Frequently Asked Questions
Everything you need to know about CrankSmith's free bike gear calculator and cycling tools
What is CrankSmith and how does it work?
CrankSmith is a free, professional bike gear calculator and cycling optimization tool. It helps cyclists calculate gear ratios, check drivetrain compatibility, optimize bike fit, and determine optimal tire pressure. Simply input your bike components and measurements, and get instant, accurate calculations.
Is CrankSmith really free to use?
Yes, CrankSmith is completely free forever. There are no signup requirements, no paywalls, and no hidden fees. We believe that every cyclist should have access to professional-grade tools for optimizing their bike setup.
What types of bikes does CrankSmith support?
CrankSmith supports all types of bicycles including road bikes, mountain bikes, gravel bikes, touring bikes, cyclocross bikes, and hybrid bikes. Our calculator works with any drivetrain configuration from single-speed to 12-speed systems.
How accurate are the gear ratio calculations?
Our calculations are highly accurate and based on industry-standard formulas. We account for wheel size, tire width, chainring and cassette tooth counts, and provide precise gear ratios, gear inches, and development measurements.
Can I use CrankSmith for bike fitting?
Yes! CrankSmith includes a comprehensive bike fit calculator that uses professional fitting methods. Input your body measurements and get recommendations for frame size, saddle height, handlebar position, and other critical fit parameters.
Does CrankSmith work on mobile devices?
Absolutely! CrankSmith is fully responsive and works perfectly on desktop computers, tablets, and mobile phones. We also offer a Progressive Web App (PWA) for an app-like experience on mobile devices.
How do I calculate optimal tire pressure?
Use our tire pressure calculator by entering your weight, tire size, riding conditions, and terrain type. We'll calculate the optimal PSI for your specific setup to maximize performance, comfort, and safety.
Can I save my bike configurations?
Yes, CrankSmith allows you to save multiple bike configurations in your personal garage. This makes it easy to compare different setups and quickly access your saved configurations for future reference.
Is my data secure and private?
Yes, CrankSmith is privacy-first. All calculations are performed locally in your browser, and we don't store your personal data or bike configurations on our servers. Your information stays on your device.
What if I'm a bike shop or mechanic?
CrankSmith is perfect for bike shops and professional mechanics. Use it to help customers optimize their bike setups, check compatibility before making recommendations, and provide professional-grade analysis for any bike configuration.
Ready to optimize your bike?
Start using CrankSmith's free tools to get the most out of your cycling setup