MTB Cranks

Your mountain bike’s crankset is where your power meets the pedals. It’s a fundamental part of your drivetrain, converting each pedal stroke into forward motion. At Swinnerton Cycles, our MTB Cranks collection is dedicated to high‑quality cranksets built for durability, precision and performance on trails, technical terrain, steep climbs and...

Your mountain bike’s crankset is where your power meets the pedals. It’s a fundamental part of your drivetrain, converting each pedal stroke into forward motion. At Swinnerton Cycles, our MTB Cranks collection is dedicated to high‑quality cranksets built for durability, precision and performance on trails, technical terrain, steep climbs and fast descents. Whether you're chasing lightness, stiffness, or the best gear range, we have something to suit your ride style and terrain.

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  • Shimano Cranks - FC-M371 chainsetShimano Cranks - FC-M371 chainset

    Shimano Cranks - FC-M371 chainset - Black

    Square taper 122.5 mm bottom bracket fitment Pin position with better clearance toward chaincase 48-36-26T With chain guard Black
    from £50.39
    £59.99
    from £50.39
    Save £9.60
    • Black
  • Shimano Cranks - FC-M361 chainset, square taperShimano Cranks - FC-M361 chainset, square taper

    Shimano Cranks - FC-M361 chainset, square taper - Black

    Entry level 7 / 8-speed chainset offering slick hyperdrive shifting performance for off road enthusiasts 7 / 8-speed compatible steel chainrings For use square taper bottom brackets
    £47.84
    £54.99
    £47.84
    Save £7.15
    • Black
  • Shimano Cranks - Fc-M311 Altus Square Taper Chainset, 48 / 38 / 28TShimano Cranks - Fc-M311 Altus Square Taper Chainset, 48 / 38 / 28T

    Shimano Cranks - Fc-M311 Altus Square Taper Chainset, 48 / 38 / 28T - Black

    Entry level 7/8-speed chainset offering slick hyperdrive shifting performance for off road enthusiasts Hyperdrive SG-X chainrings for fast and smooth gear shifts 7/8-speed compatible steel chainrings For use with 123 mm square taper bottom brackets
    from £37.79
    £44.99
    from £37.79
    Save £7.20
    • Black
  • Shimano Cranks - FCEM900 H/techShimano Cranks - FCEM900 H/tech

      Shimano Cranks - FCEM900 H/tech - Black

      Replacement crank arm for E-bikes various lengths available 160mm, 165mm, 170mm, 175mm HOLLOWTECH II crankarm technology providing the best balance between stiffness, strength, weight and rotating performance This product is not backwards compatible with DU-E8000 / DU-E7000 & DU-E6100 Drive Units This is a...
      from £117.59
      £139.99
      from £117.59
      Save £22.40
      • Black
    • Shimano Cranks - FCEM600 W/O c/guardShimano Cranks - FCEM600 W/O c/guard

        Shimano Cranks - FCEM600 W/O c/guard - Black

        Replacement crank arm for E-bikes various lengths available 160mm, 165mm, 170mm, 175mm This product is not backwards compatible with DU-E8000 / DU-E7000 & DU-E6100 Drive Units This is a genuine Shimano replacement part
        £50.39
        £59.99
        £50.39
        Save £9.60
        • Black
      • Praxis Works Cranks - eCrank Set, Bosch/Yamaha, CarbonPraxis Works Cranks - eCrank Set, Bosch/Yamaha, Carbon

          Praxis Works Cranks - eCrank Set, Bosch/Yamaha, Carbon - Carbon

          Alloy €¢ LEFT & RIGHT SET | Alloy eCranks | Cold Forged Aluminium. €¢ Newly added HD Heavy Duty version for aggressive MTN riders. €¢ AL main crank bolt with self-extractor | M24 Bolt for ISIS eCranks. €¢ 8mm Allen wrench for install/removal of...
          £269.70
          £310.00
          £269.70
          Save £40.30
          • Carbon
        • Shimano Cranks - Fc-M825 Saint Crank Arms And 83 mm Bottom BracketShimano Cranks - Fc-M825 Saint Crank Arms And 83 mm Bottom Bracket

          Shimano Cranks - Fc-M825 Saint Crank Arms And 83 mm Bottom Bracket - Black

          Gravity riding has progressed with bikes being lighter and trails getting faster. Saint has evolved with this providing a stiff, strong and durable HollowTech II crank set reinforced in all the ways that most extreme chainsets are not These industry leading HollowTech II cold...
          £205.79
          £244.99
          £205.79
          Save £39.20
          • Black
        • Shimano Cranks - Fc-M820 Saint Crank Arms And 68 And 73 mm Bottom BracketShimano Cranks - Fc-M820 Saint Crank Arms And 68 And 73 mm Bottom Bracket

