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, 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. The fitting removal process for these is covered later in this guide.

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.

Self-extracting systems exist in both two-piece and three-piece form. Grease the threads of the Hollowtech cap and install it into the non-driveside crank arm. Oscar Huckle Technical writer.

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.

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. The pedals and the bottom bracket are connected by the cranks. The chain is driven by chainrings. Some of the most common reasons we remove cranks are to replace them, service the crank area, or to clean. The first step would be to identify the type of crankset your bike has.

How to remove crank bike

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.

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Then use it to completely unscrew the crank bolt. Then, turn the wrench counterclockwise times to loosen it from the crank arm. Watch: How to fit a press-fit bottom bracket. Log in to access Cyclist Rides using your email pertaining to your subscription. Replace the compression cap and tighten the pinch bolts, if applicable. This is an easy way to screw the pedal back onto the bike. The left pedal is reverse-threaded. How to replace a bottom bracket. Edit this Article. Ikaika Cox. On self-extracting crank systems, the crank puller is effectively built into the crank. Slide the left crank onto the spindle in the 12 o'clock position. You can find them at bike shops and hardware stores.

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!

The left-hand crank should now pull away from the spindle easily. Rotate the crank arm clockwise to detach the pedal. The spindle uses a Hirth joint — this sees the spindle split in the middle with a series of interlocking teeth. Part 3. Article Summary. On self-extracting crank systems, the crank puller is effectively built into the crank. Both pedals should now be completely removed. The only special tool you need for this is a wrench with a suitable adapter for the adjustment cap in the left-hand crank. Feed the driveside crank arm through the bottom bracket shell, taking care to replace any relevant spacers or dust seals. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. Three-piece cranksets comprise of two crank arms and a separate bottom bracket unit, which contains the crank spindle. Registered in England.