Hey guys, just picked up my new bike. Its a Specialized Hardrock Comp. I have a few questions about the shifting. It doesn't shift easy into the highest cog in the rear or the highest in the front. I can make it shift by hold the shift nob down and putting a little more pressure on it. I want to adjust it so I can shift it on the fly. I know how to adjust the derailleur, but I'm not sure if this is the issue.