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.
Charts
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.
Bicycle Gear Speed Calculator: Cadence, Tire Size, and Speed
Use the bicycle gear speed calculator to estimate speed from cadence, tire size, chainring, cog, gear ratio, and wheel rollout.
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.