Dirt bike 2 stroke vs 4 stroke longevity

Discussion in 'Motorcycles' started by oohhh yeah, Feb 22, 2012.

  1. oohhh yeah

    oohhh yeah

    Messages:
    528
    How long does a 4 stroke last compared to a 2 stroke? I have heard 30 hrs if you're racing for a new top end, up to 150 if you ride casually for 2 strokes. On 4 strokes...I heard there's less maintenance, but when it breaks then prepare yourself. So how many hours for top end, bottom end?

    Thanks:tup::tup:
     
  2. Bopop4

    Bopop4

    Messages:
    8,100
    Location:
    Canada
    It depends, what type of dirtbike?
    Trail bikes need only regular maintenance, you don't have to replace pistons or anything.
    If the bike is old or has been ridden a lot, then setting the valves and stuff like that would be preferred.

    If you are racing at a high level, then you will have to stick to a strict maintenance schedule, every few races or so.

    It shouldn't really matter whether a trail bike is 2 or 4 stroke. They are so reliable that it is not a big issue, XRs are practically bulletproof.