
                                                        £7.03
                                                        £7.99
                                                        Save £-0.96
                                                      • M Part Part M:P Hpspcr Carb 1-1/8 3Mm Spares & AccessoriesM Part Carbon fibre headset spacer 1-1/8 inch, 3 mm

                                                          M Part Carbon fibre headset spacer 1-1/8 inch, 3 mm

                                                          Lightweight carbon fibre headset spacer Lacquered carbon composite construction Super lightweight High strength carbon fibre weave is functional and looks great Add a touch of class to your bike with this quality upgrade
                                                          £7.99
                                                          £7.03
                                                          £7.99
                                                          Save £-0.96
                                                        • M Part Headset Bearing 40,0X52,0X8 45/45 ¸ Spares & AccessoriesM Part Headset Bearing 40,0X52,0X8 45/45 ¸ Spares & Accessories

                                                            M Part Headset Bearing 40,0x52,0x8 45/45ø

                                                            Bicycle specific cartridge bearing, covering virtually all headsets in the market Specification and quality matches original bearings selected by the engineers at the world's leading bike brands Nylon retainer, CrMo races, CrMo (HRC 61-66) ball bearings Tolerance ABEC-3 Rubber LLU (full contact) Seals Multemp...
                                                            £19.99
                                                            £17.59
                                                            £19.99
                                                            Save £-2.40
                                                          • M Part Headset Bearing 40,0X52,0X7,5 45 ¸/45 ¸ Spares & AccessoriesM Part Headset Bearing 40,0X52,0X7,5 45 ¸/45 ¸ Spares & Accessories

                                                              M Part Headset Bearing 40,0x52,0x7,5 45ø/45ø

                                                              Bicycle specific cartridge bearing, covering virtually all headsets in the market Specification and quality matches original bearings selected by the engineers at the world's leading bike brands Nylon retainer, CrMo races, CrMo (HRC 61-66) ball bearings Tolerance ABEC-3 Rubber LLU (full contact) Seals Multemp...
                                                              £19.99
                                                              £17.59
                                                              £19.99
                                                              Save £-2.40
                                                            • M Part Headset Bearing 40,0X52,0X7 45 ¸/45 ¸ Spares & AccessoriesM Part Headset Bearing 40,0X52,0X7 45 ¸/45 ¸ Spares & Accessories

                                                                M Part Headset Bearing 40,0x52,0x7 45ø/45ø

                                                                Bicycle specific cartridge bearing, covering virtually all headsets in the market Specification and quality matches original bearings selected by the engineers at the world's leading bike brands Nylon retainer, CrMo races, CrMo (HRC 61-66) ball bearings Tolerance ABEC-3 Rubber LLU (full contact) Seals Multemp...
                                                                £19.99
                                                                £17.59
                                                                £19.99
                                                                Save £-2.40
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