How many speeds (gears) do the bikes have?
14-inch Bikes
1-speed, no coaster brake
16-inch Bikes
1-speed, no coaster brake
20-inch Small Bikes
1-speed, no coaster brake
20-inch Large Bikes
6-speed (gears), no coaster brake
24-inch bikes
7 speed "mega-range" (easier to go up hills than normal 7-speed bikes), no coaster brake