v3.0 — Precision Engineering
Forge The
Perfect Ride.
Professional cyclicng gear configurator tool for performance cyclists. Validate compatibility, calculate physics, and engineer your dream build.
Strict Validation
Axle, Drivetrain & Geo Gates
Real-time Physics
Weight, Speed & Ratio Calc
Deep Compatibility
Cross-brand "Mullet" Support
Built Different
Not another generic bike builder. CrankSmith understands the intricate compatibility rules that make or break a build.
The Axle Gate
We match interfaces, not names. Boost 148 vs 142, Thru-Axle vs QR—if the hub spacing doesn't align, the build fails.
Weight Weenie Logic
Every bolt counts. Our database tracks gram-level weight for every component, giving you a live running total.
Capacity Guardrails
Exceeding derailleur capacity? Mixing electronic and mechanical? The engine flags it with detailed conflict reports.