ok so i have a dream to build and have a kick ass bike that will be my main means of transportation. so what i'm looking at so far is the GRUBEE 2012 SkyHawk GT5 66cc/80cc Slant Head Bike Motor Kit (Standard Finish) With the GT2 Bike Frame and the Monark Fork Type 2. i've been wondering if i can add the sbp 2 Stroke HD Shifter Kit with a internal gear hub and have disk brakes front and back that way i can stop good and have gears and have a custom looking beast... any and all advice and knowledge it greatly appreciated... thank you in advance