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Hotfoot

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Hotfoot last won the day on April 16

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About Hotfoot

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    Superbike School Coach

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  • Have you attended a California Superbike School school?
    Yes! Lots of them. :)

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  1. Experiments with Shifting Gears and Turn Radius

    Huh? Did I say something about a communication lag...?
  2. Experiments with Shifting Gears and Turn Radius

    Just so we are clear, I'm talking about higher rpm while already leaned over, which is not the same thing as having some throttle on while steering the bike. The bike feels more stable in the turn at higher rpm because the lean angle is set and it doesn't want to change because of the increased gyroscopic effect. For me on the S1000rr it can feel more stable at a higher rpm (lower gear) in a slow tight turn like the last few turns at Streets of Willow or Turn 9 at ACS, less reactive to rider movement or rough throttle inputs because the lean angle doesn't change as easily, and the more immediate throttle response when picking up the gas helps me to get better throttle control. Feeling a desire or need to have some throttle on when ENTERING a turn tells you something about your entry speed, do you remember what?
  3. Experiments with Shifting Gears and Turn Radius

    I don't agree that stability is our enemy. Yes the added stability would make the bike harder to steer initially, but a CRF110 is never going to be difficult to get to turn. However, more stability leaned over could make that particular bike easier to manage in a very tight turn, less twitchy and not as reactive to the rider moving around or oversteering, etc., which seems to me to be a bigger consideration on a little dirt bike than getting it to turn in the first place.
  4. Experiments with Shifting Gears and Turn Radius

    So was the rear wheel spinning up more?
  5. Experiments with Shifting Gears and Turn Radius

    What do you mean by "hold more throttle under control"?
  6. Experiments with Shifting Gears and Turn Radius

    Higher RPM in a corner does make a difference in motorcycle handling. Take a look at this article: https://www.msgroup.org/forums/mtt/topic.asp?TOPIC_ID=2182 There is also the effect of greater engine braking approaching the turn, which may have allowed you to shorten your braking distance, or use less brake and get a more accurate entry speed.
  7. How Much Weight On The Seat?

    This particular item, in my opinion, is a great example of something that is not a matter of who is right and wrong as much as what works for one rider versus another, depending on that riders bike and their physical build and flexibility. Different bikes have different rider handlebar heights and distance from the seat, different shaped tanks, different rearset heights and configurations, etc. and that all impacts how the rider can hang on, and hang off. Even if you just narrow it down to sportbikes, you can look at a Ducati gas tank versus a Yamaha gas tank and see that rider lock on will not be the same from one to the other. And of course, a 6'3" 180 lb rider would fit on a bike differently than a 5'1" 180 lb rider. You can go to any track day and see LOTS of riders hanging their butt WAYY off the seat, even riders who are riding at a slow pace in the beginner group. Very often you will ALSO see those riders propping themselves up with their inside arm, and/or crossing their head and upper body BACK over the tank to the other side, so they really aren't shifting any weight to the inside after all. (OK, gallery, what is wrong with propping yourself up with the inside arm?). Some riders are strong enough and flexible enough (and tall enough!) to find a position where they hang off more than half their butt, without causing any unwanted bar input, unstable lower body lock, or excess fatigue - but for MOST riders, half a butt cheek is a much better starting point to create a stable, functional and effective body position. At the school we have a great off track exercise where we put a rider on a bike and work with them one-on-one to find a body position that works for them, along with educating them along the way about what is important about body position - what is the point of hanging off, how to do it (if desired), and how to get a good, comfortable, solid position that works, and then practice it. Just like you say above - knowing not only what to do, but also understanding why.
  8. The bowl is FUUUUNNNN, seems like the best place to get more speed, at least compared to the others you mentioned. It is scary as hell trying to go faster where you crest that hill, where it is blind and off- camber! Which direction were you riding the track, CCW?
  9. S1000RR Rear Suspension

    The data loggers are absolutely incredible in what they do, and small and easy to mount. If you really are interested in one, contact the school office at 800-530-3350. Slicks are really expensive and tires are one of the biggest expenses involved in track riding. If the data logger helps you find the problem with your tire wear (or gives you the info you need to take to your suspension guy or tire guy), it will pay for itself very quickly. The additional riding info that you get that will improve your laptimes will just be a bonus! Edit - BTW if you have a friend that has one, too, you can download your data and compare, creating a "virtual race" type thing where you can overlay your laps and see the differences - where you or your friend is getting on the gas earlier, carrying more speed, braking later, etc., and you can use your combined positive points to improve each other's laptimes. Or just bench race. Anyway it is really great and I highly recommend it!
  10. Crash Analysis

    Since the conditions were a bit wet, and tires were cold, it could be that the bike DID highside but just not as violently as in the video. I'm thinking that if the tire slid out to the rear, but then regained traction (perhaps over an oily patch on the pavement), it could flip it back over to the right but without that violent upward launch, because neither front nor rear tire would have as much grip as what we see in the video on dry pavement. However, I think the scenario John describes above sounds very plausible - even if the wheel just was lifted up a bit by the spring as you went over it, that could take away the resistance on the bars and your countersteering pressure (to lift the bike up out of its lean) would suddenly be too much and cause to the bars to turn too much to the left, so that as the tire lands back on the pavement it would countersteer you into the ground on the right, as John says above. I have had a similar experience on a dirt bike, hitting a round rock mostly hidden under some loose sand - I was leaned a bit to the left and coming up out of a turn, the front wheel was lifted up by the rock and when it came down it slammed me over on the right side. Did you have any sensation of the rear wheel slipping, sliding out, or coming around on you, or any recollection of the bars twisting, or of losing "feel" from the front tire?
  11. 2017 Fleet Break In

    The bikes are already in service, the first school was in February. I don't think there was a need to reach out on the forum for volunteers this year.
  12. Anticipated 34 yrs ago, still not here

    Yeah, and where is my flying car? I'm sure we were supposed to have those by now.
  13. Rear Slides and Saves

    Yes it sounds like there may be some misunderstanding of the purpose and application of the pick up drill, and some pieces that are missing. I'll PM you and we will get it sorted out.:)
  14. Rear Slides and Saves

    What is your understanding of HOW to do the pickup? How it is different from simply countersteering out of a turn?
  15. Exactly. So does Schuberth, and I think AGV too.
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