CrankSmith
Forge The Perfect Ride
The ultimate toolbox for the modern cyclist. Optimize your build with our professional compatibility checker, gear ratio calculator, and weight analysis tools.
Start a New Build
The Workshop
The core builder. Validate compatibility across thousands of parts and standards.
The Drivetrain Lab
Gear Metrics
Analyze ratios, speed, and climbing capability. The ultimate reality check for your drivetrain.
The Contact Patch
Tire Pressure
Optimize for speed or grip. Advanced calculations for rim width and casing suppleness.
The Scale
Weight Weenies
Gamify your gram obsession. Calculate cost-per-gram saved and simulate upgrades.
Your Collection
My Garage
Manage your saved builds, projects, and dream bikes.
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