Lovely cranksets. So much choice, all do one thing - drive you forward. A crankset (AKA chainset) sits at the heart of your drivetrain transferring all your energy to the chain, through the cassette to the rear wheel. Unnecessary flex and weight in the chainset can seriously waste a portion of your energy. By fitting a good quality crankset your pedal power is transmitted undiluted through the drivetrain, to the rear wheel and to the ground driving you forward with minimal loss. No matter what bicycle you ride, your cycling performance can be improved with a quality chainset and bottom bracket. It's down to you to choose which to go for.