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Low rolling resistance tire

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tests. In the latter two cases, the effect of air resistance must be subtracted or the tests performed at very low speeds. In 2009 The CEC used a rating called Rolling Resistance Force RRF. RRF and RRC, rolling resistance coefficient are very similar. Difference is taking the RRF and dividing it by the load(weight) to get RRC. So a Michelin Harmony tire rated at 9.45 RRF at 1000 pounds load would be .0095 RRC.
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F150, rear-wheel drive standard pick-up truck; an Acura MDX, all-wheel drive sport-utility vehicle; and a Volkswagen Jetta, front-wheel drive compact sedan. Top speed and acceleration generally improved. "Handling performance showed no significant correlation with light-weighted and LRR tires; Braking & slalom testing showed variable results for the setups tested."
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A Transport Canada study that examined performance of vehicles that combined "light weighting" (reducing vehicle weight) and Low Rolling Resistance tires found that such vehicles performed about the same or better than their non-light-weighted/regular tire counterparts. The test vehicles were a Ford
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tests were planned on a number of different tires mounted on 15 and 16-inch rims – the most common tire sizes in Canada at that time – to determine how rolling resistance is influenced by vehicle size, tire width and profile. Results will be used to inform Canadians about the types of low rolling
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When measured by using these standard test practices, most new passenger tires have reported RRCs ranging from 0.007 to 0.014. In the case of bicycle tires, values of 0.0025 to 0.005 are achieved. These coefficients are measured on rollers, with power meters on road surfaces, or with coast-down
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The rolling resistance coefficient (RRC) indicates the amount of force required to overcome the hysteresis of the material as the tire rolls. Tire pressure, vehicle weight and velocity all play a role in how much force is lost to rolling resistance.
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resistance tires available in Canada, and whether they can help reduce fuel consumption and pollutants from passenger vehicles. SAE J2452 is a standard defined by the Society of Automotive Engineers to define the rolling resistance of tires.
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Because fuel efficiency is an important selling point for most hybrid vehicles, they are often equipped with low-rolling resistance tires. Electric vehicles are also often equipped with low-rolling resistance tires to maximize their range.
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Below are the light duty tires (as reported by Consumer reports) achieving their best rolling resistance rating. Again, higher overall rated tires are closer to the top of the list.
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has rolling resistance requirements that went into effect in July 2008. The law was passed in 2003 and the standards and reporting requirements were finalized in 2007.
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Tires and Passenger Vehicle Fuel Economy: Informing Consumers, Improving Performance -- Special Report 286 (2006) by Board on Energy and Environmental Systems (BEES)
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are designed to reduce the energy loss as a tire rolls, decreasing the required rolling effort — and in the case of automotive applications, improving vehicle
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Depending on the specific technique and materials used by the manufacturers, tire life may be as good as conventional tires, and traction may also be as good.
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Here is a list of Consumer Report's tires that achieved their best rolling resistance rating. The tires at the top of the list are rated higher overall.
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This model is newer than SAE J1269 and provides more accuracy over a range of different vehicle loads (weight), tire pressures and vehicle speeds.
1012:"Dynamic Performance Comparison of Vehicle Models & New Model Generations Employing Lightweight Materials and Low Rolling Resistance Tires" 531:
typically equip new vehicles with tires that have lower rolling resistance than their average after-market replacements, in order to meet
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newsletter says "LRR tires also meet the same federal standards for treadwear, traction, and temperature resistance as regular tires."
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require a regulation too: "Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance | UN Regulation No. 117".
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Older Low-rolling resistance tires may reduce ability to grip, especially when taking corners, and may also wear out more rapidly.
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Such tires are now commonly installed as standard, either mandated by law or to meet eco labelling standards.