          Shimano Cranks - Fc-M820 Saint Crank Arms And 68 And 73 mm Bottom Bracket - Black

          Gravity riding has progressed with bikes being lighter and trails getting faster. Saint has evolved with this providing a stiff, strong and durable HollowTech II crank set reinforced in all the ways that most extreme chainsets are not These industry leading HollowTech II cold...
          £201.59
          £239.99
          £201.59
          Save £38.40
          • Black
        • Race Face Cranks - Next SL 136mm Cranks (Arms Only)Race Face Cranks - Next SL 136mm Cranks (Arms Only)

            Race Face Cranks - Next SL 136mm Cranks (Arms Only) - Black

            The lightest gets lighter with major improvements in durability and carbon consistency. Built off the proven Next R crank arm shape and spindle insert, the new Next SL jumps back in the ring to be your featherweight champion. Made in Canada with American sourced...
            £373.23
            £429.00
            £373.23
            Save £55.77
            • Black
          • Race Face Cranks - Next R 136mm Cranks (Arms Only)Race Face Cranks - Next R 136mm Cranks (Arms Only)

              Race Face Cranks - Next R 136mm Cranks (Arms Only) - Orange

              Against the clock or against yourself, R is for rally. We get it. If we say Enduro one more time you're going to burn this sheet. But however you want to brand it, pedal-heavy outings with aggressive all-mountain shredding can be very demanding on...
              £347.13
              £399.00
              £347.13
              Save £51.87
              • Orange
              • Red
              • Purple
              • Blue
            • Race Face Cranks - Era-E Cranks (Arms Only)Race Face Cranks - Era-E Cranks (Arms Only)

                Race Face Cranks - Era-E Cranks (Arms Only) - Black

                Resonate with your ride Optimised for the industry-leading Bosch Gen4 motor as well as the light-and-quiet TQ HPR50 drive unit (found on the 2023 Trek Fuel EXe), the Era eMTB crankset saves grams while staying scuff-free and looking great. It's also available in a...
                £347.13
                £399.00
                £347.13
                Save £51.87
                • Black
              • Race Face Cranks - Era 136mm Cranks (Arms Only)Race Face Cranks - Era 136mm Cranks (Arms Only)

                  Race Face Cranks - Era 136mm Cranks (Arms Only) - Black

                  Crank Different The new flagship crankset from Race Face is here. Era is battle-tested on the world's toughest enduro courses and weighs in at just 483 grams. With a slick stainless scuff plate and more colours than you can shake a stick at, this...
                  £390.63
                  £449.00
                  £390.63
                  Save £58.37
                  • Black
                  • Orange
                  • Red
                  • Stealth
                • Race Face Cranks - Affect R 137mm Cranks (Arms Only)Race Face Cranks - Affect R 137mm Cranks (Arms Only)

                    Race Face Cranks - Affect R 137mm Cranks (Arms Only) - Black

                    Designed in Canada, the rally-rated †ffect R crankset brings enduro rated strength but keeps the weight in the XC range. Its forged 7050 AL construction optimizes stiffness without added weight. The †ffect R features our versatile CINCH System for plenty of spider options as...
                    £112.23
                    £129.00
                    £112.23
                    Save £16.77
                    • Black
                  • Praxis Works Cranks - eCrank Set, Specialized M30 Road, CarbonPraxis Works Cranks - eCrank Set, Specialized M30 Road, Carbon

                      Praxis Works Cranks - eCrank Set, Specialized M30 Road, Carbon - Black

                      Carbon €¢ Left & Right Carbon Fibre Arms. 170mm, 172.5mm and 175mm lengths. €¢ Road use (For Creo SL family of bikes). €¢ For Specialized eBikes with "SL 1.1" motor using Praxis M30 spindle/spline. €¢ Alloy main crank bolt with self-extractor | M30 Bolt....
                      £269.70
                      £310.00
                      £269.70
                      Save £40.30
                      • Black
                    • Praxis Works Cranks - eCrank Set, Specialized M30 MTB, CarbonPraxis Works Cranks - eCrank Set, Specialized M30 MTB, Carbon

                        Praxis Works Cranks - eCrank Set, Specialized M30 MTB, Carbon - Black

                        Carbon €¢ Left & Right Carbon Fibre Arms. 160, 165 and 170mm lengths. €¢ MTB use (For Levo SL family of bikes). €¢ For Specialized eBikes with "SL 1.1" motor using Praxis M30 spindle/spline. €¢ Alloy main crank bolt with self-extractor | M30 Bolt....
                        £269.70
                        £310.00
                        £269.70
                        Save £40.30
                        • Black
                      • Praxis Works Cranks - eCrank Set, Specialized, CarbonPraxis Works Cranks - eCrank Set, Specialized, Carbon

