WTD: either 20” front disc dynamo wheel or disc dynamo hub

Don't worry about formatting, just type in the text and we'll take care of making sense of it. We will auto-convert links, and if you put asterisks around words we will make them bold.

Tips:

• Create headers by underlining text with ==== or ----
• To *italicise* text put one asterisk each side of the word
• To **bold** text put two asterisks each side of the word
• Embed images by entering:
   
  That's the hard one: exclamation, square brackets and then the URL to the image in brackets.
• * Create lists by starting lines with asterisks
• 1. Create numbered lists by starting lines with a number and a dot
• > Quote text by starting lines with >
• Mention another user by @username
• For syntax highlighting, surround the code block with three backticks:
  
  ```
  Your code goes here
  ```
  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.