Zli Gli Posted March 23, 2016 Posted March 23, 2016 A jel tih recimo pola godine stajanja negde u nekom magacinu uticu negativno na performanse i kvalitet guma? Ozbiljno pitam, posto nemam blage veze o tome.
Time Crisis Posted March 23, 2016 Posted March 23, 2016 A jel tih recimo pola godine stajanja negde u nekom magacinu uticu negativno na performanse i kvalitet guma? Ozbiljno pitam, posto nemam blage veze o tome. Ne bi trebalo. Doduše, obično se preporučuje zamena bar svakih 5-6 godina, tako da verovatno nije svejedno ako u startu već imaju godinu dana ili više.
salerokada Posted March 23, 2016 Posted March 23, 2016 (edited) This is a subject of much debate within the tyre industry and no tyre expert can tell exactly how long a tyre will last. However, on the results of experience many tyre companies, including Bridgestone, warrant their tyres against manufacturing and material defects for five years from the date of manufacture. Based on their understanding a number of vehicle manufacturers are now advising against the use of tyres that are more than six years old due to the effects of ageing. Tyre Ageing Mechanism There are three main mechanisms of tyre ageing. The first involves rubber becoming more brittle. Sulphur is used to link rubber molecules together during vulcanisation with the application of heat and pressure, giving the rubber its useful elastic properties and strength. As the tyre absorbs energy in the form of light, heat or movement the tyre continues to vulcanise. This ongoing vulcanisation causes the rubber to become stiffer and more brittle. The second mechanism of tyre ageing is oxidation involving oxygen and ozone from the air compromising the strength and elasticity of the rubber and the integrity of the rubber to steel bond. Basically heat and oxygen cause cross linking between polymer chains (causing the rubber to harden) and scission of polymer chains (leading to reduced elasticity). Thirdly, breakdown of the rubber to steel-belt bond will occur due to water permeating through a tyre and bonding with the brass plate coating on steel belts. This causes the steel to rubber bond to weaken leading to reduced tyre strength and reduced heat resistance. If compressed air used for inflation is not completely dry, tyre strength will be affected over time. Even unused tyres will become more brittle, weaker and less elastic with exposure to water, air, heat and sunlight. Edited March 23, 2016 by salerokada
Ardian Posted March 23, 2016 Posted March 23, 2016 Vulkanizer mi rece da je ovolika starost novih guma (skoro godinu dana) prilicno uobicajena ... Uglavnom, ja nijedan auto nisam drzao u posedu duze od 2 godine, pa necu ni ovaj. Za to vreme ce sasvim sigurno lepo posluziti. A inace, na njemu su bile Michelin Primacy iz 2013, ali totalno pojedene!
namenski Posted March 23, 2016 Posted March 23, 2016 Ne bi trebalo. Doduše, obično se preporučuje zamena bar svakih 5-6 godina, tako da verovatno nije svejedno ako u startu već imaju godinu dana ili više. Ako je o gumama rec, ne razumem zasto prvo starost, valjda kilometraza pre svega, zatim kako je i gde auto tavorio dok se ne vozi, avlija, garaza, sunce, ladovina... Ne baratam bas, ali iz pisanja ovde vidim da se sve cesce zimske/letnje gume van sezone skidaju i lageruju negde, neki podrum, garaza, taj rad pretpostavljam i u tom slucaju jaka preporuka kupiti u apoteci malo glicerina, trosak je minimalan, i izmackati gume spolja i mekom cetkom, krpom svejedno. To isto vazi i za kedere na vratima, narocito uoci zime, mada po neko to ne voli jer hoce da hvata prasinu, ali vredi itekako cak i za dobrodihtujuce automobile... A sto se tice odlezavanja guma u magacinu - lutrija. Datum proizvodnje jeste bitan, ali nije svejedno gde su gume i u kojim uslovima provele period magacioniranja, mada tu leka nema, osim uzdati se u srecu...
Time Crisis Posted March 23, 2016 Posted March 23, 2016 Kilometraža se podrazumeva, ako neko prelazi 50k ili više kilometara godišnje, može da ih menja svake godine. :)
namenski Posted March 23, 2016 Posted March 23, 2016 Kilometraža se podrazumeva, ako neko prelazi 50k ili više kilometara godišnje, može da ih menja svake godine. :) Ma zbunio si me akcentovanjem starosti, pa rekoh da vidim u cemu je stvar :)
salerokada Posted March 23, 2016 Posted March 23, 2016 Vulkanizer mi rece da je ovolika starost novih guma (skoro godinu dana) prilicno uobicajena ... Ma nije mi to toliko sporno. Nego, što telefonom decidirano tvrde da su sve gume koje prodaju proizvedene krajem 2015. A da su cene guma dampovane jer je uvoznik tako rešio, tako mu odgovara. Mo'š misliti.
Zli Gli Posted March 24, 2016 Posted March 24, 2016 Jel neko uopste poredio cene ovih Nokian Line na drugim sajtovima u odnosu na ovaj ekupi? Ako su 195 65 15 inace dosta skuplje nego ovih 5700din po komadu koliko je kod njih, spreman sam da bacim 200e pa da jednom u zivotu furam nove gume, i pored toga sto vozim Astru od 17-18 godina starosti. Ako su i inace oko 50e onda mi seva paja, cekacu drugu priliku.
Đipalo Junuz Posted March 26, 2016 Posted March 26, 2016 Je l' neko menjao komplet za prvu pomoć 'staro za novo' za 690 dinara? Da li to uopšte funkcioniše? Danas sam video da mi je rok trajanja kompleta bio do juna 2015, ne bi me iznenadilo da počnu to da kontrolišu kad ne nađu ništa drugo da pišu kaznu... 5000 u džepu me ne žulja baš...
wall Posted March 26, 2016 Posted March 26, 2016 Ja sam uzeo "novo za pare" a u starom vucaram lekove, flastere i sl kada idem na put...
Đipalo Junuz Posted March 26, 2016 Posted March 26, 2016 Znači da pazarim novo, da se ne cimam? I dalje je 5 godina rok trajanja?
wall Posted March 26, 2016 Posted March 26, 2016 5 godina. Svakako gledaj da čim pre zameniš, ako možeš zamenu onda što da ne.
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