With three boys I have been through so many little bikes it's ridiculous. PW50, CRF50, KTM50, PW80, KX65, KX85, KX100, TTR125, CRF150R, TTR230 and a YZ125. Four stroke trail bikes like TTR and CRF-X are great for timid kids who ride trails and don't want to jump but are heavy. The CRF150R is...