Bike Cranks

Bike Cranks at Swinnerton CyclesThe connection between your legs and your drivetrain — our bike cranks collection at Swinnerton Cycles covers road, MTB, gravel, and track options from the world's leading component manufacturers. Crank arm length, material, and stiffness all affect power transfer and riding comfort — and choosing the...

Bike Cranks at Swinnerton Cycles

The connection between your legs and your drivetrain — our bike cranks collection at Swinnerton Cycles covers road, MTB, gravel, and track options from the world's leading component manufacturers. Crank arm length, material, and stiffness all affect power transfer and riding comfort — and choosing the right cranks for your body and riding style is an important part of bike fit. We stock cranks from SRAM, Ethirteen, Quarq, and other leading brands, covering aluminium and carbon options across all major bottom bracket standards. Explore Road Cranks, MTB Cranks, and Track Cranks.

Popular Bike Cranks

Road Bike Cranks

Road Bike Cranks
MTB Cranks

MTB Cranks
Track Bike Cranks

Track Bike Cranks
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  • Shimano Fcm6100-1 Lock Ring And Washer Spares & AccesoriesShimano Fcm6100-1 Lock Ring And Washer Spares & Accesories

      Shimano FC-M6100-1 Lock Ring and Washer Replacement for Crankset Maintenance

      The Shimano Spares FC-M6100-1 lock ring and washer are essential components designed to ensure secure crank installation. Made by Shimano, this genuine replacement part guarantees compatibility and durability for smooth transmission performance. Perfect for maintaining or upgrading your bike’s crankset, it offers reliable fastening...
      £16.99
      £16.99
    • Shimano Fcm6100-1 Lh Crank Arm Unit 175Mm Spares & AccesoriesShimano Deore FC-M6100-1 left hand crank arm unit 175mm | Swinnerton Cycles

        Shimano Deore FC-M6100-1 Left Hand Crank Arm Unit 175mm Replacement Part

        The Shimano Deore FC-M6100-1 left hand crank arm unit 175mm offers reliable performance for your bike's drivetrain. Designed as a genuine Shimano replacement, it ensures durability and precise fit for smooth pedaling. What It’s Good For Replacing worn or damaged left crank arms Maintaining...
        £49.99
        £49.99
      • Shimano Fcm6100-1 Lh Crank Arm Unit 170Mm Spares & AccesoriesShimano Deore FC-M6100-1 left hand crank arm unit | Swinnerton Cycles

          Shimano Deore FC-M6100-1 Left Hand Crank Arm Unit Replacement Part

          The Shimano Deore FC-M6100-1 left hand crank arm unit offers reliable performance and durability for your bike’s drivetrain. Designed as a genuine replacement part, it ensures perfect compatibility and easy installation. Crafted with Shimano’s expertise, this crank arm supports smooth pedaling and efficient power...
          £49.99
          £49.99
        • Shimano GRX FC-RX600 10-speed double chainring with 46T large and 30T small for gravel bike components.Shimano GRX FC-RX600 10-speed double chainring with 46T and 30T for gravel bike components, shown on a bike drivetrain.

            Shimano GRX FC-RX600 10-Speed Double Chainring 46T-NF for 46-30T Gravel Bikes

            The Shimano GRX FC-RX600 double outer chainring 46T-NF is engineered for riders seeking reliable performance and durability on demanding gravel rides. Crafted from lightweight aluminium with anodised teeth, this chainring ensures long-lasting wear resistance even in muddy and challenging conditions. Its 46-30T configuration provides...
            £47.10
            £49.99
            £47.10
            Save £2.89
          • Shimano GRX FC-RX600 11-speed double chainring, 46T outer, designed for 46-30T setup, bike components for gravel cyclingShimano GRX FC-RX600 11-speed double chainring with 46T outer for gravel bike 46-30T setup, showing teeth and mounting holes.

