Mountain Bike Crank Nut

If you read the reviews you will notice several people buying these to fix old mongoose mountain bikes.

Mountain bike crank nut. Shimano on social media. You want to do this slowly knowing that your chain can jump off and possibly hit your hands if it s not properly tuned. I ordered the nut and tightened the crank arm back on. Components mtb category crankset.

That s what i did. Do this by turning the bolt or nut in a counter clockwise direction. This is a perfectly fine 14mm nut for holding your bike s crank arm on to the axle. When you do this it loosens the crankset and bolt and lets you remove it with ease.

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I was given a bike to fix and the left crank arm was missing this nut. Remove the crank bolt or nut.