                          Praxis Works Cranks - eCrank Set, Specialized, Carbon - Carbon

                          Carbon €¢ Left & Right Carbon Fibre Arms. 160, 165 and 170mm lengths. MTB use. €¢ For Levo, Kenevo, Vado, Como eBikes with the steel ISIS spindle/motor (not SL family). €¢ Weight 375g+/-. €¢ M30 Alloy main crank bolt with self-extractor | 8mm Allen...
                          £269.70
                          £310.00
                          £269.70
                          Save £40.30
                          • Carbon
                        • Praxis Works Cranks - eCrank Set, ISIS Fit, AlloyPraxis Works Cranks - eCrank Set, ISIS Fit, Alloy

                            Praxis Works Cranks - eCrank Set, ISIS Fit, Alloy - Black

                            Alloy €¢ LEFT & RIGHT SET | Alloy eCranks | Cold Forged Aluminium. €¢ Newly added HD Heavy Duty version for aggressive MTN riders. €¢ AL main crank bolt with self-extractor | M24 Bolt for ISIS eCranks. €¢ 8mm Allen wrench for install/removal of...
                            £73.95
                            £85.00
                            £73.95
                            Save £11.05
                            • Black
                          • Praxis Works Cranks - eCrank Set, Brose/Fazua, CarbonPraxis Works Cranks - eCrank Set, Brose/Fazua, Carbon

                              Praxis Works Cranks - eCrank Set, Brose/Fazua, Carbon - Black

                              Carbon €¢ L & R Carbon Arms | 165/170 | MTN or Road use. €¢ For installation on e-bikes that use a stock BROSE or FAZUA motor. €¢ Alloy main crank bolt with self-extractor | 8mm Allen for install/removal | 50Nm torque. €¢ 375g+/-...
                              £269.70
                              £310.00
                              £269.70
                              Save £40.30
                              • Black
                            • Praxis Works Cranks - CS MTB, Cadet G2, Arms OnlyPraxis Works Cranks - CS MTB, Cadet G2, Arms Only

                                Praxis Works Cranks - CS MTB, Cadet G2, Arms Only - Black

                                Cadet M30 Perfect for trail riding and cross country, the Cadet ushers in a new level of performance aimed at value-driven riders. With stiff and light solid forged-aluminium arms, a stout M30 alloy spindle and a direct mount ring interface, the new Cadet M30...
                                £152.25
                                £175.00
                                £152.25
                                Save £22.75
                                • Black
                              • Praxis Works Cranks - eCrank Set, Specialized M30 MTB, AlloyPraxis Works Cranks - eCrank Set, Specialized M30 MTB, Alloy

                                  Praxis Works Cranks - eCrank Set, Specialized M30 MTB, Alloy - Black

                                  Working closely with Specialized, Praxis have created e-crank arms for many of their e-bikes. Simply pull off the stock aluminium crankarms and bolt on these carbon cranks for a lighter, higher performance setup on your Specialized e-bike. eCranks for the SL family of eBikes...
                                  £82.65
                                  £95.00
                                  £82.65
                                  Save £12.35
                                  • Black
                                • Praxis Works Cranks - CS, Zayante Carbon ARMSET ONLYPraxis Works Cranks - CS, Zayante Carbon ARMSET ONLY

                                    Praxis Works Cranks - CS, Zayante Carbon ARMSET ONLY - Black

                                    New armset-only optionThe Northern California Coast and Santa Cruz Mountains are steeped in road riding history. To honour it, we named our new top-level crank Zayante, after the fabled redwood-covered climb so-named ¢ ‚¬ €œ secret training ground for many local pros. The Zayante...
                                    £195.75
                                    £225.00
                                    £195.75
                                    Save £29.25
                                    • Black
                                  • Praxis Works Cranks - CS MTB, Girder Carbon G2, Arms OnlyPraxis Works Cranks - CS MTB, Girder Carbon G2, Arms Only

                                      Praxis Works Cranks - CS MTB, Girder Carbon G2, Arms Only - Black

                                      New Shape, New Generation, New Beginning. With new updated carbon shape and spacing, the new Gen2 Girder Carbon aims to be the new trail master. Trail riders that expect top level performance, finish and fitment will not be let down. Lightweight carbon arms, rigid...
                                      £269.70
                                      £310.00
                                      £269.70
                                      Save £40.30
                                      • Black
                                    • Praxis Works Cranks - CS, Lyft G2Praxis Works Cranks - CS, Lyft G2

