New answers tagged sram
You'll net to release the cable anchor on the derailleur. Place the shifter in the 8th position. Turn the cranks and the chain should shift the the highest gear. Reset the high limit screw. Pull the cable snug and tighten cable anchor. You will likely need to fine tune with the cable adjuster.
First thing to check is if your rear derailleur is bent. If that is not the case, check the cable tension is not too high. Is the shifter acting funny (like hard to shift)? See this link to see how to do adjustments: http://www.parktool.com/blog/repair-help/rear-derailler-adjustments-derailleur
If you're looking for a Shimano group set, I prefer the Shimano groupset xt. It is budget friendly. You'll love the quality and the performance of this brand and unlike some of the other group sets it works smoothly.
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