Originally Posted by
ThermionicScott
Pedantic note: your preferred gear ratio is 2.7:1, not 1:2.7.
The pedal cranks make one revolution for every 2.7 the rear wheel makes, the cranks are the first mechanism in the driveline of the bike, so you put them first. Just as in an automobile with a 4:11 to 1 rear axle, the driveshaft, which is before the rear axle, turns 4.11 times for each revolution of the rear wheels. So you are 100% wrong.