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rider leans inwards, the bike leans outwards a bit. Due to steering geometry as explained in this Wiki article, that outwards lean of the bike cause the front tire to steer outwards, an indirect form of counter-steering. For normal counter-steering a rider applies an outwards torque onto the handlebars, and doesn't try to hold the handlebars in place. The outwards torque on the handlebars causes the bike to lean inwards, and the steering geometry will steer the front tire inwards as needed if the rider doesn't oppose it. Since the steering response to lean is designed to correct a lean and return the bike to vertical, the rider needs to continue to apply some outwards torque onto the handlebars to prevent the bike from returning to vertical and instead hold a lean angle.
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word, I didn't see this explained in quite this way, and I think it should be. I can't speak for motorcyclists, but cyclists use this maneuver to make their turns wider and more gentle, thereby remaining in control, which would be more difficult if taking a sharper turn. Indeed, a true 90-degree turn isn't even possible on any vehicle, whether it has 2 wheels or 4 wheels. -- Knowledge-hating former member
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on many motorcycles, the braking force applied to the contact patch offset to the inside of the front tire also causes it to steer inwards, requiring the rider to apply more outwards torque on the handlebars to hold a lean angle while braking. To avoid over-leaning, riders should reduce this outwards torque a bit ahead of reducing braking effort.
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That video has a major flaw. Since a motorcycle is a uni-track vehicle, there is no way to cause it to lean directly by weight shifting. Since it is a uni-track vehicle free to pivot left right about the contact patches, the center of mass of rider and bike do not move absent external forces: if the
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Most bikes and motorcycles steering geometry tend to steer inwards enough to lessen lean angle and return to vertical. Mostly noticeable on a motorcycle, a rider has to apply some outwards torque on the handlebars to oppose this self-correction in order to hold a lean angle. If braking while leaned
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This section makes no mention of the effect of trail. Some sport motorcycles have reduced trail, and on these bikes, attempting to countersteer by weight shifting only produces enough lean to perhaps change lanes on a road, but not enough to corner normally. This can be seen with the original Keith
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I ride a bicycle. The reason a cyclist turns left momentarily before navigating a right turn (as when turning right onto a side street) is to allow the cyclist to turn right in a wider arc than if he tried to follow the curb. Given that I skimmed portions of the article instead of reading every
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No, that's just a way of increasing the turn radius, it's not what is meant by countersteering. To do the maneuver you're describing (a short left turn before a long right turn), you first need to countersteer RIGHT lightly to make the bike lean left and start the short left turn, then you
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countersteer LEFT more heavily to both upright the bike and then lean right, which will make the bike will turn right "by itself". Finally you countersteer RIGHT one last time to upright the bike after the turn.
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The article focuses on initiating lean from a vertical orientation, but somewhere it should generalize this for counter-steering while leaned, steer more inwards to lean less, steer less inwards to lean more.
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1544:. I did not check the physics in the video but they sound correct. The article gives only an equation for the required leaning angle but does not describe the forces of the wheels; the video does. (
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How can a single reference claim that no scientific article exists that does provide a clear and comprehensive definition of countersteering?
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gives better (at least better-sounding) explanation of counter-steering and clearly states it is instable and something to learn.
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is a better article, but none of these 3 actually explains how spokes support the wheel pre-stressed w/compression.
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Probably redirect all these to a single-page history of this series. Main articles on each one later, if desired.
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Intro - "The scientific literature does not provide a clear and comprehensive definition of countersteering."
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on
Knowledge. If you would like to participate, please visit the project page, where you can join
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Knowledge. If you would like to participate, please visit the project page, where you can join
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Based on my experience and experimentation, I doubt that every child does this trick. The video
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Code "No BS (body steering)" green sport bike, since it apparently had very little trail.
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and related models such as the CR series. Is model code the clearest nomenclature to use?
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I agree. The physics are rather elementary. They are described in much more detail in
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The following pages have many redlinks that need articles written:
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with statement explaining not to be confused with 1999 YZF-R7
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chopper). This could also be expanded into a bio of
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need information moved to more appropriate articles
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506:CRP Energica
484:(redirect) (
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345:Sara Liberte
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42:WikiProjects
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1012:Kawasaki Z1
975:Hurt Report
960:Endurocross
940:Cycle World
920:Cagiva Mito
893:Bell Sports
873:Alpinestars
802:Could be a
543:Honda Dream
466:Bimota Tesi
220:To-do list:
1655:Categories
1325:Japanese:
1319:Japanese:
1313:Japanese:
1246:See also:
1052:Motobécane
1037:Marchesini
883:Arlen Ness
828:says only
751:Motorcycle
721:Dirt Rider
708:Arlen Ness
589:Ambassador
486:Easy Rider
387:SC-Project
334:(redirect)
277:See also:
1406:Archive 3
1401:Archive 2
1396:Archive 1
1342:BMW C 400
1315:みづほ自動車製作所
1307:Italian:
1301:Italian:
1140:Zach Ness
1057:MotoCzysz
930:Cory Ness
820:Velocette
783:Matchless
698:Motus MST
1585:contribs
1573:unsigned
1461:unsigned
1434:120 days
1384:Archives
1027:Kreidler
848:Copyedit
778:Malaguti
723:magazine
593:Eldorado
528:article)
526:Panigale
524:(add to
1552:undated
1145:Zündapp
734:Cleanup
678:at the
457:Bikes:
234:history
207:on the
95:Cycling
86:cycling
61:Cycling
32:B-class
1639:Rcgldr
1619:Rcgldr
1598:Rcgldr
1529:Rcgldr
1510:Rcgldr
1309:Sertum
1254:Bigtoe
1232:images
1204:Wikify
1193:Update
1183:* See
1129:Yamaha
1073:Öhlins
970:Gilera
905:Brembo
859:Expand
468:series
38:scale.
1321:目黒製作所
1303:Paton
1284:Satra
1240:stubs
1238:Most
1214:Other
1178:Stubs
1156:Merge
1093:Shoei
945:Derbi
244:purge
239:watch
1643:talk
1623:talk
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1327:宮田工業
1167:NPOV
1078:Ossa
539:1958
229:edit
199:High
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