[Closed] Settle a debate about braking please

If you really think you don't use front brakes on steep descents, try some sessions using only the back brake then only the front brake. Start slowly and build up your speed as much as you are comfortable. You will find that you can ride down very steep stuff with only a front brake. You cannot ride down steep stuff with only a rear brake, the rear tyre will skid and you will have to bail. It's much faster to have both. You probably won't be consciously aware of it, but anytime you are descending fast, you will be doing most of your braking with the front and just using the rear for balance and control.