27 Aug 2009, 12:07
27 Aug 2009, 12:18
27 Aug 2009, 12:19
27 Aug 2009, 12:35
27 Aug 2009, 12:49
$1 scrie:$2ud + Snow (noroi + zapada). Sunt de iarna.
"Snow & mud or ice : special winter tyres
Winter tyres come at the other end of the spectrum to performance tyres, obviously. They're designed to work well in wintery conditions with snow and ice on the roads. Winter tyres typically have larger, and thus noiser tread block patterns. In extreme climates, true snow tyres have tiny metal studs fabricated into the tread for biting into the snow and ice. The downside of this is that they are incredibly noisy on dry roads and wear out both the tyre and the road surface extremely quickly if driven in the dry. Mud & snow tyres typically either have 'M&S' stamped on the tyre sidewall. Snow & Ice tyres have a snowflake symbol."
Cele All Season au marcaj care indica acest lucru.
27 Aug 2009, 12:56
27 Aug 2009, 13:38
27 Aug 2009, 13:49
27 Aug 2009, 14:34
27 Aug 2009, 15:04
$1 scrie:$2auciucurile cu indicativ "winter" este bine sa fie folosite numai iarna (conduc si la un consum usor marit, insa au o aderenta sporita in conditii dure de iarna), cele cu indicative M+S pot fi folosite si vara (aderenta in conditii grele este mai mica ca la cele winter )
in cazul masinilor dotate cu ESP lucrurile stau cam asa: iarna cauciucuri winter, vara cauciucuri de vara sau M+S
27 Aug 2009, 15:22
27 Aug 2009, 15:26
27 Aug 2009, 15:55
27 Aug 2009, 16:16
27 Aug 2009, 16:43
27 Aug 2009, 16:44
27 Aug 2009, 17:00
27 Aug 2009, 20:32
27 Aug 2009, 20:38
27 Aug 2009, 20:45
$1 scrie:$2$1 scrie:$2ud + Snow (noroi + zapada). Sunt de iarna.
"Snow & mud or ice : special winter tyres
Cele All Season au marcaj care indica acest lucru.
m-am prins,ale mele sunt de iarna(scrie si Alpin) pe ele
intrebare,care e marcajul pentru alea all seasons?
27 Aug 2009, 20:52
28 Aug 2009, 08:45
28 Aug 2009, 08:55
28 Aug 2009, 09:19
$1 scrie:$2ine, bine, si pina la urma care e diferenta intre Snow si M&S?
Dpdv practic, eu ce anvelope ar trebui sa am ptr oraselul Bucuresti unde mai vine cite o ninsoare nasoala pe iarna si in rest sint doar temperaturi scazute si asfalt cu strat subtire de gheata?
28 Aug 2009, 09:56
12 Sep 2009, 22:11
12 Oct 2009, 19:43
12 Oct 2009, 20:12
25 Oct 2009, 08:55
$1 scrie:$2ud and snow
Mud and Snow, (or M+S, or M&S), is a classification for specific winter tires designed to provide improved performance under low temperature conditions, compared to all-season tires. The tread compound is usually softer than that used in tires for summer conditions, thus providing better grip on ice and snow, but wears more quickly at higher temperatures. Tires may have well above average numbers of sipes in the tread pattern to grip the ice.
Dedicated winter tires will bear the "Mountain/Snowflake Pictograph" if designated as a winter/snow tire by the American Society for Testing & Materials. Winter tires will typically also carry the designation MS, M&S, or the words MUD AND SNOW (but see All-season tires, below).
Some winter tires may be designed to accept the installation of metal studs for additional traction on icy roads. The studs also roughen the ice, thus providing better friction between the ice and the soft rubber in winter tires. Use of studs is regulated in most countries, and even prohibited in some locales due to the increased road wear caused by studs. Typically, studs are never used on heavier vehicles. Studded tires are used in the upper tier classes of ice racing[21] and rallying.
Other winter tires rely on factors other than studding for traction on ice, e.g. highly porous or hydrophilic rubber that adheres to the wet film on the ice surface.
Some jurisdictions may from time to time require snow tires, or traction aids (e.g. tire chains) on vehicles driven in certain areas during extreme conditions.
Mud tires are specialty tires with large, chunky tread patterns designed to bite into muddy surfaces. The large, open design also allows mud to clear quickly from between the lugs. Mud terrain tires also tend to be wider than other tires, to spread the weight of the vehicle over a greater area to prevent the vehicle from sinking too deeply into the mud. However in reasonable amounts of mud and snow, tires should be thinner. Due to them having a thinner wheel base, the tire will have more pressure per square inch on the road surface, thus allowing the tires to penetrate the snow layer and grip harder snow or road surface beneath. This does not compensate when the snow is too deep for such penetration.
[edit] All season
The All Season tire classification is a compromise between one developed for use on dry and wet roads during summer and one developed for use under winter conditions. The type of rubber and the tread pattern best suited for use under summer conditions cannot, for technical reasons, give good performance on snow and ice. The all-season tire is a compromise, and is neither an excellent summer tire nor an excellent winter tire. They have, however, become almost ubiquitous as original and replacement equipment on automobiles marketed in the United States, due to their convenience and their adequate performance in most situations. All-Season tires are also marked for mud and snow the same as winter tires but rarely with a snowflake. Owing to the compromise with performance during summer, winter performance is usually poorer than a winter tire.
25 Oct 2009, 09:45