{"id":44018,"date":"2023-05-12T11:00:00","date_gmt":"2023-05-12T09:00:00","guid":{"rendered":"https:\/\/www.siroko.com\/blog\/c\/?p=44018"},"modified":"2023-05-09T15:42:44","modified_gmt":"2023-05-09T13:42:44","slug":"geometrie-kola-zaklady","status":"publish","type":"post","link":"https:\/\/www.siroko.com\/blog\/c\/cs\/geometrie-kola-zaklady\/","title":{"rendered":"Geometrie kola: z\u00e1klady"},"content":{"rendered":"\n<p>Geometrie sice nen\u00ed prvn\u00ed v\u011bc\u00ed, na kterou bychom p\u0159i v\u00fdb\u011bru kola mysleli, nicm\u00e9n\u011b ur\u010dit\u011b bychom j\u00ed m\u011bli v\u011bnovat pozornost, nebo\u0165 zna\u010dn\u011b ovliv\u0148uje odezvu, pohodl\u00ed i ovladatelnost. \u00dahel hlavov\u00e9 trubky, d\u00e9lka horn\u00ed r\u00e1mov\u00e9 trubky, v\u00fd\u0161ka st\u0159edov\u00e9 osy nebo tzv. hodnota \u201creach a stack\u201d &#8211; to v\u0161e m\u00e1 dopad na rozlo\u017een\u00ed v\u00e1hy jezdce, odezvu kola v zat\u00e1\u010dk\u00e1ch, dr\u017een\u00ed rovnov\u00e1hy p\u0159i rychl\u00e9 j\u00edzd\u011b, ale tak\u00e9 na pohodl\u00ed a plynulost j\u00edzdy. Poj\u010fme se na v\u0161echny tyto body pod\u00edvat podrobn\u011bji:<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><strong>\u00dahel hlavov\u00e9 trubky<\/strong><\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"1100\" height=\"613\" src=\"https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-2.png\" alt=\"\" class=\"wp-image-43889\" title=\"\" srcset=\"https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-2.png 1100w, https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-2-640x357.png 640w, https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-2-768x428.png 768w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" \/><\/figure>\n<\/div>\n\n\n<p>M\u011b\u0159\u00ed sklon hlavov\u00e9 trubky, kter\u00e1 spojuje \u0159\u00edd\u00edtka s vidlic\u00ed. \u010c\u00edm je \u00fahel v\u011bt\u0161\u00ed, t\u00edm bude p\u0159edn\u00ed \u010d\u00e1st kola rychlej\u0161\u00ed a leh\u010d\u00ed, ale z\u00e1rove\u0148 tak\u00e9 m\u00e9n\u011b stabiln\u00ed a j\u00edzda nebude tak pohodln\u00e1. \u0160ir\u0161\u00ed \u00fahel se skv\u011ble hod\u00ed pro j\u00edzdy v technick\u00e9m ter\u00e9nu a na z\u00e1vody. Pokud je naopak \u00fahel men\u0161\u00ed, kolo pak bude stabiln\u011bj\u0161\u00ed a pohodln\u011bj\u0161\u00ed, nicm\u00e9n\u011b ztrat\u00ed n\u011bco na mr\u0161tnosti a odezv\u011b. U\u017e\u0161\u00ed \u00fahel je ide\u00e1ln\u00ed pro poklidn\u011bj\u0161\u00ed zp\u016fsob j\u00edzdy.&nbsp;<\/p>\n\n\n\n<p>Silni\u010dn\u00ed kola m\u00edvaj\u00ed \u00fahel zhruba 70-73\u00b0, aby mohl cyklista dob\u0159e manipulovat s \u0159\u00edd\u00edtky, snadno zrychlovat a plynule jezdit do kopc\u016f. Sjezdov\u00e1 kola pak m\u00edvaj\u00ed \u00fahel kolem 63\u00b0, d\u00edky \u010demu\u017e poskytuj\u00ed stabilitu p\u0159i sjezdech a na technick\u00fdch trailech, aby nedoch\u00e1zelo k p\u0159epad\u00e1v\u00e1n\u00ed p\u0159es \u0159\u00edd\u00edtka.