Bicycle crank removal

Changing chainsets is not something cyclists have to do very often, but it's a simple enough job to learn to do at home, and it doesn't require any really expensive tools.

Last Updated: December 6, Fact Checked. This article was co-authored by Ikaika Cox. He has been a bike mechanic since , beginning as a volunteer with the Provo Bicycle Collective, and growing and honing his skills as a bicycle mechanic and educator in multiple Bicycle Collective locations over the years. There are 10 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed , times. A bike's cranks must be properly maintained to keep your bike operational.

Bicycle crank removal

This article will assist in identifying the crank system found on your bike, and direct you to the article that outlines the full process of removal and installation. Cranks are levers that connect the pedals to the bottom bracket spindle. The cranks are fitted with toothed sprockets called chainrings that drive the chain. Cranks may be removed to replace cranks or chainrings, service the bottom bracket bearings, or to clean the chainrings. Crank systems have become more complex in recent years. To know the service options you will need to know the type of crank and type of bottom bracket bearing system installed in the bicycle. On self-extracting crank systems, the crank puller is effectively built into the crank. Self-extracting systems use threaded rings that look similar to a crank dust cap. However, these crank retaining rings are threaded over the crank bolt, so that when the crank bolt is loosened the shoulder of the bolt presses back against the ring, which in turn slowly pushes the arm from the spindle. No additional crank removal tools are required. Self-extracting systems exist in both two-piece and three-piece form. These have a left crank arm with a compression slot that is secured by two pinch bolts and a right crank arm with an integrated spindle. These systems use external bearing cups and do not need a conventional crank puller. The left side crank is removed to get to the bearings or to remove the right crank. With this system, both the left and right crank arms are fitted with one-half of the spindle system, with teeth machined into each spindle end.

If you enjoyed this video, make sure to give it a thumbs bicycle crank removal and share it with your friends. These systems use external bearing cups and do not need a conventional crank puller. These are the arms connected to the Bottom Bracket consisting of axle, bearings, etc.

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Last Updated: December 6, Fact Checked. This article was co-authored by Ikaika Cox. He has been a bike mechanic since , beginning as a volunteer with the Provo Bicycle Collective, and growing and honing his skills as a bicycle mechanic and educator in multiple Bicycle Collective locations over the years. There are 10 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed , times. A bike's cranks must be properly maintained to keep your bike operational. These are the arms connected to the Bottom Bracket consisting of axle, bearings, etc.

Bicycle crank removal

Changing chainsets is not something cyclists have to do very often, but it's a simple enough job to learn to do at home, and it doesn't require any really expensive tools. In this video Ollie runs through removing and reinstalling cranks to your bike so you can change your chainset with ease! Did you find this video helpful? What maintenance videos would you like us to make in the future? If you enjoyed this video, make sure to give it a thumbs up and share it with your friends. Watch more on GCN Tech We also take a deeper look into the future of cycling, apps, smart tech and virtual riding. Join us on the channel and the GCN App to submit your content, vote on the latest tech and keep abreast of exciting new trends.

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About This Article. Cranks are levers that connect the pedals to the bottom bracket spindle. Stripping out the threads on both extractor and crank arm is common, especially on the gear arm and older bikes. Self-extracting systems exist in both two-piece and three-piece form. No additional crank removal tools are required. More References 4. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. Thanks Helpful 1 Not Helpful 1. What maintenance videos would you like us to make in the future? Co-authors: Place the crank bolts back into their sockets. Hobbies and Crafts Crafts Drawing Games. Both cranks must be removed to service or replace the bearings of a three-piece system.

Removing the crank is a necessary task when performing routine maintenance on your bike or upgrading parts. Once you have these tools ready, you can begin the process of removing your bicycle crank. Follow the steps carefully to ensure a seamless removal process and to avoid any damage to your bike.

These have a left crank arm with a compression slot that is secured by two pinch bolts and a right crank arm with an integrated spindle. You don't need a crank extractor tool for self-extracting cranks. Turn the handle of the Allen key counterclockwise to loosen the crank bolt. By continuing to use our site, you agree to our cookie policy. Pull the crank arm away from the bike to remove it from the rest of the crank. However, these crank retaining rings are threaded over the crank bolt, so that when the crank bolt is loosened the shoulder of the bolt presses back against the ring, which in turn slowly pushes the arm from the spindle. The spindle is held in position by bearings in the frame. Loosen the pinch bolts with an Allen key, if the crank has them. The parts of the three-piece crankset are the left arm, right arm, and axle spindle. Stripping out the threads on both extractor and crank arm is common, especially on the gear arm and older bikes. Thanks Helpful 0 Not Helpful 0. A bike's cranks must be properly maintained to keep your bike operational. You Might Also Like. Use a 15mm wrench to loosen the left pedal from the bike. About This Article.