What is better 24 inch or 26 inch bike?

the 24 inch and 26 inch bike that you have refered to is the wheel size. one wheel is 24 and the other is 26 inches. that's how department stores sell bikes with a standard frame and wheel size.

Get Around This Summer with this Schwinn 26In Womens Bike A great way to get where you’re going or just cruise around enjoying the warm sun and fresh breezes of summer, the  Schwinn Suburban Bike  is miles of fun in one comfortable package. Equipped to deal with bumps and jolts to provide a smooth ride whether you’re headed across town or down a casual trail, this ...