[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.vigan.cz\/vliv-prumeru-motocyklovych-rafku-na-jizdni-vlastnosti\/#Article","mainEntityOfPage":"https:\/\/www.vigan.cz\/vliv-prumeru-motocyklovych-rafku-na-jizdni-vlastnosti\/","headline":"Vliv pr\u016fm\u011bru motocyklov\u00fdch r\u00e1fk\u016f na j\u00edzdn\u00ed vlastnosti","name":"Vliv pr\u016fm\u011bru motocyklov\u00fdch r\u00e1fk\u016f na j\u00edzdn\u00ed vlastnosti","description":"Velikost r\u00e1fk\u016f je \u010dasto prob\u00edr\u00e1na v motoristick\u00fdch f\u00f3rech, lid\u00e9 debatuj\u00ed o tom, co preferuj\u00ed, a pro\u010d. Jde toti\u017e o to, \u017ee na rozd\u00edl od automobil\u016f, kde rozm\u011br kola nehraje a\u017e<p><a href=\"https:\/\/www.vigan.cz\/vliv-prumeru-motocyklovych-rafku-na-jizdni-vlastnosti\/\" class=\"more-link\">P\u0159e\u010d\u00edst \u010dl\u00e1nek<span class=\"screen-reader-text\">Vliv pr\u016fm\u011bru motocyklov\u00fdch r\u00e1fk\u016f na j\u00edzdn\u00ed vlastnosti<\/span><\/a><\/p>","datePublished":"2018-05-12","dateModified":"2018-05-12","author":{"@type":"Person","@id":"https:\/\/www.vigan.cz\/author\/#Person","name":"","url":"https:\/\/www.vigan.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/093836c6bc976bea6a4c3cd39f9136c261430c33201aa865249fef2be34e3fdb?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/093836c6bc976bea6a4c3cd39f9136c261430c33201aa865249fef2be34e3fdb?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"vigan.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.vigan.cz\/wp-content\/uploads\/img_a316943_w2538_t1527757845.jpg","url":"https:\/\/www.vigan.cz\/wp-content\/uploads\/img_a316943_w2538_t1527757845.jpg","height":0,"width":0},"url":"https:\/\/www.vigan.cz\/vliv-prumeru-motocyklovych-rafku-na-jizdni-vlastnosti\/","about":["Spole\u010dnost"],"wordCount":438,"articleBody":" Velikost r\u00e1fk\u016f je \u010dasto prob\u00edr\u00e1na v motoristick\u00fdch f\u00f3rech, lid\u00e9 debatuj\u00ed o tom, co preferuj\u00ed, a pro\u010d. Jde toti\u017e o to, \u017ee na rozd\u00edl od automobil\u016f, kde rozm\u011br kola nehraje a\u017e tak z\u00e1sadn\u00ed roli, mus\u00ed jezdec na motorce \u0159e\u0161it n\u00e1por fyzik\u00e1ln\u00edch sil v souvislosti s n\u00e1klonem, aerodynamikou, setrva\u010dnost\u00ed \u2013 sou\u010dtem odst\u0159ediv\u00fdch sil, p\u0159ilnavost\u00ed a odporem v\u016f\u010di vozovce. Ka\u017ed\u00e1 mali\u010dkost se tu projev\u00ed zna\u010dnou m\u011brou. Ostatn\u011b, n\u011bco podobn\u00e9ho \u0159e\u0161\u00ed i cyklist\u00e9. Jak\u00e9 vlivy p\u016fsob\u00ed na motocyklov\u00e1 kola Ter\u00e9nn\u00ed nerovnosti \u010c\u00edm men\u0161\u00ed pr\u016fm\u011br r\u00e1fku, t\u00edm v\u011bt\u0161\u00ed probl\u00e9my p\u0159i zdol\u00e1v\u00e1n\u00ed nerovnost\u00ed. P\u0159edstavte si v\u00fdmol na vozovce (a to nen\u00ed ojedin\u011bl\u00fd p\u0159\u00edpad