              Shimano GRX FC-RX600 11-Speed Double Chainring 46T Outer for 46-30T Setup

              Upgrade your gravel bike with the Shimano GRX FC-RX600 11-speed double outer chainring, designed specifically for the 46-30T setup. Crafted from lightweight aluminium with anodised teeth, this chainring delivers exceptional durability and performance on every ride. Its precise engineering ensures smooth and reliable shifting,...
              £47.10
              £49.99
              £47.10
              Save £2.89
            • Shimano GRX FC-RX600 11-speed double chainring for gravel bike, featuring 46T and 30T chainrings in a close-up view.Shimano GRX FC-RX600 11-speed double chainring, 46-30T, gravel bike component, close-up of the black metal chainring set

                Shimano GRX FC-RX600 11-Speed Double Chainring 46-30T Gravel Bike Replacement

                The Shimano GRX FC-RX600 11-speed double chainring set, featuring a 30T inner chainring paired with a 46T outer, is expertly designed to enhance your gravel riding experience. Crafted from lightweight aluminum with anodised teeth, these chainrings deliver exceptional durability and reliable performance in challenging...
                £34.85
                £36.99
                £34.85
                Save £2.14
              • Shimano GRX FC-RX600 11-speed 1x 40T chainring for gravel and adventure bikes, close-up of the black metal component.Shimano GRX FC-RX600 11-speed 40T chainring for gravel and adventure bikes, mounted on a crankset with a rugged design.

                  Shimano GRX FC-RX600 11-Speed 1X 40T Chainring for Gravel & Adventure Bikes

                  The Shimano GRX FC-RX600 11-speed single chainring 40T is engineered to deliver exceptional performance and durability for your gravel or adventure bike. Crafted from lightweight aluminium with anodised teeth, this genuine Shimano replacement part ensures long-lasting reliability and smooth pedalling. Its thick-thin tooth profile...
                  £56.55
                  £59.99
                  £56.55
                  Save £3.44
                • Shimano GRX FC-RX810-2 48T 11-speed double chainring for gravel bikes, featuring durable metal teeth and black finish.Shimano GRX FC-RX810-2 48T 11-speed double outer chainring for gravel bikes, showing the gear teeth and branding.

                    Shimano GRX FC-RX810-2 11-Speed Double Outer Chainring 48T for 48-31T Gravel Bikes

                    The Shimano GRX FC-RX810-2 11-speed double outer chainring with 48T is engineered for gravel riders seeking durability and performance. Crafted from lightweight aluminium with anodised teeth, it ensures long-lasting reliability while maintaining an optimal weight. Designed specifically for the 48-31T combination, this chainring delivers...
                    £103.70
                    £109.99
                    £103.70
                    Save £6.29
                  • Shimano GRX FC-RX810-2 11-speed double chainring 48-31T for gravel bike components, showcasing the chainring with teeth.Shimano GRX FC-RX810-2 gravel bike 11-speed double chainring with 48-31T teeth, component for cycling drivetrain.

                      Shimano GRX FC-RX810-2 11-Speed Double Chainring 48-31T for Gravel Bikes

                      The Shimano GRX FC-RX810-2 11-speed double chainring set is designed specifically for gravel riders seeking reliable and efficient performance on every adventure. Featuring a 48-31T combination, this set delivers smooth pedalling even in the most challenging off-road and muddy conditions. Crafted from lightweight aluminium...
                      £18.84
                      £19.99
                      £18.84
                      Save £1.15
                    • Shimano GRX FC-RX810-1 42T 11-speed single chainring for gravel bike components, showing the black metal gear with teeth.Shimano GRX FC-RX810-1 42-tooth 11-speed single chainring for gravel bike components, showing the black chainring with gear teeth.

                        Shimano GRX FC-RX810-1 42T 11-Speed Single Chainring for Gravel Bikes

                        Upgrade your gravel or adventure bike with the Shimano GRX FC-RX810-1 11-speed single chainring in 42T, engineered to enhance your riding experience. Crafted from lightweight aluminum and featuring anodised teeth, this chainring offers exceptional durability while maintaining an optimal balance between rigidity and weight....
                        £61.25
                        £64.99
                        £61.25
                        Save £3.74
                      • Shimano FC-M7100 gear fixing bolts pack of 4, genuine replacement spares for bike components, shown on a white background.Shimano FC-M7100 gear fixing bolts, set of 4, genuine replacement spares for bicycle components.

