very poor shifting
ok so my bike has a bad habbit of trying to shift into the top gears when in a low gear, I thought it could be my derailer or maybe I need a new chain.......
Your derailleur might be out of whack, probable needs adjusting.
Try this: http://parktool.com/repair_help/FAQrindx.shtml
This problem is most often due to shift cable stretch or otherwise misaligned rear derailleur. Try adjusting the cable tension at the rear derailleur barrel adjustor. See http://www.parktool.com for instructions. Or it could be a bent derailleur hanger.