About & corrections
Rider Triangle is a free motorcycle ergonomics simulator. It turns your measurements into a live side-view rider triangle.
What it does
You enter body lengths, seat height, and the handlebar and footpeg positions relative to your hip. Rider Triangle finds knee and elbow angles from the side lengths of a triangle and compares inseam with seat height. Unreachable results stay unreachable.
Who runs it
Rider Triangle is built and run by an independent developer. It is not affiliated with any motorcycle manufacturer, dealer, or gear brand. Contact the operator at dheerajnamburu@gmail.com.
What this release includes
Enter your measurements, see your angles, and compare changes. Save plans in your browser, export tables (CSV) and plan files, or print a report. There are no accounts and no motorcycle database. Plans are not stored on a server.
Report a correction
Email dheerajnamburu@gmail.com with anonymized inputs, the expected result, the actual result, and the method version. Report calculation bugs and missing evidence separately.
Other requests go through the contact page.
What it does not do
It does not rate comfort, fit or safety, and it gives no score. It does not know your motorcycle unless you measure it. Styles are examples, not manufacturer specifications.
Limits
Rider Triangle does not claim certification, professional endorsement, or market-leading accuracy.
Read the terms of use and the privacy policy.