                                        Praxis Works Cranks - CS, Lyft G2 - Black

                                        Created as the ultimate mountain Trail/XC crank, the carbon LYFT sits atop as the king. With its super light carbon arms, M30-THRU alloy spindle with alloy preload adjuster the LYFT is our premier Trail/XC crank for those that want the very best.
                                        £365.40
                                        £420.00
                                        £365.40
                                        Save £54.60
                                        • Black
                                      • FSA Cranks - Ebike Chainset CK-752 Shimano EP800 24.0mm Black

                                          FSA Ebike Chainset CK-752 Shimano EP800 24.0mm Black (170mm) - Black

                                          Forged AL6061/T6 crank arms. Include axle bolt ML598. Length: 165, 170, 175mm. Bead blasted anodized black, laser graphics. Weight: 536g (pair). QFactor is the distance between the outsides of the crank arms. Clearance is the distance between the insides of the crank arms. Please...
                                          £50.45
                                          £57.99
                                          £50.45
                                          Save £7.54
                                          • Black
                                        • FSA Cranks - Ebike Chainset CK-752 Shimano EP800 24.0mm Black

                                            FSA Ebike Chainset CK-752 Shimano EP800 24.0mm Black (165mm) - Black

                                            Forged AL6061/T6 crank arms. Include axle bolt ML598. Length: 165, 170, 175mm. Bead blasted anodized black, laser graphics. Weight: 536g (pair). QFactor is the distance between the outsides of the crank arms. Clearance is the distance between the insides of the crank arms. Please...
                                            £50.45
                                            £57.99
                                            £50.45
                                            Save £7.54
                                            • Black
                                          • FSA Cranks - Ebike Chainset CK-751 Shimano E8000 28.0mm Black

                                              FSA Ebike Chainset CK-751 Shimano EP8 E8000 28.0mm Blk (165mm) - Black

                                              Forged AL6061/T6 crank arms. Include axle bolt ML598. Length: 165, 170, 175mm. Bead blasted anodized black, laser graphics. Weight: 536g (pair). QFactor is the distance between the outsides of the crank arms. Clearance is the distance between the insides of the crank arms. Please...
                                              £61.76
                                              £70.99
                                              £61.76
                                              Save £9.23
                                              • Black
                                            • FSA Cranks - Ebike Chainset CK-751 Shimano E8000 28.0mm Black

                                                FSA Ebike Chainset CK-751 Shimano E8000 28.0mm Black (170mm) - Black

                                                Forged AL6061/T6 crank arms. Include axle bolt ML598. Length: 165, 170, 175mm. Bead blasted anodized black, laser graphics. Weight: 536g (pair). QFactor is the distance between the outsides of the crank arms. Clearance is the distance between the insides of the crank arms. Please...
                                                £61.76
                                                £70.99
                                                £61.76
                                                Save £9.23
                                                • Black
                                              • FSA Cranks - Ebike Chainset CK-320

                                                  FSA Ebike Chainset CK-320 Bosch BNI 27.5mm Black (155mm) - Black

                                                  Die cast alloy crank arms. Length: 155, 165, 170, 175mm. ISIS Drive. / JIS Painted bead blasted black, printed graphics. Weight: 503g (pair). QFactor is the distance between the outsides of the crank arms. Clearance is the distance between the insides of the crank...
                                                  £36.53
                                                  £41.99
                                                  £36.53
                                                  Save £5.46
                                                  • Black
                                                • FSA Cranks - Ebike Chainset CK-320

                                                    FSA Ebike Chainset CK-320 Bosch BNI 27.5mm Black (165mm) - Black

                                                    Die cast alloy crank arms. Length: 155, 165, 170, 175mm. ISIS Drive. / JIS Painted bead blasted black, printed graphics. Weight: 503g (pair). QFactor is the distance between the outsides of the crank arms. Clearance is the distance between the insides of the crank...
                                                    £36.53
                                                    £41.99
                                                    £36.53
                                                    Save £5.46
                                                    • Black
                                                  • FSA Cranks - Ebike Chainset CK-220 Bosch BNI 19.0mm BlackFSA Ebike Chainset CK-220 Bosch BNI 19.0mm Black (165mm)

                                                      FSA Ebike Chainset CK-220 Bosch BNI 19.0mm Black (165mm) - Black

                                                      Die cast alloy crank arms. Length: 155, 160, 165, 170mm. Bosch Axle Interface BNI. Painted bead blasted black. Weight: 456g (pair). QFactor is the distance between the outsides of the crank arms. Clearance is the distance between the insides of the crank arms. Please...
                                                      £38.27
                                                      £43.99
                                                      £38.27
                                                      Save £5.72
                                                      • Black
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