So I wanted to make my x18 faster. I asked drgnprelude and he said to get a 15 tooth front sprocket and 28 tooth rear sprocket. I searched everything I will get which includes sprockets, chains, and chain breaker. I know how to remove links to the right size (thanks again drgnprelude!) and all that jazz. But he said that I would have to move the rear wheel "into the middle of the slots ". I know what this means but other then his tip, how would you do this? Also, I removed the cover for the front sprocket and saw that it is bolted into the transmission and such. Is this hard to remove and replace or would I just take off the chain, remove the bolts, and replace the sprocket? It looks simple but I don't want to do it wrong and pay for it later. Thanks guys!!