I want to raise my handlebars as my back and neck have been hurting. Also my reach isnt the most comfortable. Anyways, im not sure what route to go. I currently have a trek 6series. What should i do? I was thinking of buying spacers but i noticed that if i put more spacers the screw that connects to the steerer tube (i think thats what its called). Does this mean i would need to buy a longer screw if i installed more spacers? and is this even safe? Please help me out guys to finding the cheapest, safest way to raise my handlbars.