Quo's Custom Time Rule

An Angle Ascent/Descent Time Rule that helps you set your own pace at different ascent/descent angles

Quo's Custom Time Rule was developed specifically for the needs of serious mountain bikers and climbers.

Simply measure your velocity during a specific ascent or descent and add it to the Quo’s Rule, to get your own most precise trip time evaluation, more precise than with the Tranter’s or Naismith’s rules.