I have a 2005 crf150 the bike fun to ride . The power not to good but ok i trail ride with a friend with a crf 450r i can stay with him as long if he stays out of the gas .The trails we ride are tight and you can only get to 25 30 mph .I´am 39 and 170 suspension soft but still an fun ride and i can ride when he working on his bike .