Contact

Error reports, topics you'd like us to cover and partnership proposals are all welcome.

What to include in an error report

• The URL of the page with the error, and the paragraph or tool name
• The correct information and supporting sources (links, literature, manufacturer documentation, etc.)
• For calculator errors, the values you entered and a screenshot of the result

Please note

We may not be able to respond to requests for diagnosing problems with individual bikes or for buying advice. For safety-related issues, please contact your local bike shop. Your email address and message are used only to reply to you; for details, see our Privacy policy.