I AM CHANGING THE CHAIN AND SPROCKETS ON MY 88R. I NEED SOME HELP ON WHAT SIZE SPROCKETS TO GET (NUMBER OF TEEH FOR EACH). SOMETHING FOR ALL AROUND PERFORMANCE, SOMETIMES RACING SHORT MX TRACKS. I WILL BE USING A 18X11X8 TIRE. WHO MAKES A GOOD CHAIN AND SPROCKET?? ALSO, ANY INPUT ON WHAT KIND OF PIPE EVERYONE IS USING, IS LRD ADJUSTABLE ANY GOOD??