User Guide & FAQ
Everything you need to know about using CrankSmith
Quick Start Guide
Using the Gear Calculator
- 1. Select your crankset (chainrings)
- 2. Choose your cassette (rear cogs)
- 3. Pick your derailleur
- 4. Review compatibility warnings
- 5. Check your gear ratios and cadence ranges
Understanding Your Results
- Gear Inches: Higher numbers = harder to pedal, faster speeds
- Cadence: Your pedaling rate (aim for 80-100 RPM)
- Compatibility: Green = good, Yellow = caution, Red = won't work
Frequently Asked Questions
What does 'chain capacity exceeded' mean?
Your derailleur can't handle the difference between your biggest and smallest gears. Try a long-cage derailleur or smaller cassette range.
Why is my setup showing compatibility warnings?
Common issues include derailleur capacity limits, chain line problems, or mismatched speeds (10-speed vs 11-speed). Check the specific warning for details.
What gear ratio should I use for climbing?
For steep climbs, aim for gear inches around 20-30. This gives you a low enough gear to maintain 70-80 RPM cadence uphill.
How do I save my bike builds?
Use the 'Save to Garage' button after configuring your setup. You can name and organize multiple builds for different bikes or riding styles.