What is SRAM 3.0 used for? And how is it used? I realized that a 24 speed bike has 3 numbers on left, and then 8 numbers on right.
Does that mean SRAM on 2 and Right number on 8 mean the 16th speed? I have tried a bike like this and found that this "16th speed" is actually much easier to pedal than on another bike at regular 6th speed. I'm not really understanding what SRAM is. Does it make the bike much heavier?