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The VeloBotan website features various calculators and articles on bicycles, their construction, customization, component installation and repair, and much more.

Cycling simulation calculator

Simulation of cycling and display of the main indicators: speed, power, calorie consumption, etc.

Full bicycle drivetrain calculator

Calculation of transmission characteristics: range, gear ratios and speed in all gears, cassette pitch, load increase, etc.

Drivetrain Compatibility Calculator

Checking the compatibility of Shimano and Sram bicycle drivetrain components: shifters, rear derailleurs, cassettes

Calculator and article about bicycle wheel sizes

Bicycle wheel sizes in centimeters, inches, French standard and ETRTO (ISO), how to measure the diameter correctly, size tables