with the 07s u can lower them by the stoke adjuster or getting one in. Only lower 3/4 inch no more even that well lose lots of performance. I am short legged toes barley reach the ground LOLOLOLOLOLOL. And i got my bike pushing over 150 stallions how u may ask the hole line up for the power commander(mapping,quick shifter,ignion mod,after market exhaust,bmc air filter,brisk plugs) so it fast very for a 600r