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Some tires available in 2003 ranked by coefficient from lowest (least wasteful), according to the
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Earthwise: Updates from the Union of Concerned Scientists, Volume 6, Number 2, Spring 2004
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as approximately 5–15% of the fuel consumed by a typical gas car may be used to overcome
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Rolling resistance can be expressed by the rolling resistance coefficient (RRC or C
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Passenger tires are tested for rolling resistance in order to obtain the German
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Tires that improve vehicle fuel efficiency compared with conventional tires
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California Energy Commission, July 2003. Retrieved on 2007-08-11.
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Low Rolling Resistance Tires...Which is Best? - TDIClub Forums
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are determined by both the unit system and the values of
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0.00825 Continental ContiTouring Contact CH95 P205/55R16
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California has low-resistance tire laws - AutoblogGreen
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0.00700 Bridgestone DUELER H/T 113S P265/70R17
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California State Fuel-Efficient Tire Report: Volume I
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is the applied load for the vehicle weight (N / lbs)
1682: 1654: 1596: 1528: 1495: 1382: 1327: 1174: 153:{\displaystyle =P^{\alpha }Z^{\beta }(a+bv+cv^{2})} 622:0.00760 Bridgestone INSIGNIA SE 200 89S P195/65R15 473: 453: 433: 413: 393: 373: 353: 328: 308: 288: 268: 248: 226: 204: 182: 152: 514:(SAE J1269 and SAE J2452) performed on new tires. 649:0.00810 Bridgestone DUELER H/T 104S P235/70R16 501:National Highway Traffic Safety Administration 1152: 658:0.00829 Michelin CROSS TERRAIN SUV P255/75R17 8: 1664:European Tyre and Rim Technical Organisation 670:0.00855 Michelin ENERGY MXV4 PLUS 235/65R17 80:The basic model equation for SAE J2452 is: 1159: 1145: 1137: 568:United States National Academy of Sciences 190:is the tire inflation pressure (kPa / psi) 1014:. Transport Canada (Government of Canada) 466: 446: 426: 406: 386: 366: 346: 321: 301: 281: 261: 241: 219: 197: 175: 141: 110: 100: 91: 661:0.00833 Michelin PILOT PRIMACY 275/50R19 868: 664:0.00850 Michelin ENERGY LX4 P225/60R16 573:Special Report 286 and the March 2003 481:, so that the equation is consistent. 57:) are usually performed on new tires. 