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><strong>D\u00e9lka hlavov\u00e9 trubky<\/strong><\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1200\" height=\"801\" src=\"https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-10.png\" alt=\"\" class=\"wp-image-43987\" title=\"\" srcset=\"https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-10.png 1200w, https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-10-640x427.png 640w, https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-10-768x513.png 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p>D\u00e9lka ji\u017e zm\u00edn\u011bn\u00e9 hlavov\u00e9 trubky bude m\u00edt zna\u010dn\u00fd dopad na hodnotu \u201cstacku\u201d, ke kter\u00e9mu se je\u0161t\u011b pozd\u011bji vr\u00e1t\u00edme. Del\u0161\u00ed hlavov\u00e1 trubka bude m\u00edt za n\u00e1sledek vy\u0161\u0161\u00ed \u0159\u00edd\u00edtka, a t\u00edm i uvoln\u011bn\u011bj\u0161\u00ed dr\u017een\u00ed t\u011bla na kole. To je u vytrvalostn\u00edch silni\u010dn\u00edch kol pom\u011brn\u011b d\u016fle\u017eit\u00e1 vlastnost. Oproti tomu \u010dasovk\u00e1\u0159sk\u00e1 kola m\u00edvaj\u00ed kv\u016fli aerodynamice o pozn\u00e1n\u00ed men\u0161\u00ed trubky.<\/p>\n\n\n\n<p>D\u00e9lku hlavov\u00e9 trubky nelze zmen\u0161it, ale jde ji prodlou\u017eit p\u0159id\u00e1n\u00edm spacer\u016f (podlo\u017eek) na vidlici. To se sice nedoporu\u010duje, ale je to mo\u017en\u00e9, pokud trubka nebyla p\u0159edt\u00edm zkr\u00e1cena.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><strong>Velikost stopy a p\u0159edsazen\u00ed vidlice<\/strong><\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-5.png\" alt=\"\" class=\"wp-image-43917\" title=\"\" srcset=\"https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-5.png 1024w, https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-5-640x360.png 640w, https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-5-768x432.png 768w, https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-5-740x416.png 740w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>Ob\u011b hodnoty spolu navz\u00e1jem souvis\u00ed:<\/p>\n\n\n\n<p>Stopa je vzd\u00e1lenost mezi osou \u0159\u00edzen\u00ed a bodem, kde se p\u0159edn\u00ed kolo dot\u00fdk\u00e1 zem\u011b. Tuto vzd\u00e1lenost ur\u010duje \u00fahel hlavov\u00e9 trubky a jej\u00ed d\u00e9lka.&nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<p>P\u0159edsazen\u00ed (offset) vidlice je vzd\u00e1lenost mezi st\u0159edem p\u0159edn\u00edho kola a osou \u0159\u00edzen\u00ed. P\u0159edsazen\u00ed lze vyu\u017e\u00edt jak ke zkr\u00e1cen\u00ed, tak k prodlou\u017een\u00ed d\u00e9lky stopy, ani\u017e by bylo nutn\u00e9 m\u011bnit \u00fahel osy \u0159\u00edzen\u00ed. Rovn\u011b\u017e jej lze vyu\u017e\u00edt k \u00faprav\u011b velikosti rozvoru (vzd\u00e1lenost mezi osami obou kol). V\u011bt\u0161\u00ed p\u0159edsazen\u00ed zkracuje stopu a naopak.<\/p>\n\n\n\n<p>Ob\u011b hodnoty ovliv\u0148uj\u00ed odezvu kola a jeho ovladatelnost. \u0160ir\u0161\u00ed stopa zvy\u0161uje stabilitu kola p\u0159i vysok\u00fdch rychlostech, ale zhor\u0161uje jeho ovladatelnost p\u0159i pomalej\u0161\u00ed j\u00edzd\u011b. Oproti tomu men\u0161\u00ed rozte\u010d kol zlep\u0161uje mr\u0161tnost a svi\u017enost p\u0159edn\u00ed \u010d\u00e1sti kola, nicm\u00e9n\u011b m\u016f\u017ee negativn\u011b ovlivnit stabilitu p\u0159i vy\u0161\u0161\u00edch rychlostech.