Gymkhana

Discussion in 'The Perfect Line and Other Riding Myths' started by Vulfy, May 6, 2012.

  1. TheWall

    TheWall 0 miles and counting

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    'Scuse us Yanks -- we don't always follow your accent :) Do you mean a big handful of brakes, or throttle? If you mean brakes, I did that once on my mountain bike, and that was quite exciting enough. The front suspension dove, causing the bike to tuck into the turn, which caused the suspension to tuck even more...it just about threw me over the handlebars. I've given the Strom a lot more caution on the brakes when turning as a result of that learning experience on the bicycle (see, my dad was wrong -- I *CAN* be taught as long as the lesson is memorable enough :lol3 )

    OTOH, if you mean a handful of throttle, I'm curious what happens. Did the front tire wash out from under you due to too little traction?
  2. Harvey Krumpet

    Harvey Krumpet Been here awhile

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    I'm taking the 1.5mtrs with a pinch of salt, I lie to my girlfriend about length & distance:evil.

    I got my G/F to work a bit harder last night too, er, accelerating & braking. She tends to sit at an appropriate speed for whatever she is doing, cones or on the road & I'm trying to get her to "ride" the bike. Brake for the corner, set up your apex & on the gas, you know, the best bit, why we ride.
    Poor wee soul had the same problems as me, going a bit quicker, a bit more physics coming into play & trying to co-ordinate the brain & body at the same time. She did very well, though. I'm proud of her. Even when she locked the front in a turn, epic save on her part...........:clap
  3. Harvey Krumpet

    Harvey Krumpet Been here awhile

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    It was throttle... The wee 2t lifts the front real easy in first & second. I was trying to emulate the pros & really get on the gas hard & early but ended up tipping the bike into the next turn with the front & rear brake on & the front wheel coming back to terra firma which tucked the moment the forks loaded, I had the presence of mind to release the front brake when the bars tucked, stick my size 12 out & get on the gas. I did manage to keep my head up!! Needless to say I went, er, off course. The bike just dropped. EEEEK! I'm sure the bike would have made it but I couldn't. I would not get away with it on Tubby. I did not have time to think so this is a bloody good instinct to have developed.
    Getting into the turn with the front brake on is hard, I'm getting better but again with both brakes on the bike turns really hard. Releasing the front, maintaining good revs & keeping the rear brake on is another art I have to master. Once the bike starts too turn & you release the front brake it runs wide unless you give it more back brake at which point it wants to dive for pearls & I'm waiting for the back tire to lock up. Bare in mind I'm running dual purpose rear & semi knobblie 21" front. My faith is being sorely tested.
    As much as my head is screaming Nooooooo! motogymkhanaman is right, the bikes will corner ridiculously hard & fast, way beyond my abilities. I don't mind admitting I'm right out of my comfort zone & at times scaring myself silly.
    I may well be wrong but I don't think my technique will improve unless I go faster, the braking & accelerating transition & the rate of turn seem to be exponential. For not a lot more speed everything happens far quicker & more violently and it becomes a heap more physical. The old bad habits come back too.
    Practicing correct braking in a straight line as a warm up shows just hard you can brake & helps a lot on the 8's.

    Yeah, cheap thrills:clap
  4. Harvey Krumpet

    Harvey Krumpet Been here awhile

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    Something else I noticed which I'm sure Vulfy is finding. On the wee trailies with long soft forks going into the turn with the front brake on really decreases the radius. That's what happened with my throttle faux pas, it did not lock but came around hard enough to kiss the back tire. I would guess that's the first time I've hit the stop.:D
  5. Storm Shadow

    Storm Shadow Thread Ninja

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    Well you only have so much traction use to much n u slide. I love the diagram of coeffecient of traction from a very old book the racing driver gosh i read that when i learnt to drive 20 years ago

    send on a small touch screen by a guy with fat fingers
  6. Vulfy

    Vulfy Been here awhile

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    This is one little snippet of Takashi Tominaga riding, just blows my mind.
    Look at the absolutely INSANE way he changes his bike direction.

    <iframe width="560" height="315" src="http://www.youtube.com/embed/CMBjIBvRM5o?rel=0" frameborder="0" allowfullscreen></iframe>
  7. liquid_ice

    liquid_ice Been here awhile

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  8. Storm Shadow

    Storm Shadow Thread Ninja

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  9. Motogymkhanaman

    Motogymkhanaman Been here awhile

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    Ha! That would be interesting to see, but sadly I don't ride anywhere near as often as I should. My lofty position in the Moto Gymkhana Association means I am always running round being a general dogsbody at most competitions delivering safety lectures and timing GP8 attacks, so much so that I go home having not touched a bike all day.

    One day, some enterprising cove might catch some footage of me actually riding the mighty Fazer and post it up onto Youtube, but I would think you might have to wait some time.
  10. GISdood

    GISdood Been here awhile

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    I just stumbled across this thread... wow! Great work putting all this material together in one spot, Vulfy! (and of course thanks to everyone else that's contributed as well)

    I'm definitely going to be scooping some cones from the rider's training school I teach with and will be heading out to the parking lot for some GP8 action!

