{"id":3620,"date":"2026-04-07T06:36:32","date_gmt":"2026-04-07T06:36:32","guid":{"rendered":"https:\/\/motorcyclechain.top\/?p=3620"},"modified":"2026-04-07T06:36:32","modified_gmt":"2026-04-07T06:36:32","slug":"standard-vs-reinforced-motorcycle-chain-h-grade-explained","status":"publish","type":"post","link":"https:\/\/motorcyclechain.top\/cs\/standard-vs-reinforced-motorcycle-chain-h-grade-explained\/","title":{"rendered":"Standardn\u00ed vs. zes\u00edlen\u00fd motocyklov\u00fd \u0159et\u011bz \u2013 vysv\u011btlen\u00ed t\u0159\u00eddy H"},"content":{"rendered":"

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Pr\u016fvodce srovn\u00e1n\u00edm<\/div>\n

Standardn\u00ed vs. zes\u00edlen\u00fd motocyklov\u00fd \u0159et\u011bz
\nVysv\u011btlen\u00ed H-stupn\u011b<\/span><\/h1>\n

\u0158et\u011bzy t\u0159\u00eddy H a standardn\u00ed \u0159et\u011bzy pasuj\u00ed na stejn\u00e1 ozuben\u00e1 kola. Jedin\u00fd fyzick\u00fd rozd\u00edl je v tlou\u0161\u0165ce plech\u016f \u2013 siln\u011bj\u0161\u00ed vnit\u0159n\u00ed a vn\u011bj\u0161\u00ed plechy, kter\u00e9 zvy\u0161uj\u00ed pevnost v tahu a odolnost proti \u00fanav\u011b. Ot\u00e1zkou je, zda v\u00fdkon va\u0161eho motoru skute\u010dn\u011b pot\u0159ebuje toto vylep\u0161en\u00ed.<\/p>\n

Viz standardn\u00ed a H-t\u0159\u00eddn\u00ed \u0159ady<\/a><\/p>\n<\/div>\n<\/div>\n

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Co vlastn\u011b znamen\u00e1 \u201eH-Grade\u201c v in\u017een\u00fdrsk\u00fdch term\u00ednech<\/h2>\n

Ozna\u010den\u00ed \u201eH\u201c v zes\u00edlen\u00fd motocyklov\u00fd \u0159et\u011bz<\/strong> \u010c\u00edslo (428H, 520H, 530H) ozna\u010duje \u0159et\u011bzy vyroben\u00e9 s v\u011bt\u0161\u00edmi vnit\u0159n\u00edmi a vn\u011bj\u0161\u00edmi desti\u010dkami, ne\u017e je standardn\u00ed specifikace, se stejnou rozte\u010d\u00ed a vnit\u0159n\u00ed \u0161\u00ed\u0159kou. V\u0161echno ostatn\u00ed na \u0159et\u011bzu \u2013 rozte\u010d, vnit\u0159n\u00ed \u0161\u00ed\u0159ka, pr\u016fm\u011br v\u00e1le\u010dk\u016f, pr\u016fm\u011br \u010depu, typ pouzdra \u2013 je shodn\u00e9 se standardn\u00edm ekvivalentem. \u0158et\u011bz pasuje na stejn\u00e1 ozuben\u00e1 kola. Jedinou fyzickou zm\u011bnou je materi\u00e1l desti\u010dky.<\/p>\n

Toto zv\u00fd\u0161en\u00ed tlou\u0161\u0165ky desti\u010dek m\u00e1 dva p\u0159\u00edm\u00e9 d\u016fsledky. Zaprv\u00e9, t\u011b\u017e\u0161\u00ed desti\u010dky poskytuj\u00ed v\u011bt\u0161\u00ed plochu pr\u016f\u0159ezu pro p\u016fsoben\u00ed tahov\u00e9ho zat\u00ed\u017een\u00ed \u2013 \u00fam\u011brn\u011b se zvy\u0161uje i pevnost \u0159et\u011bzu v tahu. Zadruh\u00e9, t\u011b\u017e\u0161\u00ed desti\u010dky maj\u00ed vy\u0161\u0161\u00ed tuhost v ohybu, co\u017e zlep\u0161uje odolnost proti \u00fanav\u011b materi\u00e1lu p\u0159i cyklick\u00e9m zat\u00ed\u017een\u00ed zub\u016f \u0159et\u011bzov\u00e9ho kola, kter\u00e9 se p\u0159i ka\u017ed\u00e9 ot\u00e1\u010dce zapojuj\u00ed a rozpojuj\u00ed.<\/p>\n

