🚴 Bicycle Maintenance Tools

Eight tools for bicycle maintenance and fit — gear ratios, chain length, and sizing. Every one runs entirely in your browser.

⚙️ Gear Ratio & Gear Inches Calculator

Free bicycle gear ratio and gear inches tool.

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📏 Bike Frame Size Calculator

Free inseam-based road bike sizing estimator.

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🛞 Bike Tire Pressure Calculator

Free rider weight PSI estimator.

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🔗 Bike Chain Length Calculator

Free chain links needed estimator.

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🚴 Cycling Speed From Cadence Calculator

Free speed from gear inches & cadence.

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🚲 Bike Saddle Height Calculator

Free LeMond method saddle height estimator.

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🎡 Wheel Rotation Distance Calculator

Free distance per revolution tool.

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🔢 Cassette Gear Range Calculator

Free gear ratio spread calculator.

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