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. 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, how to remove crank bike.

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. Shimano still produces three-piece Octalink and square-taper cranksets.

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. The first thing you'll need to do is remove the bike pedals using the wrench. Once the pedals are off, you can unscrew the bolts in the middle of the sprocket and take the cranks off.

Detach the right pedal from the crank arm with a 15mm wrench.

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.

Replacing or tightening a bike chain , changing a tire, or removing a crankset are a few basic skills you could learn which can help you save cash when it comes to bike repair or maintenance. No one born ready for any profession they choose. A doctor has to spend years studying before he can treat a patient. The crankset is where all the magic happens. The power of your strokes is converted to speed right at the heart of the crankset. Fun Fact: fast pedaling burns fat.

How to remove crank bike

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! By following these steps correctly, you should have an easier time understanding and efficiently tackling this task so that your bike remains in its best condition! Yes, you can! Removing a crank arm without a puller requires a few simple tools and some basic knowledge. However, it is important to note that the risk of damaging your bike or injuring yourself increases when taking this approach, so take extra caution and make sure you follow the steps provided below exactly as they are written. Make sure that if you decide to take this risk, be sure that you are familiar with bike maintenance and have the necessary tools available. If you have a hammer and screwdriver available, you can use them to remove the crank.

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You may need to use a rubber mallet to fully seat the arm. Replace the adjustment cap, screwing it in gently using the Bottom Bracket Tool. Leave a Reply Cancel reply You must be logged in to post a comment. By continuing to use our site, you agree to our cookie policy. Co-authored by:. He has been an avid cyclist since his teenage years, initially catching the road cycling bug and riding for a local club. Purchase a crank extractor tool from a bike store or online. 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. Loosen the cranks with a crank extractor for non-extracting cranks. Loosen the 10mm hex bolt. How to replace a chainring. Both cranks must be removed to service or replace the bearings of a three-piece system. Oscar Huckle is a technical writer at BikeRadar.

The crank puller is available at affordable prices. So, there should not be a reason not to own one.

The left-hand crank should now pull away from the spindle easily. The spindle is held in position by bearings in the frame. How to. Co-authors: Locate one hole, then use a needlenose plier to guide the clip into the second hole. 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. Slide the left crank onto the spindle in the 12 o'clock position. 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. Part 3. 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. Article Summary. Log In. Apply a thin layer of grease to the spindle and the crank bolt — we recommend Campagnolo Professional Grease. 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. How to Stop a Bicycle Rim from Wobbling.