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><strong>D\u00e9lka horn\u00ed r\u00e1mov\u00e9 trubky<\/strong><\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"650\" height=\"424\" src=\"https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-4.png\" alt=\"\" class=\"wp-image-43903\" title=\"\" srcset=\"https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-4.png 650w, https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-4-640x417.png 640w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/figure>\n<\/div>\n\n\n<p>Tato hodnota je vymezena vzd\u00e1lenost\u00ed mezi hlavovou trubkou a sedlovou trubkou. Lze ji vn\u00edmat dv\u011bma r\u016fzn\u00fdmi zp\u016fsoby: jednak jako skute\u010dnou d\u00e9lku horn\u00ed r\u00e1mov\u00e9 trubky, ale tak\u00e9 jako tzv. efektivn\u00ed d\u00e9lku hlavov\u00e9 trubky, co\u017e je vodorovn\u00e1 osa vedouc\u00ed od vrchn\u00ed \u010d\u00e1sti hlavov\u00e9 trubky k horn\u00ed \u010d\u00e1sti sedlov\u00e9 trubky. Prvn\u00ed zp\u016fsob vn\u00edm\u00e1n\u00ed byl \u010dast\u011bj\u0161\u00ed p\u0159ed n\u00e1stupem ze\u0161ikmen\u00fdch hlavov\u00fdch trubek, nicm\u00e9n\u011b dnes pou\u017e\u00edv\u00e1 sp\u00ed\u0161e ten druh\u00fd.<\/p>\n\n\n\n<p>Obecn\u011b vzato lze \u0159\u00edct, \u017ee kolo s krat\u0161\u00ed horn\u00ed r\u00e1movou trubkou bude mr\u0161tn\u011bj\u0161\u00ed a l\u00e9pe se s n\u00edm bude man\u00e9vrovat, zat\u00edmco kolo s del\u0161\u00ed hlavovou trubkou bude stabiln\u011bj\u0161\u00ed a pohodln\u011bj\u0161\u00ed p\u0159i del\u0161\u00edch proj\u00ed\u017e\u010fk\u00e1ch.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Reach<\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"999\" height=\"548\" src=\"https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-3.png\" alt=\"\" class=\"wp-image-43888\" title=\"\" srcset=\"https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-3.png 999w, https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-3-640x351.png 640w, https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-3-768x421.png 768w\" sizes=\"(max-width: 999px) 100vw, 999px\" \/><\/figure>\n<\/div>\n\n\n<p>Tzv. \u201creach\u201d znamen\u00e1 vodorovnou vzd\u00e1lenost mezi st\u0159edovou osou (ve svisl\u00e9 linii) a vrchn\u00ed \u010d\u00e1st\u00ed hlavov\u00e9 trubky. Jeho hodnota ovliv\u0148uje vzd\u00e1lenost mezi sedlem a \u0159\u00edd\u00edtky, a t\u00edm i pozici jezdce. Obecn\u011b lze \u0159\u00edct, \u017ee \u010d\u00edm del\u0161\u00ed reach, t\u00edm rozta\u017een\u011bj\u0161\u00ed a ni\u017e\u0161\u00ed pozice. Krat\u0161\u00ed reach naopak zp\u016fsob\u00ed vzp\u0159\u00edmen\u011bj\u0161\u00ed a pevn\u011bj\u0161\u00ed posez.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Stack<\/strong><\/h2>\n\n\n\n<p>Stack odkazuje na v\u00fd\u0161ku r\u00e1mu kola a m\u011b\u0159\u00ed se od st\u0159edov\u00e9 osy k hlavov\u00e9 trubce. Jde tedy o m\u011b\u0159en\u00ed stejn\u00fdch bod\u016f jako u hodnoty reach, tentokr\u00e1t ov\u0161em svisle. Jde o skute\u010dnou v\u00fd\u0161ku r\u00e1mu, p\u0159i\u010dem\u017e vy\u0161\u0161\u00ed stack znamen\u00e1 vzp\u0159\u00edmen\u011bj\u0161\u00ed pozici jezdce, zat\u00edmco ni\u017e\u0161\u00ed stack zvy\u0161uje aerodynamiku posezu.