Ultegra SM-fc6601 Hollowtech bottom bracket road (68mm shell & English threaded)

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Tips:

• Create headers by underlining text with ==== or ----
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• To **bold** text put two asterisks each side of the word
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  That's the hard one: exclamation, square brackets and then the URL to the image in brackets.
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• 1. Create numbered lists by starting lines with a number and a dot
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  ```
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  Just like Github, a blank line must precede a code block.
• If you upload more than 5 files we will display all attachments as thumbnails.

For a full reference visit the Markdown syntax.