Originally Posted by
lennyparis
Do people not use all their gears then?
If for example I am in the large ring and don't use the 11 or 12 why have them?
Or if I ride in small ring with 13, 14, 15 on cassette why have big ring?
There will be gears that you use a lot more than others, depending on the terrain you ride. Ride in the gear that allows you to spin the cadence you want.
Some people do eliminate one of the front chainrings or get along with a narrow range of gears if they find they never need the full range.