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1276\" height=\"775\" src=\"https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-9-1276x775.png\" alt=\"\" class=\"wp-image-43973\" title=\"\" srcset=\"https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-9-1276x775.png 1276w, https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-9-640x389.png 640w, https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-9-768x466.png 768w, https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-9.png 1288w\" sizes=\"(max-width: 1276px) 100vw, 1276px\" \/><\/figure>\n\n\n\n<p>Jak u\u017e jsme zmi\u0148ovali v odstavci o d\u00e9lce hlavov\u00e9 trubky, stack lze zv\u00fd\u0161it pomoc\u00ed spacer\u016f (podlo\u017eek) na vidlici, p\u0159\u00edpadn\u011b zmen\u0161it sn\u00ed\u017een\u00edm p\u0159edstavce.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><strong>\u00dahel sedlov\u00e9 trubky<\/strong><\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1200\" height=\"831\" src=\"https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-8.png\" alt=\"\" class=\"wp-image-43954\" title=\"\" srcset=\"https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-8.png 1200w, https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-8-640x443.png 640w, https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-8-768x532.png 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p>Tento \u00fahel m\u011b\u0159\u00ed sklon od sedlov\u00e9 trubky k zemi. \u010c\u00edm v\u011bt\u0161\u00ed je, t\u00edm bude \u0161lap\u00e1n\u00ed obratn\u011bj\u0161\u00ed a efektivn\u011bj\u0161\u00ed a z\u00e1rove\u0148 dojde k p\u0159edsunut\u011bj\u0161\u00edmu dr\u017een\u00ed t\u011bla, co\u017e je u\u017eite\u010dn\u00e9 zejm\u00e9na p\u0159i stoup\u00e1n\u00edch. Men\u0161\u00ed \u00fahel naopak posune t\u011b\u017ei\u0161t\u011b jezdce v\u00edc dozadu, co\u017e ocen\u00edte p\u0159edev\u0161\u00edm p\u0159i dlouh\u00fdch vyj\u00ed\u017e\u010fk\u00e1ch. Nav\u00edc t\u00edm zv\u00fd\u0161\u00edte stabilitu a ovladatelnost kola p\u0159i sjezdech.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><strong>Rozvor<\/strong><\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-7.png\" alt=\"\" class=\"wp-image-43942\" title=\"\"><\/figure>\n<\/div>\n\n\n<p>Rozvor je vzd\u00e1lenost mezi osami p\u0159edn\u00edho a zadn\u00edho kola. Hodn\u011b ovliv\u0148uje stabilitu a ovladatelnost bicyklu. Men\u0161\u00ed vzd\u00e1lenost vede k obratn\u011bj\u0161\u00edmu a snaz\u0161\u00edmu man\u00e9vrov\u00e1n\u00ed, ale z\u00e1rove\u0148 hroz\u00ed nestabilita p\u0159i vy\u0161\u0161\u00edch rychlostech. V\u011bt\u0161\u00ed vzd\u00e1lenost mezi osami naopak zaru\u010duje pohodl\u00ed a stabilitu, co\u017e pozitivn\u011b ovlivn\u00ed rychlost a kontrolu nad kolem p\u0159i j\u00edzd\u011b po nerovn\u00fdch trat\u00edch. M\u016f\u017ee se v\u0161ak zhor\u0161it ovladatelnost.