Compatibility Builder
Build it before you buy it.
Start with a frame, add parts by category, and MACH4 checks the interfaces that usually cause expensive mistakes: wheel size, axle spacing, headset, BB, drivetrain, brakes, seatpost, and e-bike platform.
1. Pick a frame2. Add compatible parts3. Review conflicts and adapters
Choose parts for your build
Start with the frame. It sets your wheel size, axle spacing, bottom bracket, and headset — so we can check every other part actually fits.
No matches — try loosening a filter.
ALL GREEN
No issues detected.
Using local fallback DB