i do not want to have bigger cog in the casette, i just want to benefit from 36t largest cog in crankset, that allows me to put tighter-graduated casette in the back, starting from the 25t cog which is +/-1% equal equivalent of my 50/34t current setup, i had 36-22t crankset in my old mtb that currenlty is used by my brother, and 12-21t casette, its amazing how well it works, want to ride faster? just shift the gear up, you will feel just little more resistance on the pedals but low enough to still keep your favourite cadence, which for me oscilates between 105-115 rpm, i have quite thin legs and i hate low cadences, i dont have enough strength and my current setup require from me to be both low and high cadence cyclist, on that mtb i remember i was overtaking the electrical scooters on the bike lanes in my city.