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><strong>D\u00e9lka \u0159et\u011bzov\u00e9 vzp\u011bry<\/strong><\/strong><\/h2>\n\n\n\n<p>Jde o vzd\u00e1lenost mezi osou zadn\u00edho kola a st\u0159edovou osou. Krat\u0161\u00ed \u0159et\u011bzov\u00e1 vzp\u011bra zvy\u0161uje efektivitu \u0161lap\u00e1n\u00ed, nebo\u0165 zlep\u0161uje p\u0159enos energie. Krom\u011b toho se d\u00edky v\u011bt\u0161\u00edmu zat\u00ed\u017een\u00ed zadn\u00edho kola zlep\u0161uje jeho trakce. D\u00edky tomu se zlep\u0161\u00ed odezva i akcelerace kola, kter\u00e9 bude mr\u0161tn\u011bj\u0161\u00ed a rovn\u011b\u017e se bude l\u00e9pe ovl\u00e1dat p\u0159i stoup\u00e1n\u00edch a na rovin\u011b.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-provider-youtube wp-block-embed-youtube\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"nv-iframe-embed\"><iframe loading=\"lazy\" title=\"Veer Cycle - How to Measure Chainstay Length\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/syF3PNmrecI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n\n\n\n<p><br>Del\u0161\u00ed \u0159et\u011bzov\u00e1 vzp\u011bra naopak zlep\u0161\u00ed stabilitu a kontrolu nad kolem p\u0159i sjezdech, a nav\u00edc bude kolo l\u00e9pe tlumit n\u00e1razy, co\u017e povede k pohodln\u011bj\u0161\u00ed j\u00edzd\u011b.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><strong>V\u00fd\u0161ka st\u0159edov\u00e9 osy<\/strong><\/strong><\/h2>\n\n\n\n<p>Jde o vzd\u00e1lenost mezi st\u0159edovou osou a zem\u00ed. Ovliv\u0148uje zejm\u00e9na stabilitu kola a jeho odezvu v zat\u00e1\u010dk\u00e1ch \u010di p\u0159i vyh\u00fdb\u00e1n\u00ed se p\u0159ek\u00e1\u017ek\u00e1m. Rovn\u011b\u017e ale hraje d\u016fle\u017eitou roli v tom, kde bude um\u00edst\u011bno t\u011b\u017ei\u0161t\u011b jezdce a jak \u00fa\u010dinn\u00e9 bude \u0161lap\u00e1n\u00ed.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"601\" height=\"400\" src=\"https:\/\/www.siroko.com\/blog\/c\/app\/uploads\/2023\/05\/image-6.png\" alt=\"\" class=\"wp-image-43931\" title=\"\"><\/figure>\n<\/div>\n\n\n<p>Men\u0161\u00ed v\u00fd\u0161ka zlep\u0161uje stabilitu jezdce, a to zejm\u00e9na v zat\u00e1\u010dk\u00e1ch. Vy\u0161\u0161\u00ed vzd\u00e1lenost naopak stabilitu kola zhor\u0161uje.&nbsp;<\/p>\n\n\n\n<p>Na z\u00e1v\u011br m\u016f\u017eeme \u0159\u00edct, \u017ee geometrie hraje kl\u00ed\u010dovou roli p\u0159i ovl\u00e1d\u00e1n\u00ed kola a jeho reakci na pohyby. Dnes jsme se zab\u00fdvali z\u00e1kladn\u00edmi term\u00edny, kter\u00e9 jsou shodn\u00e9 pro v\u0161echna kola, ale m\u011bjte na pam\u011bti, \u017ee existuj\u00ed i jin\u00e9 druhy geometri\u00ed. Nap\u0159\u00edklad n\u011bkter\u00e1 silni\u010dn\u00ed kola jsou navr\u017eena sp\u00ed\u0161e pro z\u00e1vod\u011bn\u00ed, kde\u017eto jin\u00e1 se hod\u00ed pro poklidn\u011bj\u0161\u00ed zp\u016fsob j\u00edzdy. U horsk\u00fdch kol je to podobn\u00e9; tam jsou zase n\u011bkter\u00e9 modely ur\u010deny ke sjezd\u016fm, zat\u00edmco jin\u00e9 jsou pon\u011bkud univerz\u00e1ln\u011bj\u0161\u00ed (nap\u0159\u00edklad trailov\u00e1 kola).