How to remove crank bike

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.

In this in-depth step-by-step tutorial, we'll talk you through the process of removal and refitting for the four major types of crankset — Shimano, self-extracting cranksets SRAM, FSA , Campagnolo and square-taper. Most modern Shimano road, mountain and gravel bike cranksets are comprised of two pieces, with the spindle bonded to the driveside arm. These are known collectively as Hollowtech II cranksets. The non-driveside crank arm is fitted to the protruding portion of the spindle. This is clamped in place using an integrated clamp.

How to remove crank bike

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. If you need to change your cranks, you can do so as long as you have the proper tools. You can use this process to replace Shimano two-piece, SRAM self-extracting two-piece, and three-piece cranks.

Both cranks must be removed to service or replace the bearings of a three-piece system.

Your crankset or chainset comprises the chainrings and cranks, as well as the spindle that connects them, which in most modern cranksets is integrated into the drive-side crank right-hand side. There are many reasons why you might want to remove this — perhaps to fit a new bottom bracket the bearings that allow the cranks to turn smoothly , or to replace worn-out chainrings. The only special tool you need for this is a wrench with a suitable adapter for the adjustment cap in the left-hand crank. Our guide is based on a crankset using a Hollowtech-type external bottom bracket, but most crank systems use similar methods. First, use a 4mm Allen key to loosen up the hex bolts that hold the left-hand crank arm onto the crank spindle. Next, take the bottom bracket tool and fit the black smaller ring into the crank arm adjustment cap. The left-hand crank should now pull away from the spindle easily.

The crank puller is available at affordable prices. So, there should not be a reason not to own one. Removing the bike crank without a puller is not an easy task. Do not worry! Just follow our guide, and you will be surprised by the results you get. We will discuss these steps in more detail. You will need to prepare different materials and tools to complete this project without a crank puller.

How to remove crank bike

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.

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Apply a dab of fresh grease to the spindle, then push it through the bottom bracket. Fit the wrench around the rod that connects the crank arm and pedal. Popular Categories. If your crank has pinch bolts, turn them clockwise with a 5mm Allen key to tighten them and secure the crank to the bike. Trade Resources. As you begin to crank on the extractor, pay close attention to the threads. Go over to the other side of the bike and repeat the process. 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. Self-extracting systems use threaded rings that look similar to a crank dust cap. If you have washers, place them around the crank spindle before installing the cranks. The 10mm hex bolt hides inside the non-driveside crank arm. Our guide is based on a crankset using a Hollowtech-type external bottom bracket, but most crank systems use similar methods. If your crank bolt has a plastic compression cap that goes over it, place the cap over the center of the bolt and push down to pop it into place.

For bicycle owners, removing a crank can often be one of the most challenging and frustrating components of bike maintenance. Not only can it be difficult to find the right tools for the job, but many cyclists also find themselves struggling with techniques and methods for taking off a crank without damaging their bike or risking injury. Fortunately, there are ways to safely remove bicycle cranks without needing specialized tools such as pullers — you just need the right knowledge!

A bike's cranks must be properly maintained to keep your bike operational. Use needlenose pliers to lift one side of the retainer, before removing the other. Thread the crank puller into the threads of the crank arm by hand. Ikaika Cox Bicycle Mechanic. Create an account. Some cranks will have a metal or plastic cap that fits over the bolt on the crank. Then, use the Allen key that you used to uninstall the old cranks to screw in the new crank bolt. To subscribe, or for other enquiries, please contact us. The non-driveside crank should now remove by hand, although you may need to give it a light tap with a rubber mallet from the inside of the crank arm. Take care to avoid hitting the spindles during this step as this can affect the installation of the replacement crank arm. You can find them at bike shops and hardware stores. Part 1. Oscar Huckle is a technical writer at BikeRadar. Replace the adjustment cap, screwing it in gently using the Bottom Bracket Tool.