Praktick\u00fd d\u016fsledek: \u0159et\u011bz t\u0159\u00eddy H se stejnou rozte\u010d\u00ed jako standardn\u00ed ekvivalent je p\u0159\u00edm\u00fdm upgradem bez nutnosti dal\u0161\u00edch zm\u011bn. \u017d\u00e1dn\u00e1 nov\u00e1 ozuben\u00e1 kola, \u017e\u00e1dn\u00fd jin\u00fd hlavn\u00ed \u010dl\u00e1nek (hlavn\u00ed \u010dl\u00e1nek je slad\u011bn s variantou \u0159et\u011bzu dod\u00e1vanou s \u0159et\u011bzem), \u017e\u00e1dn\u00e9 \u00fapravy vyrovn\u00e1n\u00ed. P\u0159i v\u00fdm\u011bn\u011b \u0159et\u011bzu m\u016f\u017eete namontovat \u0159et\u011bz t\u0159\u00eddy H v\u0161ude, kam se hod\u00ed standardn\u00ed \u0159et\u011bz \u2013 za p\u0159edpokladu, \u017ee m\u00edrn\u011b v\u011bt\u0161\u00ed vn\u011bj\u0161\u00ed \u0161\u00ed\u0159ka \u0159et\u011bzu t\u0159\u00eddy H odpov\u00edd\u00e1 vod\u00edtk\u016fm \u0159et\u011bzu nebo nap\u00edna\u010d\u016fm na dan\u00e9m stroji.<\/p>\n<\/div>\n

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\"Standardn\u00ed<\/p>\n

Standardn\u00ed \u2013 nap\u0159. 428: vnit\u0159n\u00ed deska 1,60 mm, 17,8 kN<\/p>\n<\/div>\n

\"Zes\u00edlen\u00fd<\/p>\n

T\u0159\u00edda H \u2014 nap\u0159. 428H: vnit\u0159n\u00ed deska 2,03 mm, 20,6 kN<\/p>\n<\/div>\n<\/div>\n

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\u010c\u00edsla ud\u00e1vaj\u00edc\u00ed tlou\u0161\u0165ku plechu \u2013 co znamenaj\u00ed v praxi<\/h2>\n

Rozd\u00edl v tlou\u0161\u0165ce plechu mezi standardn\u00ed a H-grade nen\u00ed v absolutn\u00edch \u010d\u00edslech velk\u00fd \u2013 0,43 mm u vnit\u0159n\u00edho plechu z oceli 428 (2,03 vs 1,60 mm). Toto zv\u00fd\u0161en\u00ed tlou\u0161\u0165ky plechu u oceli 27% se v\u0161ak prom\u00edt\u00e1 do zv\u00fd\u0161en\u00ed pevnosti v tahu o 15,7% (20,6 vs 17,8 kN), proto\u017ee pevnost v tahu je ur\u010dena plochou plechu kolmou ke sm\u011bru zat\u00ed\u017een\u00ed. T\u011b\u017e\u0161\u00ed plech p\u0159isp\u00edv\u00e1 proporcion\u00e1ln\u011b v\u011bt\u0161\u00edm mno\u017estv\u00edm materi\u00e1lu pr\u016f\u0159ezu k p\u0159enesen\u00ed zat\u00ed\u017een\u00ed.<\/p>\n

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Velikost \u0159et\u011bzu<\/th>\nStandardn\u00ed vnit\u0159n\u00ed deska (mm)<\/th>\nVnit\u0159n\u00ed deska t\u0159\u00eddy H (mm)<\/th>\nStandardn\u00ed tah<\/th>\nPevnost v tahu t\u0159\u00eddy H<\/th>\nZv\u00fd\u0161en\u00ed pevnosti v tahu<\/th>\n<\/tr>\n<\/thead>\n
428 \/ 428H<\/td>\n1,60 mm<\/td>\n2,03 mm<\/td>\n17,8 kN<\/td>\n20,6 kN<\/td>\n+15.7%<\/td>\n<\/tr>\n
520 \/ 520H<\/td>\n1,80 mm<\/td>\n2,20 mm<\/td>\n26,5 kN<\/td>\n29,0 kN<\/td>\n+9.4%<\/td>\n<\/tr>\n
525 \/ 525H<\/td>\n1,80 mm<\/td>\n2,20 mm<\/td>\n26,5 kN<\/td>\n29,4 kN<\/td>\n+10.9%<\/td>\n<\/tr>\n
530 \/ 530H<\/td>\n1,80 mm<\/td>\n2,40 mm<\/td>\n26,5 kN<\/td>\n30,4 kN<\/td>\n+14.7%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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Pozn\u00e1mka ke kompatibilit\u011b:<\/strong> \u0158et\u011bzy t\u0159\u00eddy H ve stejn\u00e9 z\u00e1kladn\u00ed velikosti (nap\u0159. 428H vs. 428) jsou rozm\u011brov\u011b kompatibiln\u00ed se stejn\u00fdmi pastorky. M\u00edrn\u00e9 zv\u011bt\u0161en\u00ed tlou\u0161\u0165ky vn\u011bj\u0161\u00ed desti\u010dky nepatrn\u011b zv\u011bt\u0161uje celkovou vn\u011bj\u0161\u00ed \u0161\u00ed\u0159ku \u0159et\u011bzu \u2013 p\u0159ed mont\u00e1\u017e\u00ed se ujist\u011bte, \u017ee se v\u016fle dostane do vod\u00edtek \u0159et\u011bzu, nap\u00ednac\u00edch kladek nebo jezdc\u016f \u0159et\u011bzu integrovan\u00fdch v kyvn\u00e9 vidlici. U v\u011bt\u0161iny motocykl\u016f nen\u00ed v\u016fle t\u0159\u00eddy H probl\u00e9mem; u motocykl\u016f s velmi t\u011bsn\u00fdmi vod\u00edtky \u0159et\u011bzu to nejprve ov\u011b\u0159te.<\/p>\n<\/div>\n