888: 886: 884: 667:0.00854 Michelin PILOT LTX P265/70R17 652:0.00813 Goodyear Invicta GL 235/75R15 37:Measuring rolling resistance in tires 7: 1707:Uniform Tire Quality Grading (UTQG) 639:0.00783 Continental CrossContact LX 612:0.00754 Michelin LTX A/S P255/65R17 783:Comparison with conventional tires 722:All Season Ultra High Performance 14: 712:Continental ContiPremierContact H 381:are dimensionless. The units of 336:are the coefficients of the model 234:is the vehicle speed (km/h / mph) 1730: 1729: 1719: 752:BFGoodrich Radial Long Trail T/A 1563:Tire-pressure monitoring system 728:Continental ContiExtremeContact 47:Society of Automotive Engineers 533:Corporate Average Fuel Economy 147: 116: 1: 1553:Central Tire Inflation System 1131:Rolling Resistance Thresholds 796:Union of Concerned Scientists 646:TPAW TOURING TR/SR P215/70R16 571:Transportation Research Board 86:Rolling Resistance (N / lbs) 923:California Energy Commission 876:Low Rolling Resistance Tires 494:California Energy Commission 20:Low rolling resistance tires 1674:Tire Science and Technology 1194:Low rolling resistance tire 778:Goodyear Assurance Fuel Max 743:Bridgestone Dueler H/T D684 629:RUGGED TRAIL T/A P245/65R17 609:RUGGED TRAIL T/A P285/70R17 1777: 959:Transport Canada LRR Study 858:Blue Angel (certification) 808: 527:Auto manufacturers in the 1715: 1052:"Rolling out the changes" 749:Continental ContiTrac SUV 709:Michelin Energy MXV4 Plus 619:INTEGRITY (OE) P225/60R16 554:tires. For Indian roads, 765:Continental ContiTrac TR 687:Michelin Agility Touring 599:TIGER PAW AWP P225/60R16 1515:Slip (vehicle dynamics) 1472:Lateral Force Variation 1422:Pacejka's Magic Formula 1402:Cold inflation pressure 1126:How tires support a car 706:Performance All Season 636:Ameri-G4S WS P235/75R15 454:{\displaystyle \alpha } 354:{\displaystyle \alpha } 249:{\displaystyle \alpha } 1611:List of tire companies 1482:Traction (engineering) 1477:Radial Force Variation 746:Michelin Cross Terrain 515: 475: 474:{\displaystyle \beta } 455: 435: 415: 395: 375: 374:{\displaystyle \beta } 355: 330: 310: 290: 270: 269:{\displaystyle \beta } 250: 228: 206: 184: 154: 64:In the early 2010s in 1462:Tire load sensitivity 805:Regional requirements 775:Michelin Energy Saver 577:report on the topic. 556:Madras Rubber Factory 513: 476: 456: 436: 416: 396: 376: 356: 331: 311: 291: 271: 251: 229: 207: 185: 155: 1442:Self aligning torque 771:New models by 2009: 465: 445: 425: 405: 385: 365: 345: 320: 300: 280: 260: 240: 218: 196: 174: 90: 1756:Energy conservation 1568:Tire-pressure gauge 1204:Michelin PAX System 725:General Exclaim UHP 592:SYMMETRY P225/60R16 1606:Tire manufacturing 1437:Rolling resistance 1093:globalautoregs.com 1038:2008-01-15 at the 964:2011-01-17 at the 946:2010-12-25 at the 928:2012-03-10 at the 848:Rolling resistance 548:Bridgestone Ecopia 535:(CAFE) standards. 519:Standard equipment 516: 471: 451: 431: 411: 391: 371: 351: 326: 306: 286: 266: 246: 224: 202: 180: 150: 28:rolling resistance 1743: 1742: 1432:Relaxation length 1309:Formula One tyres 1000:Green Seal Report 906:"Al Morrison Crr" 684:Michelin X Radial 552:Goodyear Eagle LS 507:saved annually. 