How it helps
Use it for a focused task
The calculator determines maximum safe trailer loads based on bike type, rider fitness level, cargo weight and distribution, and terrain. It provides hill grade recommendations and safety thresholds.
Below the calculator are practical examples, common mistakes to avoid, and a quick reference for trailer compatibility and cargo securing methods. Select your bike type from the dropdown (road, hybrid, mountain, e-bike).
Choose your fitness level based on how you typically ride. Enter your cargo weight and distribution.


