Professional Bike Gear Calculator & Cycling Tools
Calculate gear ratios, optimize bike fit, check compatibility, and perfect your setup with professional-grade tools trusted by cyclists worldwide.
Professional Tools
Everything you need to analyze and optimize your bike setup
Bike Gear Calculator
Professional gear ratio calculator for road, mountain, gravel, and touring bikes. Compare drivetrain components and optimize your bike gearing setup.
Professional Bike Fit Calculator
Calculate optimal saddle height, reach, and stack using LeMond, Holmes, and Hamley bike fitting methods based on your body measurements.
Cycling Tire Pressure Calculator
Get perfect tire pressure for road, mountain, and gravel bikes based on your weight, terrain, and riding style for optimal performance.
Cycling Performance Analysis
Deep insights into cycling speed, cadence, and efficiency across different terrains. Optimize your bike setup for maximum performance.
Why Choose CrankSmith?
Trusted by cyclists, shops, and professionals worldwide
Save Money on Bike Components
Avoid costly mistakes by understanding bike component compatibility and drivetrain matching before you buy cycling gear
Perfect Bike Setup
Get personalized bike recommendations based on your cycling style, body measurements, and performance goals
Real Cycling Data
Access accurate specifications for thousands of bike components, drivetrains, and cycling equipment from top brands
AI Cycling Expert
Get answers to technical bike questions with Riley, your AI cycling and bike mechanic expert assistant
Meet Riley, Your AI Bike Expert
Get instant answers to your bike questions from Riley, trained on thousands of maintenance manuals and brand support docs. Whether it's upgrades, installations, or compatibility - Riley knows bikes.
Ready to Optimize Your Setup?
Join thousands of cyclists who've already optimized their bike setup with CrankSmith
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