434:{\displaystyle c} 414:{\displaystyle b} 394:{\displaystyle a} 329:{\displaystyle c} 309:{\displaystyle b} 289:{\displaystyle a} 227:{\displaystyle v} 205:{\displaystyle Z} 183:{\displaystyle P} 1768: 1733: 1732: 1725:Outline of tires 1723: 1538:Tire maintenance 1487:Treadwear rating 1397:Circle of forces 1319:Continental tire 1259:Orange oil tires 1249:Mud-terrain tire 1229:All-terrain tire 1161: 1154: 1147: 1138: 1114: 1109: 1103: 1102: 1100: 1099: 1085: 1079: 1074: 1068: 1067: 1065: 1063: 1048: 1042: 1030: 1024: 1023: 1021: 1019: 1008: 1002: 997: 991: 986: 980: 974: 968: 956: 950: 938: 932: 920: 914: 913: 908:. Archived from 902: 896: 890: 879: 873: 690:Michelin Harmony 499:A United States 488:Fuel consumption 480: 478: 477: 472: 460: 458: 457: 452: 440: 438: 437: 432: 420: 418: 417: 412: 400: 398: 397: 392: 380: 378: 377: 372: 360: 358: 357: 352: 335: 333: 332: 327: 315: 313: 312: 307: 295: 293: 292: 287: 275: 273: 272: 267: 255: 253: 252: 247: 233: 231: 230: 225: 211: 209: 208: 203: 189: 187: 186: 181: 159: 157: 156: 151: 146: 145: 115: 114: 105: 104: 70:Transport Canada 1776: 1775: 1771: 1770: 1769: 1767: 1766: 1765: 1746: 1745: 1744: 1739: 1711: 1678: 1650: 1592: 1524: 1491: 1467:Tire uniformity 1427:Pneumatic trail 1417:Ground pressure 1412:Cornering force 1378: 1352:Siping (rubber) 1323: 1294:Motorcycle tyre 1170: 1165: 1135: 1122: 1117: 1110: 1106: 1097: 1095: 1087: 1086: 1082: 1075: 1071: 1061: 1059: 1050: 1049: 1045: 1040:Wayback Machine 1031: 1027: 1017: 1015: 1010: 1009: 1005: 998: 994: 987: 983: 975: 971: 966:Wayback Machine 957: 953: 948:Wayback Machine 939: 935: 930:Wayback Machine 921: 917: 904: 903: 899: 891: 882: 874: 870: 866: 853:Fuel efficiency 844: 830: 813: 807: 785: 696:Sumitomo HTR T4 585:B381 P145/80R14 564: 562:Available tires 544:Michelin Energy 521: 506: 490: 463: 462: 443: 442: 423: 422: 403: 402: 383: 382: 363: 362: 343: 342: 318: 317: 298: 297: 278: 277: 258: 257: 238: 237: 216: 215: 194: 193: 172: 171: 137: 106: 96: 88: 87: 44: 39: 24:fuel efficiency 17: 12: 11: 5: 1774: 1772: 1764: 1763: 1758: 1748: 1747: 1741: 1740: 1738: 1737: 1727: 1716: 1713: 1712: 1710: 1709: 1704: 1699: 1694: 1688: 1686: 1684:Identification 1680: 1679: 1677: 1676: 1671: 1666: 1660: 1658: 1652: 1651: 1649: 1648: 1646:Ozone cracking 1643: 1638: 1633: 1628: 1626:Tire recycling 1623: 1618: 1613: 1608: 1602: 1600: 1594: 1593: 1591: 1590: 1585: 1580: 1575: 1570: 1565: 1560: 1555: 1550: 1545: 1540: 1534: 1532: 1526: 1525: 1523: 1522: 1517: 1512: 1507: 1501: 1499: 1493: 1492: 1490: 1489: 1484: 1479: 1474: 1469: 1464: 1459: 1454: 1452:Steering ratio 1449: 1444: 1439: 1434: 1429: 1424: 1419: 1414: 1409: 1404: 1399: 1394: 1388: 1386: 1380: 1379: 1377: 1376: 1375: 1374: 1372:Schrader valve 1369: 1364: 1354: 1349: 1344: 1339: 1333: 1331: 1325: 1324: 1322: 1321: 1316: 1311: 1306: 1301: 1296: 1291: 1286: 1281: 1276: 1271: 1266: 1264:Whitewall tire 1261: 1256: 1251: 1246: 1241: 1236: 1231: 1226: 1221: 1216: 1211: 1206: 1201: 1196: 1191: 1186: 1180: 1178: 1172: 1171: 1166: 1164: 1163: 1156: 1149: 1141: 1134: 1133: 1128: 1121: 1120:External links 1118: 1116: 1115: 1104: 1080: 1069: 1043: 1025: 1003: 992: 981: 969: 951: 933: 915: 912:on 2007-01-29. 