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fritzdacat

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Everything posted by fritzdacat

  1. Yes, it gets changed often because I am racing it, it was changed right before my race. It was done by a motorcycle mechanic, hopefully using the right oil, but I can check. What should I look for as a bad oil or additive for a race bike? This bike has a CR250X dirt bike engine. Thanks for the tip about the oil as something to watch for. I'll be changing the clutch anyway due to a high number of hard hours I've put on it, it's almost certainly due for it. Look out for additives of any kind, if in doubt use the pure mineral oil with no synthetic stuff in it . Motorcycle oils have special specification codes, I'm not sure if this is international, here in Germany the norm for motorcycle oils is "JASO MA" . HTH
  2. Did you have the oil changed recently? Some additives in (car!)-oils that are supposed to reduce friction are poison for motorcycle clutches.
  3. It's important to know about the steering impuls because in an emergency situation you can react more directly. Trying to move your weight from one side to the other and indirectly causing a steering impuls may be too slow to avoid (for example) a collision with an oncoming vehicle in a turn, sometimes you may even have to shove the handlebar really hard.
  4. I don't think so, Imagine there is a bump on the road and you go over it, when you're on the outside peg you're counteracting the force (caused by the bump) going up and you are pushing the rear tire down. When you're on the inside peg you not counteracting the force caused by the bump at all.
  5. definitely makes sense and the picture makes it even more plausible.
  6. Your right, Eirik. I am afraid to change directions under ANY conditions. Pesky darned corners! Sorry, hadn't meant to make you more insecure... Just be aware that with a smooth rollon the bike is in it's most stable condition (after having reached the intended leanangle) , it's sort of like the "zone diet" for motorcycles. The safest way to add (or change) lean angle is without throttle or brakes, you're right about that, it's "pretty darn safe"
  7. pretty darned safe but not totally safe. Make sure your tires are warmed up, it is possible to lose the front if you don't roll on the gas fast enough after having reached your lean lean angle. Correct me if I'm wrong, the quickflip goes hand in hand with an as early as possible smooth rollon IMHO.
  8. I remember now what that instructor said to us: when you apply pressure to the inside peg you add force to the outside of the turn (simply because of the more pointed angel of the line from the peg closer to the street surface to the tire contact patch) , pressure on the outside peg results in a force to the inside of the turn thus giving more traction
  9. An instructor at a safety training (2007) told us (students) that adding weight to the outside footpeg would enhance traction of the rear wheel, I never fully understood why though so I cannot deal with any detailed physical explanation , only remember that what he said seemed to make sense at the time
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