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Standardn\u00ed vs. H-grade \u2013 \u00dapln\u00e9 srovn\u00e1n\u00ed<\/h2>\n
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Srovn\u00e1vac\u00ed bod<\/th>\nStandardn\u00ed \u0159et\u011bz<\/th>\n\u0158et\u011bz t\u0159\u00eddy H<\/th>\n<\/tr>\n<\/thead>\n
M\u011b\u0159idlo desky<\/td>\nStandardn\u00ed tlou\u0161\u0165ka<\/td>\nT\u011b\u017e\u0161\u00ed (nap\u0159. 428: +0,43 mm vnit\u0159n\u00ed)<\/td>\n<\/tr>\n
Pevnost v tahu<\/td>\n17,8 kN (p\u0159\u00edklad 428)<\/td>\n20,6 kN (428H \u2014 +15,7%)<\/td>\n<\/tr>\n
Odolnost proti \u00fanav\u011b<\/td>\nNorma<\/td>\nVylep\u0161en\u00e9 \u2013 t\u011b\u017e\u0161\u00ed desky odol\u00e1vaj\u00ed \u00fanav\u011b p\u0159i ohybu<\/td>\n<\/tr>\n
Typ pouzdra<\/td>\nZkroucen\u00fd<\/td>\nZkroucen\u00fd<\/td>\n<\/tr>\n
Typ t\u011bsn\u011bn\u00ed<\/td>\n\u017d\u00e1dn\u00e9 (neut\u011bsn\u011bn\u00e9)<\/td>\n\u017d\u00e1dn\u00e9 (neut\u011bsn\u011bn\u00e9)<\/td>\n<\/tr>\n
Interval maz\u00e1n\u00ed<\/td>\n400\u2013600 km<\/td>\n400\u2013600 km<\/td>\n<\/tr>\n
Kompatibilita ozuben\u00fdch kol<\/td>\nPasuje na standardn\u00ed ozuben\u00e1 kola<\/td>\nPasuje na stejn\u00e1 ozuben\u00e1 kola jako standard<\/td>\n<\/tr>\n
Hmotnost<\/td>\nSpodn\u00ed<\/td>\nO n\u011bco t\u011b\u017e\u0161\u00ed (pouze pro m\u011b\u0159ic\u00ed desky)<\/td>\n<\/tr>\n
Jednotkov\u00e1 cena<\/td>\nSpodn\u00ed<\/td>\nM\u00edrn\u011b vy\u0161\u0161\u00ed<\/td>\n<\/tr>\n
Lze zape\u010detiti?<\/td>\nPouze standardn\u00ed (bez t\u011bsn\u011bn\u00ed); upgrade na O\/X-krou\u017eek vym\u011bn\u00ed pouzdro<\/td>\nDesky t\u0159\u00eddy H dostupn\u00e9 ve variant\u00e1ch s O-krou\u017ekem (428H-O) a X-krou\u017ekem (428H-X)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Odolnost proti \u00fanav\u011b \u2013 pro\u010d je pro v\u011bt\u0161inu jezdc\u016f d\u016fle\u017eit\u011bj\u0161\u00ed ne\u017e mezn\u00ed zat\u00ed\u017een\u00ed<\/h2>\n
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Motocyklov\u00fd \u0159et\u011bz p\u0159i b\u011b\u017en\u00e9m pou\u017e\u00edv\u00e1n\u00ed nikdy neza\u017eije nic, co by se bl\u00ed\u017eilo jeho jmenovit\u00e9mu zat\u00ed\u017een\u00ed. \u0158et\u011bz 428H p\u0159i 20,6 kN nen\u00ed ohro\u017een p\u0159etr\u017een\u00edm p\u0159i to\u010div\u00e9m momentu motoru o objemu 250 ccm o v\u00fdkonu 20 kon\u00ed \u2013 skute\u010dn\u00e9 nap\u011bt\u00ed \u0159et\u011bzu za provozu je zlomkem zat\u00ed\u017een\u00ed. D\u016fle\u017eit\u011bj\u0161\u00ed struktur\u00e1ln\u00ed vlastnost\u00ed je odolnost proti \u00fanav\u011b: schopnost \u0159et\u011bzu odolat milion\u016fm cykl\u016f zat\u011b\u017eov\u00e1n\u00ed a odleh\u010dov\u00e1n\u00ed bez vzniku trhlin v lamel\u00e1ch.<\/p>\n