897: 880: 867: 865: 862: 861: 860: 855: 850: 843: 840: 829: 828:Certifications 826: 822:United Nations 806: 803: 784: 781: 780: 779: 776: 769: 768: 767: 766: 756: 755: 754: 753: 750: 747: 744: 734: 733: 732: 731: 730: 729: 726: 719:Least benefit 717: 716: 715: 714: 713: 710: 701: 700: 699: 698: 697: 694: 693:Toyo 800 Ultra 691: 688: 685: 678:Highly rated: 672: 671: 668: 665: 662: 659: 656: 653: 650: 647: 640: 637: 630: 623: 620: 613: 610: 603: 600: 593: 586: 563: 560: 538:These include 520: 517: 504: 489: 486: 470: 450: 430: 410: 390: 370: 350: 340: 339: 338: 337: 325: 305: 285: 265: 245: 235: 223: 213: 201: 191: 179: 163: 162: 161: 160: 149: 144: 140: 136: 133: 130: 127: 124: 121: 118: 113: 109: 103: 99: 95: 42: 38: 35: 15: 13: 10: 9: 6: 4: 3: 2: 1773: 1762: 1759: 1757: 1754: 1753: 1751: 1736: 1728: 1726: 1722: 1718: 1717: 1714: 1708: 1705: 1703: 1700: 1698: 1695: 1693: 1690: 1689: 1687: 1685: 1681: 1675: 1672: 1670: 1667: 1665: 1662: 1661: 1659: 1657: 1656:Organizations 1653: 1647: 1644: 1642: 1639: 1637: 1634: 1632: 1629: 1627: 1624: 1622: 1619: 1617: 1614: 1612: 1609: 1607: 1604: 1603: 1601: 1599: 1595: 1589: 1586: 1584: 1581: 1579: 1576: 1574: 1571: 1569: 1566: 1564: 1561: 1559: 1556: 1554: 1551: 1549: 1546: 1544: 1543:Tire rotation 1541: 1539: 1536: 1535: 1533: 1531: 1527: 1521: 1518: 1516: 1513: 1511: 1510:Groove wander 1508: 1506: 1503: 1502: 1500: 1498: 1494: 1488: 1485: 1483: 1480: 1478: 1475: 1473: 1470: 1468: 1465: 1463: 1460: 1458: 1455: 1453: 1450: 1448: 1445: 1443: 1440: 1438: 1435: 1433: 1430: 1428: 1425: 1423: 1420: 1418: 1415: 1413: 1410: 1408: 1407:Contact patch 1405: 1403: 1400: 1398: 1395: 1393: 1392:Camber thrust 1390: 1389: 1387: 1385: 1381: 1373: 1370: 1368: 1365: 1363: 1360: 1359: 1358: 1355: 1353: 1350: 1348: 1345: 1343: 1340: 1338: 1335: 1334: 1332: 1330: 1326: 1320: 1317: 1315: 1312: 1310: 1307: 1305: 1302: 1300: 1297: 1295: 1292: 1290: 1287: 1285: 1282: 1280: 1277: 1275: 1272: 1270: 1269:Aircraft tire 1267: 1265: 1262: 1260: 1257: 1255: 1252: 1250: 1247: 1245: 1242: 1240: 1237: 1235: 1232: 1230: 1227: 1225: 1222: 1220: 1217: 1215: 1212: 1210: 1207: 1205: 1202: 1200: 1199:Run-flat tire 1197: 1195: 1192: 1190: 1187: 1185: 1184:Tubeless tire 1182: 1181: 1179: 1177: 1173: 1169: 1162: 1157: 1155: 1150: 1148: 1143: 1142: 1139: 1132: 1129: 1127: 1124: 1123: 1119: 1113: 1108: 1105: 1094: 1090: 1084: 1081: 1078: 1073: 1070: 1058:. 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Index

fuel efficiency
rolling resistance
Society of Automotive Engineers
SAE J1269
SAE J2452
Canada
Transport Canada
California Energy Commission
National Highway Traffic Safety Administration

United States
Corporate Average Fuel Economy
Conti Contact
Michelin Energy
Bridgestone Ecopia
Goodyear Eagle LS
Madras Rubber Factory
United States National Academy of Sciences
Transportation Research Board
Green Seal
Bridgestone
Michelin
Uniroyal
BFGoodrich
Goodyear
BFGoodrich
Continental
Uniroyal
Union of Concerned Scientists
Tyre label

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