The best replacement for stride is step.

The best alternatives to stride are rated as following:
★★★★★  step
★★★★  orbit
★★★  5 gum
★★  height
★★  pace
★  strive
★  eclipse
★  ragtime
★  orbit vine
★  stride 2.0
★  no stride
★  trident
★  stride
★  walking stride
  short stride
  orbit gum
  five gum

Your alternative for stride is not listed? Suggest!
Speaking about stride, one probably shouldn't forget about pride.

Other search terms related to stride and their ratings are:

★★★★★ pride
You have in mind a companion for stride and it is not yet here? Propose!

Google Trends

Scale is based on the average worldwide traffic of stride in all years. Click on graph for more.