&nbsp;<\/p>\n\n\n\n<p>P\u0159i v\u00fdb\u011bru kola byste si tak m\u011bli polo\u017eit ot\u00e1zku, na co ho budete pou\u017e\u00edvat a po jak\u00e9m ter\u00e9nu budete jezdit, ale rovn\u011b\u017e byste m\u011bli br\u00e1t v \u00favahu i sv\u00e9 osobn\u00ed preference. Pakli\u017ee se st\u00e1le nem\u016f\u017eete rozhodnout, vyhledejte radu odborn\u00edka a vyzkou\u0161ejte si r\u016fzn\u00e9 modely, abyste zjistili, co doopravdy chcete. U velikosti kola koukejte p\u0159edev\u0161\u00edm na hodnoty stack a reach. Ostatn\u00ed rozm\u011bry geometrie jsou p\u0159i v\u00fdb\u011bru vhodn\u00e9ho kola druhotn\u00e9.&nbsp;<\/p>\n\n\n\n<p>Obecn\u011b \u0159e\u010deno, geometrie kola by m\u011bla b\u00fdt natolik vyv\u00e1\u017een\u00e1, aby poskytovala kombinaci dobr\u00e9 stability, snadn\u00e9ho ovl\u00e1d\u00e1n\u00ed a pohodl\u00ed. Je v\u0161ak t\u0159eba myslet na to, \u017ee n\u011bkter\u00e9 discipl\u00edny vy\u017eaduj\u00ed speci\u00e1ln\u00ed geometrii. Nav\u00edc je prakticky nemo\u017en\u00e9 naj\u00edt dokonal\u00e9 kolo pro ka\u017ed\u00fd povrch a do v\u0161ech podm\u00ednek.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Geometrie sice nen\u00ed prvn\u00ed v\u011bc\u00ed, na kterou bychom p\u0159i v\u00fdb\u011bru kola mysleli, nicm\u00e9n\u011b ur\u010dit\u011b bychom j\u00ed m\u011bli v\u011bnovat pozornost, nebo\u0165 zna\u010dn\u011b ovliv\u0148uje odezvu, pohodl\u00ed i ovladatelnost. \u00dahel hlavov\u00e9 trubky, d\u00e9lka horn\u00ed r\u00e1mov\u00e9 trubky, v\u00fd\u0161ka st\u0159edov\u00e9 osy nebo tzv. hodnota \u201creach a stack\u201d &#8211; to v\u0161e m\u00e1 dopad na rozlo\u017een\u00ed v\u00e1hy jezdce, odezvu kola v zat\u00e1\u010dk\u00e1ch,&hellip;&nbsp;<\/p>\n<div class=\"read-more-wrapper\"><a href=\"https:\/\/www.siroko.com\/blog\/c\/cs\/geometrie-kola-zaklady\/\" class=\"button button-secondary\" rel=\"bookmark\">\u010ct\u011bte v\u00edce<span class=\"screen-reader-text\">Geometrie kola: z\u00e1klady<\/span><\/a><\/div>\n","protected":false},"author":1,"featured_media":44003,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","neve_meta_reading_time":"","_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[118,210],"tags":[],"class_list":["post-44018","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cyklistika","category-kola"],"_links":{"self":[{"href":"https:\/\/www.siroko.com\/blog\/c\/cs\/wp-json\/wp\/v2\/posts\/44018","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.siroko.com\/blog\/c\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.siroko.com\/blog\/c\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.siroko.com\/blog\/c\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.siroko.com\/blog\/c\/cs\/wp-json\/wp\/v2\/comments?post=44018"}],"version-history":[{"count":0,"href":"https:\/\/www.siroko.com\/blog\/c\/cs\/wp-json\/wp\/v2\/posts\/44018\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.siroko.com\/blog\/c\/cs\/wp-json\/wp\/v2\/media\/44003"}],"wp:attachment":[{"href":"https:\/\/www.siroko.com\/blog\/c\/cs\/wp-json\/wp\/v2\/media?parent=44018"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.siroko.com\/blog\/c\/cs\/wp-json\/wp\/v2\/categories?post=44018"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.siroko.com\/blog\/c\/cs\/wp-json\/wp\/v2\/tags?post=44018"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}