Steepest incline

Hi there,

I was trying to find the steepest incline in Zwift but couldn’t find the information on Google or here.

I know there is a very small portion at 17% on the climb to the radio tower in Watopia, and I seem to remember there is also an 18% gradient on the New York course.

Can someone confirm ?


Yes there’s a short bit of 18% in NYC: