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ChainSprocketCalc

Contact ChainSprocketCalc

Found a wrong number, a missing chain size or have an idea for a new calculator? Send us an email.

Send an Email

Email Us

The best way to reach us is email: chainsprocketcalc@outlook.com

We read every message. Replies are by email and may take a few days.

What to Send

  • A wrong result: the page, the values you entered and what you expected. A shared setup link from the calculator is ideal.
  • A missing chain or sprocket: the designation and a manufacturer source if you have one.
  • A new calculator idea: what you are trying to work out.
  • Privacy or legal questions: see the Privacy Policy and Terms of Use.

What We Cannot Help With

We cannot give individual engineering sign-off or fitment advice for a specific vehicle or machine. For that, ask the chain manufacturer or a qualified engineer. We are an independent site, not a chain or sprocket seller, so we cannot help with orders or warranty claims.