                          Shimano FC-M7100 Gear Fixing Bolts Pack of 4 – Genuine Replacement Spares

                          Upgrade your bike's performance with Shimano Spares FC-M7100 gear fixing bolts, designed for reliable crankset attachment. This pack of 4 ensures a secure fit and long-lasting durability. Crafted as genuine Shimano replacement parts, these bolts maintain the integrity of your transmission system for smooth...
                          £9.99
                          £9.99
                        • Shimano FC-M8100 gear fixing bolt unit pack of 4 for bicycle components, genuine replacement spares, black metal bolts.Shimano FC-M8100 gear fixing bolt set with four replacement bolts for bike components.

                            Shimano FC-M8100 Gear Fixing Bolt Unit Pack of 4 – Genuine Replacement Spares

                            Ensure smooth and reliable gear performance with the Shimano Spares FC-M8100 gear fixing bolt unit. This pack of 4 genuine Shimano bolts guarantees a secure fit for your crankset, maintaining optimal transmission function. Designed specifically for compatibility with FC-M8100 components, these bolts provide durability...
                            £17.99
                            £17.99
                          • Shimano Deore XT FC-M8100-2 36T chainring for 36-26T crankset, bicycle component, black metal gear replacement part.Shimano Deore XT FC-M8100-2 36T chainring for 36-26T crankset, showing the black metal gear with tooth design.

                              Shimano Deore XT FC-M8100-2 36T Chainring for 36-26T Crankset Replacement

                              The Shimano Deore XT FC-M8100-2 chainring, 36T-BJ, is designed for smooth and reliable shifting with your 36-26T crankset. Crafted as a genuine Shimano replacement, it ensures perfect compatibility and durability. Ideal for riders seeking consistent performance and a precise fit, this chainring enhances your...
                              £94.22
                              £99.99
                              £94.22
                              Save £5.77
                            • Shimano FC-M8100 genuine lock ring and washer replacement parts for bike cranksets, shown in the image.Shimano FC-M8100 lock ring and washer replacement components for bike cranksets, shown in the image.

                                Shimano FC-M8100 Genuine Lock Ring and Washer Replacement Parts

                                Ensure your Shimano FC-M8100 crankset stays securely assembled with this genuine lock ring and washer. Precision-made for reliable performance and durability. What It’s Good For Maintains firm crankset attachment Compatible specifically with FC-M8100 models High-quality Shimano genuine replacement part Easy installation and long-lasting durability...
                                £13.99
                                £13.99
                              • Shimano Spares FC-M8100 replacement plate for crankset components, shown in close-up detail.Shimano Spares FC-M8100 replacement plate for crankset maintenance, showing a close-up of the component part.

                                  Shimano Spares FC-M8100 Replacement Plate for Crankset Maintenance

                                  The Shimano Spares FC-M8100 plate is an essential component for maintaining your crankset's performance and reliability. Designed as a genuine Shimano replacement part, it ensures perfect compatibility and durability. What It’s Good For Restoring original crankset functionality Ensuring precise transmission performance Extending the lifespan...
                                  £1.99
                                  £1.99
                                • Set of 10 stainless steel pedal washers for carbon crank pedals by Wheels Manufacturing, durable bike components.Set of 10 Wheels Manufacturing stainless steel pedal washers for carbon cranksets, durable components for bike pedal assembly.

