Gear Configuration
Chainring Configuration
Set number and teeth count of chainrings
Cassette Configuration
Set number and teeth count of cassette cogs
Wheel Settings
Configure wheel size and tire size
mm
700mm + 25mm×2 = 750mm
Saved Configurations
Bike Gear Ratio Chart
Unit System:
Current Configuration
Cadence Range Adjustment (RPM)
60 RPM 130 RPM
Low-speed gear (<20 km/h)
Medium-speed gear (20-35 km/h)
High-speed gear (35-50 km/h)
Extreme-speed gear (>50 km/h)
Table Description: The table shows speeds for different chainring-cassette combinations at various cadences. Calculations include wheel size and tire thickness; wider tires increase actual wheel diameter and corresponding speed. Color coding helps quickly identify different speed range gears. Gear ratio = chainring teeth ÷ cassette teeth, higher values mean faster speeds. Each cell shows speed above and gear ratio below. Cadence is fixed at 50-125 RPM, displayed every 5 RPM.
Gear Ratio Knowledge
Learn about bicycle gear ratios and cycling performance