In this episode, you'll learn how to replace the crank with the outer bottom bracket bearings. I will show the exchange on the example of a crank in the Shimano Hollowtech II system. It is a very simple operation, for which you will need three keys: an Allen key, a key to unscrew the bottom bracket, and a small, plastic key to unscrew the lock nut on the crank.
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21 дек 2016