Let's say I could understand and really measure my bike's rear race sag (with all equipment and stuff, just like the manual says)... And now? Assuming there's little chance that it will be OK, how we can turn the "nut" in the top of the shock if it's in the bike? There's no room at all... I think removing is not the option, since then you will have to reassemble, measure again, disassemble again, re-measure, etc...
Ok... What is the magic?
Ok... What is the magic?