i would like to buy a 2 stroke honda nsr150 but i am worried about its reliability and maintenance issues due to its being 2 stroke. my understanding is 2 strokes are cheaper to maintain but need to be maintained more regularly. From reading the nsr150 maintenance thread, some guy had to pay $1400 for a "top end rebuild"! I understand that this has to occur every 15000km is this true? is this normal for a bike? would a 4 stroke require this? as $1400 every 15000km is very costly! thanks PS: I am a total newbie at bikes, just got my Ls!