                                    Wheels Manufacturing Stainless Steel Pedal Washers for Carbon Cranks, Pack of 10

                                    Upgrade your pedal installation with these high-quality stainless steel washers from Wheels Manufacturing. Designed specifically for use with carbon and other crank arms, they provide a durable surface that ensures a secure and damage-free fit. Enhance your bike’s performance with reliable components built to...
                                    £17.40
                                    £19.99
                                    £17.40
                                    Save £2.59
                                  • Zefal New Crank Armour Spares & AccesoriesZefal New Crank Armour Spares & Accesories

                                      Zefal Crank Armour Bike Protection Guard – Durable Crank Arm Spares & Accessories - Light Blue

                                      Protect your bike’s crank arms effortlessly with the Zefal New Crank Armour. Designed to shield against impacts and stone chips, this minimal yet effective guard preserves your bike’s transmission components. Its soft thermoplastic material ensures durability while being lightweight and discreet. Available in pairs...
                                      £6.21
                                      £8.00
                                      £6.21
                                      Save £1.79
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                                    • Specialites Ta Cyclotourist Bolts Spares & AccesoriesSpecialites Ta Cyclotourist Bolts Spares & Accesories

                                      Specialites TA Cyclotourist Chainset Bolts Spares & Accessories for Double & Triple

                                      Specialites TA Cyclotourist bolt sets provide reliable replacements for your chainset. Designed for both double and triple configurations, these bolts ensure a secure fit and maintain optimal performance. Crafted with precision, these spares help extend the life of your transmission components while offering easy...
                                      from £34.56
                                      £37.00
                                      from £34.56
                                      Save £2.44
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                                        Hope Evo Non-Drive Side Crankarm Spare Part for Bike Performance Upgrade - Blue

                                        Upgrade your bike with the Hope Evo Non-Drive Side Crankarm for reliable performance. Crafted with precision, it ensures durability and smooth pedaling. Perfect for those seeking quality spare parts to maintain their ride. What It’s Good For Replacing worn or damaged crankarms Enhancing bike...
                                        £112.70
                                        £122.50
                                        £112.70
                                        Save £9.80
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                                          Hope Evo Drive Side Crankarm Replacement & Accessories for Bike Performance - Blue

                                          The Hope Evo Drive Side Crankarm offers durability and precision for your bike. Crafted for reliable performance, it ensures smooth pedaling and efficient power transfer. Perfect for upgrading or replacing your existing crank arm. What It’s Good For Enhances bike pedaling efficiency Durable construction...
                                          £112.70
                                          £122.50
                                          £112.70
                                          Save £9.80
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                                            Hope Evo Non-Drive Side Crankarm Replacement | Bike Spares & Accessories - Blue

                                            Upgrade your bike with the Hope Evo Non-Drive Side Crankarm. Designed for durability and precision, it ensures smooth pedaling performance. Crafted to fit seamlessly with your existing setup, this crankarm offers reliable support for every ride. What It’s Good For Replacing worn or damaged...
                                            £112.70
                                            £122.50
                                            £112.70
                                            Save £9.80
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                                              Hope Evo Drive Side Crankarm Replacement & Accessories for Bike Cranksets - Blue

                                              The Hope Evo Drive Side Crankarm offers reliable performance and durability for your bike. Designed with precision, it ensures smooth power transfer and long-lasting use. What It’s Good For Replacing worn or damaged crankarms Enhancing drivetrain efficiency Compatible with Hope Evo cranksets Durable construction...
                                              £112.70
                                              £122.50
                                              £112.70
                                              Save £9.80
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                                            • Hope Evo Crankset End Cap Non-Drive Spares & AccesoriesHope Evo Crankset End Cap Non-Drive Spares & Accesories

                                                Hope Evo Non-Drive Crankset End Cap Spare Bike Accessory for Durability - Blue

                                                The Hope Evo Crankset End Cap Non-Drive is a meticulously engineered component designed to enhance the durability and performance of your crankset. Crafted by Hope, a brand synonymous with precision and reliability in the cycling world, this end cap plays a vital role in...
                                                £11.75
                                                £11.75
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                                              • Hope Crankset Shaft End Cap Spares & AccesoriesHope Crankset Shaft End Cap Spares & Accesories

                                                  Hope Crankset Shaft End Cap Spare & Accessory for Bike Cranksets - Orange

                                                  Upgrade your bike with the Hope Crankset Shaft End Cap. Designed for durability and precision, this component ensures smooth crank performance. Made by Hope, it fits seamlessly as a spare or accessory, extending the life of your crankset with reliable quality. What It’s Good...
                                                  £12.00
                                                  £12.00
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                                                • Race Face Era pedal boot spares and accessories for crank protection, shown as replacement pedal covers and components.Race Face Era pedal boot spares and accessories for crank protection, showing replacement components and protective covers.

