The best replacement for bike is treadmill.

The best alternatives to bike are rated as following:
★★★★★  treadmill
★★★★★  car
★★★  elliptical
★★  mountain bike
★★  road bike
★  car drift
★  upright bike
★  walking
★  run
★  scooter
★  motorcycle
★  bicycle
★  longboard
  57 chevy
  triathlon bike
  cop
  hybrid
  atv
  upright
  walking calories burned
  trainer
  moped
  car drag race
  training wheels
  hybrid bike
  stationary bike
  audi
  jogging
  not motorcycles
  cruiser
  boat
  car race
  rollerblades

Your alternative for bike is not listed? Suggest!
Speaking about bike, one probably shouldn't forget about training wheels.

Other search terms related to bike and their ratings are:
★★★★★ training wheels
★★★ pedals
★★★ no pedals
clutch
petrol
You have in mind a companion for bike and it is not yet here? Propose!



Google Trends

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