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PGI last won the day on August 11 2017

PGI had the most liked content!

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About PGI

  • Rank
    Cornering Apprentice
  • Birthday 08/26/1960

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    Bakersfield, CA
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    Religion, family, friends, business, engineering, investments, health, surfing, golf, career, relaxing.

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  • Have you attended a California Superbike School school?
  1. I think you nailed it. Just for the sake of non physicists, the rapid quick flick produces an upward force which decreases front tire contact patch area, and, applying throttle further decreases the front tire contact area, maybe even to zero, and upon leaning in the opposite direction, the front tire regains traction and because the front wants to self correct, the tank slapper motion begins?
  2. At Buttonwillow RT in CA, turn 1, clockwise, April, I attempted a quick flick at 25 mph. It was session 2, first lap, and i went down. The front tire lost traction. After that crash i recalled the T2 video where the question is posed to the class, "Do you quick flick the bike when you're tires are cold?". The resounding answer: NO! The morning temperature was about 50F. Street tires. No tire warmers. I cancelled my late November track say in Chuckwalla without regret. Some like it hot.
  3. No idea. The track looks flat to me.
  4. It's as if the rider's mind couldn't process what just happened, and is now catching up, when finally the rider realizes speed is too low and now starts applying throttle.
  5. Good point about senses overwhelmed, or losing sense of speed.
  6. Found something from Lnewqban regarding charging, and I'll paraphrase it: You know you are charging your turns when you discover you scrubbed off too much speed and are now in the turn at a speed you know is too slow. You lost your sense of speed.
  7. Any forum content discussing charging turns? This discussion may touch on the topic of charging. It's hard to find a good explanation of what charging turns means. Reading between the lines it seems charging means: a) chopping the throttle rather than rolling off b ) coasting c) hard braking then sudden release just before turning. Instead do this: a) roll off the throttle, or roll off some and maintain a speed, then complete the full roll off b ) hard braking then gradual release to adjust entry turn speed using your sense of speed Best,
  8. As to when to quickflick, it seems do it after braking, and don't mix trail braking with the quickflick. Trail brake when adjusting entry speed in high speed turns, where realistically, I don't think it's possible to quick flick.
  9. I see. I wouldn't dare look for the traction limit either by sliding a tire on the street-the track, maybe. Interesting about the Dunlop 208s-probably the cold temperatures had a lot to do with the sliding. In California, it's never cold. I'm running Metzlers, they stick like glue, and I'll probably stay with them until further notice.
  10. Eirik, Regarding Michelins, do you use them because they provide a buffer (traction loss warning) but just not as much as Pirellis?
  11. Bummer. I would slow down to 75% and revisit counter-steering. Press on the right bar to turn right, and left to turn left. You can't possibly quick-flick the bike any other way. The Twist II DVD illustrates the comedy of body steering and peg weighting as steering tools. Peg weighting is great to lock on to the bike and facilitate pivot steering-push with your quad muscles into the tank on one side, and press horizontally on the bar on the other side. Also, ensure your body is low enough to make your counter steering effective; it is possible that you are pressing down on the bar instead of horizontally, making your counter steering ineffective or inefficient. Paying attention to riding can be tough with new life events. A new job and a newborn will demand attention; riding fast, like any sport, is a mental game and the athlete pays a price when not focused. Best wishes.
  12. Racing tires & premium street tires tend to have a buffer zone, where the tires slide but still the rider maintains control, whereas street tires (not premium) once they lose traction and begin to slide, lack a buffer zone, slide suddenly and quickly, and control is much more in question. How does one tell a premium street tire from that which is not a premium street tire? Riding track days and street and not racing makes me not want to install racing tires on my machine. Is trial and error the only way to test how street tires will slide, whether it be sudden and quick, or whether they will exhibit a more gradual, more controlled slide?
  13. Traction,Sliding,Warning

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