Bicycle Gear Meters: Understand Development and Rollout
Use bicycle gear meters of development to compare how far your bike travels per crank revolution across chainrings, cogs, and wheel sizes.
Bike Calculator
Here are the list of tools we develop to help cyclists, including resources for calculating the appropriate bike size and gears, ratio etc.
Bicycle Gear Ratio Chart: Compare Easier Climbing and Faster Gears
Use the bicycle gear ratio chart to compare chainrings, cogs, climbing gears, faster gears, and related gear inches/meters tools.
Bicycle Gear Inches Calculator: Compare Gears Across Wheel Sizes
Use gear inches to compare chainrings, cogs, and wheel sizes, then connect the result to cadence, rollout, climbing, and speed.
Crank Length Calculator: Find a Safer Starting Size
Use the crank length calculator as a starting point, then check fit, knee comfort, hip angle, ground clearance, and bike type before swapping cranks.
Mountain Bike Tyre Pressure Calculator: Start With Grip and Control
Use the mountain bike tyre pressure calculator as a starting point, then adjust for rider weight, tire volume, tubeless setup, terrain, rim protection, and conditions.
Bike Frame Size Calculator: How to Use the Result
Use the bike frame size calculator to estimate your frame size, then check standover, reach, bike type, geometry, and test-ride fit.
Bike Gear Ratio Calculator: Compare Chainrings, Cogs, Gear Inches, and Speed
Use the bike gear ratio calculator to compare chainrings, cogs, cassette range, cadence, climbing gears, top speed, and drivetrain tradeoffs.
Skid Patch Calculator: Fixed Gear Tire Wear and Gear Choice
Use the skid patch calculator to understand fixed gear tire wear, chainring and cog combinations, rotation points, and safer setup choices.