yea its stock for sure. been putting on little things every pay check.. bought the grips, heel guards, exhaust hanger that one just recently broke, new sprockets and chain.. so yea.. i ride open trails..not woods.. and i like racing on the pavement.. i have had a problem when i first start it up it doesnt want to idle and it was backfiring from the right pipe today when i put on the hangers.. i do know i definately need a new air filter and to reclean my carbs so im sure thats the problem