Im thinking of making my 07 WR250F street legal. I would like to be able to do about 50-60mph w/o turning high RPMs. The stock garing is 13-50. Anybody have any suggestions please? Also my riding style is medium pace trail riding- single track, atv trails ect. NOT RACING. I know this is beating a dead horse but can I get more hrs on the enging w/o the frequent valve checks you guys have posted about? Does the engine sound different when its due or do I have to just go off HRs? Thanke for any info.