Ride-day tools
One garage for setup, tuning, and faster iteration
Use the free calculator and basic tuning matrix anytime. When you are signed in, AI Tuning uses your rider profile, bike, and feedback together.
Free
Spring Rate Calculator
Quickly estimate a starting rear spring rate from geometry, rider weight, and sag.
Free
Basic Tuning Matrix
Get quick click-based guidance from trail feel without building a full bike profile first.
Free account
MTB Bike Garage
Save your bike setup, key components, and next-step context before you start stacking changes between rides.
Paid access
AI Tuning
Free tools stay open. Upgrade when you want bike-specific AI recommendations and saved runs.
Popular reads
Read the setup guides riders actually search for
Use the free tools when you want action fast, then use these pages to go deeper on spring rate, rebound, brake dive, and paid AI Tuning.
Guide
MTB Spring Rate Calculator
See what spring rate changes on the trail before you jump into the calculator.
Learn hub
Browse all setup guides
Open the guide hub for brake dive, rebound, spring rate, and the free garage workflow.
Free account
MTB bike garage
See why saving the bike setup is the best next step once the problem is clear.