    This may even become something we can work into riding clinics and perhaps even novice rider training (to a slightly lesser extent, of course). Anyway... just wanted to chime in and say thanks, and that I'll definitely be posting up some video and time results when I get a chance.

    In the meantime, here's a little clip my wife took while we (the riding school) were running a tight little skills challenge at a local bike show & shine a few years ago.

    <iframe src="http://www.youtube.com/embed/GC0yZqOBJ8A" allowfullscreen="" height="315" frameborder="0" width="420"></iframe>

    Looking forward to trying this out... we'll have to see whether my DR650 or my wife's DRZ-SM is the better tool for the job. I'm infinitely more comfortable in tight turns and counterbalancing with the DR, but there's no denying the quick turn-in and sheer fun factor of 17" sport tires on the SM. We shall see....
  11. Harvey Krumpet

    Harvey Krumpet Been here awhile

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    Great vids GISdood & liquid-ice. I'm going to have to travel 100's of kmh's to enter a comp if one gets organised. Living at the edge of the world has it's price. They high light the difference between big bikes & little bikes IMHO, it's like watching myself on the two bikes.

    GISdood, I started this when my girlfriend cocked a leg over a bike for the first time, basic handling 101. We enjoyed it that much that we have continued, I've also realised it has improved my general riding immensely. After a recent ride with our instructor he commented on the high standard of Jasmins riding for a novice. She has had very little open road time so it's directly attributable to the cones. I keep getting reminded when I watch other bike sports that the skills we use at 20 kmh are the same as those 200 kmh. Can't be a bad thing.:freaky
  12. CaptainSWJR

    CaptainSWJR Adventurer

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    One thing I noticed the other day was that I was faster if I shifted my weight before the turn.

    I'm riding the bike on the straight slightly leaned over with my weight already shifted. When I get into the turn, the bike goes from mildly leaning one way to mildly leaning into the turn with my fat ass hanging off the side.

    It's sort of necessary on my part because my bike will scrape floorboards otherwise. It's not exactly designed to cut corners...
    [​IMG]
    Those floor boards start draggin sooner than you'd think.
  13. Harvey Krumpet

    Harvey Krumpet Been here awhile

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    That's exactly what Stoner & Rossi etc do, same reason too. Smoother more stable turn in, better control & maximising ground clearance for more speed.
    Stick a 46 on the side of the bike!:freaky
  14. Motogymkhanaman

    Motogymkhanaman Been here awhile

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    We try and keep our backside firmly in the seat and use just the upper body (along with its very heavy head) to change the position of the combined C of G. There usually isn't enough time during an attack to move any part of the lower body.
  15. Vulfy

    Vulfy Been here awhile

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    Got tired of GP8 last session, so was trying to knee drag..... no knee dragging, but no more chicken strips on rear either now. :D I was close though. A few more practices and some brass balls, and I should be able to drag it. Haha

    Also christened DRZ with a small drop. Handled it like a champ !

    GISdood :wave glad you and others find this thread useful and entertaining. :D Nice video
  16. TheWall

    TheWall 0 miles and counting

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    On a DRZ?!?! That's impressive! You've probably got more ground clearance than my Wee-Strom, and the group-think on the V-Strom forum that I also frequent is that you've really got to have no fear (or else you're body position is all screwed up) to touch a knee on the Strom.

    I've dragged my pegs in the corners on the street a handful of times, but I've yet to touch a knee...which is a good thing since even my leathers don't have knee pucks like the real sport-bike guys wear :)
  17. Harvey Krumpet

    Harvey Krumpet Been here awhile

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    No,no, no! I haven't got my eights sorted yet!:clap

    While I think on. As per my posts above, is using the front brake to achieve full lock a viable / correct technique or a recipe for disaster? It works a treat but excuse the pun, I can see a downside..
  18. TheWall

    TheWall 0 miles and counting

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    There's some good food for thought in this post (as well as some of the follow-up comments) about braking in a turn. It's directed more at road/track riders than gymkhana riders, but the bike doesn't know if you are on the street, on a track or on a gymkhana course :) I've been playing with braking in turns during my daily commute, but very, very tentatively :deal
  19. Harvey Krumpet

    Harvey Krumpet Been here awhile

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    I did some advanced tuition a wee while ago & one of the things we practiced was braking in a curve. Once we had the technique down it was quite amazing how hard you can brake. Part of it was counter, counter steering to stop the bike tightening it's curve & enabling us to change line in the corner while braking. The session was aimed at avoiding Mr & Mrs Myopia or their dog while road riding.
    Cheers for the link.
  20. Harvey Krumpet

    Harvey Krumpet Been here awhile

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    This needs to be translated, I think it may be a bit about technique & bike set up before the actual Gymkhana. Vulfy is the 3rd or 4th rider up, yellow DR:rofl


    <iframe width="420" height="315" src="http://www.youtube.com/embed/PnYqSQ1Nk-Q" frameborder="0" allowfullscreen></iframe>