Poka\u017ed\u00e9, kdy\u017e \u010dl\u00e1nek \u0159et\u011bzu zas\u00e1hne zub \u0159et\u011bzov\u00e9ho kola, vnit\u0159n\u00ed a vn\u011bj\u0161\u00ed desti\u010dka se m\u00edrn\u011b ohnou, kdy\u017e se \u0159et\u011bz kloubov\u011b m\u011bn\u00ed z p\u0159\u00edm\u00e9ho do zak\u0159iven\u00e9ho sm\u011bru. Jakmile \u010dl\u00e1nek opust\u00ed \u0159et\u011bzov\u00e9 kolo, desti\u010dky se narovnaj\u00ed. Tento cyklus oh\u00fdb\u00e1n\u00ed a narovn\u00e1v\u00e1n\u00ed, kter\u00fd se opakuje tis\u00edckr\u00e1t za kilometr, je to, co \u010dasem unavuje materi\u00e1l desti\u010dky \u2013 nejedn\u00e1 se o jedinou ud\u00e1lost vysok\u00e9ho nap\u011bt\u00ed.<\/p>\n

T\u011b\u017e\u0161\u00ed desky t\u0159\u00eddy H jsou tu\u017e\u0161\u00ed v ohybu \u2013 to znamen\u00e1, \u017ee se desky p\u0159i stejn\u00e9m zat\u00ed\u017een\u00ed m\u00e9n\u011b proh\u00fdbaj\u00ed na jeden cyklus kloubu. Ni\u017e\u0161\u00ed prohnut\u00ed znamen\u00e1 ni\u017e\u0161\u00ed ohybov\u00e9 nap\u011bt\u00ed na jeden cyklus, co\u017e p\u0159\u00edmo prodlu\u017euje \u00fanavovou \u017eivotnost. Tato v\u00fdhoda z hlediska \u00fanavy je \u010dasto prakti\u010dt\u011bj\u0161\u00ed ne\u017e zv\u00fd\u0161en\u00ed pevnosti v tahu, zejm\u00e9na u stroj\u016f, kter\u00e9 najedou vysok\u00fd po\u010det kilometr\u016f trval\u00fdm pou\u017e\u00edv\u00e1n\u00edm, sp\u00ed\u0161e ne\u017e ob\u010dasn\u00fdmi \u0161pi\u010dkov\u00fdmi zat\u00ed\u017een\u00edmi.<\/p>\n<\/div>\n

\"Detail<\/div>\n<\/div>\n
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Praktick\u00fd p\u0159\u00edklad:<\/strong> Silni\u010dn\u00ed motocykl o objemu 150 ccm, kter\u00fd najede 30 000 km ro\u010dn\u011b po m\u011bstsk\u00fdch silnic\u00edch, nikdy nezat\u00ed\u017e\u00ed \u0159et\u011bz bl\u00edzko meze jeho p\u0159etr\u017een\u00ed \u2013 ale p\u0159i typick\u00fdch ot\u00e1\u010dk\u00e1ch \u0159et\u011bzu se na t\u00e9to vzd\u00e1lenosti zhruba 1,5 miliardykr\u00e1t oto\u010d\u00ed. V t\u00e9to aplikaci je zlep\u0161en\u00ed \u00fanavov\u00e9 odolnosti u t\u0159\u00eddy H relevantn\u011bj\u0161\u00ed pro \u017eivotnost \u0159et\u011bzu ne\u017e zv\u00fd\u0161en\u00ed pevnosti v tahu u 15,7%. U vozov\u00e9ho parku s vysok\u00fdm po\u010dtem najet\u00fdch kilometr\u016f se dodate\u010dn\u00e9 n\u00e1klady na t\u0159\u00eddu H oproti standardn\u00edmu \u0159et\u011bzu obvykle pokryj\u00ed sn\u00ed\u017eenou \u010detnost\u00ed v\u00fdm\u011bn.<\/p>\n<\/div>\n

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Kdy je standard spr\u00e1vn\u00fd a kdy se H-grade vyplat\u00ed<\/h2>\n
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Standardn\u00ed \u0159et\u011bz je vhodn\u00fd pro:<\/h3>\n