                                                    Race Face Era Pedal Boot Spares & Accessories for Crank Protection - Orange

                                                    Protect your alloy or carbon cranks from the harsh impacts of trail riding with Race Face Era Pedal Boot Spares & Accessories. Crafted from a durable proprietary plastic blend, these crank boots guard the ends of your cranks against rocks and debris, extending the...
                                                    £9.08
                                                    £9.95
                                                    £9.08
                                                    Save £0.87
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                                                  • Race Face Cinch Bolt / Puller Cap M18 X 15Mm Spares & Accesoriesrace face chainset spares cinch bolt puller cap m18 x 15mm p124161

                                                      Race Face Cinch Bolt & Puller Cap M18 x 15mm Replacement for Cinch Cranks - Gloss Black

                                                      The Race Face Cinch Bolt / Puller Cap M18 X 15Mm is a precision-engineered replacement part designed specifically for Race Face Cinch cranks. Crafted from lightweight aluminum, it ensures durability without adding unnecessary weight, maintaining optimal performance on the trail. Its gloss and matte...
                                                      £9.08
                                                      £9.95
                                                      £9.08
                                                      Save £0.87
                                                      • Gloss Black
                                                      • Matte Black
                                                    • Race Face Power Meter Antenna Cap Spares & AccesoriesRace Face Power Meter Antenna Cap Spares & Accesories

                                                        Race Face CINCH Power Meter Replacement Antenna Cap Spare Accessory - Clear

                                                        Upgrade your Race Face CINCH Power Meter with this original replacement antenna cap. Designed to fit perfectly, it ensures reliable signal transmission for accurate power data. What It’s Good For Maintaining optimal power meter performance Protecting internal components from dust and moisture Easy installation...
                                                        from £4.52
                                                        £4.95
                                                        from £4.52
                                                        Save £0.43
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                                                      • Race Face G4 Next SL crank boots protecting carbon crank arms, spare accessories for bike components.Race Face G4 Next SL crank boots for carbon cranks, protective spare accessories, durable component covers for bike cranks

                                                          Race Face G4 Next SL Crank Boots - Protective Spares & Accessories for Carbon Cranks - Yellow

                                                          Race Face G4 Next Crank Boots offer essential protection for your carbon crank arms during intense trail rides. Crafted from a durable proprietary plastic blend, these crank boots shield the vulnerable ends from rocks, debris, and impacts, extending the life of your cranks. Designed...
                                                          £9.08
                                                          £9.95
                                                          £9.08
                                                          Save £0.87
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                                                        • Race Face Alloy Crank Boots protecting bike crank arms, durable aluminum accessories for mountain or road bike components.Race Face Alloy Crank Boots for bike crank arms, durable protective accessories for mountain and road bike components.

                                                            Race Face Alloy Crank Boots – Durable Bike Crank Arm Protection & Accessories - Orange

                                                            Protect your bike’s crank arms with the Race Face Alloy Crank Boots, designed to absorb the harsh impacts of trail riding. Crafted from a durable proprietary plastic blend, these crank boots shield your alloy cranks from scratches, dents, and other damage caused by rocks,...
                                                            £9.08
                                                            £9.95
                                                            £9.08
                                                            Save £0.87
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                                                          • Race Face Carbon Crank Boots Spares & AccesoriesRace Face Carbon Crank Boots Spares & Accesories

                                                              Race Face Carbon Crank Boots – Protective Spares & Accessories for Carbon Cranks - Black

                                                              Race Face Carbon Crank Boots provide essential protection for your carbon crank arms, ensuring they withstand the rigors of trail riding. Crafted from a durable proprietary plastic blend, these boots shield the crank ends from impacts and abrasions, extending the life of your components....
                                                              £9.08
                                                              £9.95
                                                              £9.08
                                                              Save £0.87
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