okresn\u00edch silni\u010dek), kter\u00fd m\u00e1 v pr\u016fm\u011bru zhruba 10 cm. Kola o velikosti deseti palc\u016f (25,4 cm) zapadnou do d\u00edry tak, \u017ee to m\u016f\u017ee znamenat v\u00e1\u017enou nehodu. Jednadvacetipalcov\u00e9 obut\u00ed (53 cm) si s n\u011b\u010d\u00edm takov\u00fdm porad\u00ed tak\u0159ka hrav\u011b.Gyroskopick\u00fd efekt Pr\u016fm\u011br kol sice \u0159e\u0161\u00ed pohyb na silnici v\u016f\u010di nerovn\u00fdm povrch\u016fm, ov\u0161em nelze jej natahovat do extr\u00e9mu. Omezen\u00edm nen\u00ed pouh\u00e1 konstrukce vidlic a r\u00e1mu stroje, ale tak\u00e9 tzv. gyroskopick\u00fd efekt. Jde o to, \u017ee \u010d\u00edm v\u011bt\u0161\u00ed pr\u016fm\u011br kruhu se odvaluje po p\u0159\u00edmce, t\u00edm h\u016f\u0159e se ovl\u00e1d\u00e1 jeho pohyb. Velk\u00e9 pr\u016fm\u011bry pneumatik sice usnad\u0148uj\u00ed udr\u017eet na silnici pot\u0159ebnou rovnov\u00e1hu, ale z\u00e1rove\u0148 jsou tato vozidla h\u016f\u0159e ovladateln\u00e1. Vhodn\u00fd kompromis U motorek plat\u00ed jedna z\u00e1sada. V\u017edy se sna\u017ete naj\u00edt ide\u00e1ln\u00ed kompromis , co se t\u00fd\u010de rozm\u011bru kol. Pro m\u011bstsk\u00fd provoz a kli\u010dkov\u00e1n\u00ed v mal\u00fdch uli\u010dk\u00e1ch a v z\u00e1cp\u00e1ch se hod\u00ed mal\u00e9 sk\u00fatry se 13 (p\u0159\u00edpadn\u011b 16) palcov\u00fdmi r\u00e1fky, opa\u010dn\u00fdm extr\u00e9mem pohodl\u00ed typick\u00e9 offroad j\u00edzdy je p\u0159edn\u00edch 21 palc\u016f. Cestovn\u00ed a sportovn\u00ed motocykly nej\u010dast\u011bji obouvaj\u00ed kola 17 palcov\u00e1, p\u0159edev\u0161\u00edm kv\u016fli lep\u0161\u00ed schopnosti v\u00e9st stroje v zat\u00e1\u010dk\u00e1ch. Ide\u00e1lem motokrosov\u00fdch speci\u00e1l\u016f jsou devaten\u00e1ctky vp\u0159edu a \u010dastokr\u00e1t osmn\u00e1ctky vzadu. V potaz se tak\u00e9 bere typ ter\u00e9nu, p\u0159i j\u00edzd\u011b v p\u00edsku a na zemin\u011b u motokrosov\u00e9 motorky nehroz\u00ed takov\u00e9 riziko po\u0161kozen\u00ed r\u00e1fku a lze nasadit t\u0159eba devaten\u00e1ctku. Zato v kamenit\u00e9m podlo\u017e\u00ed je ide\u00e1lem sp\u00ed\u0161 osmn\u00e1ctka, kter\u00e1 umo\u017e\u0148uje nasadit \u0161ir\u0161\u00ed a hlavn\u011b vy\u0161\u0161\u00ed profil pneumatiky.                                                                                                                                                                                                                                                                                                                                                                                                "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Vliv pr\u016fm\u011bru motocyklov\u00fdch r\u00e1fk\u016f na j\u00edzdn\u00ed vlastnosti","item":"https:\/\/www.vigan.cz\/vliv-prumeru-motocyklovych-rafku-na-jizdni-vlastnosti\/#breadcrumbitem"}]}]