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Tire Tech Articles

SPEED RATINGS & LOAD-CARRYING CAPACITY

SERVICE DESCRIPTION

Many tires come with a service description added on to the end of the tire's size. These service descriptions contain a two-digit number (load index) and a letter (speed rating). The load index is a representation of the maximum load each tire is designed to support. Because the maximum tire load-carrying capacity is branded on the tire's sidewall, the load indes is used as a quick reference.

SPEED RATING TABLE

This example shows you how to determine the maximum load-carrying capacity based on a tire's load index.

Code Profiler (Memory usage: real - 41943040, emalloc - 36681240)
Timer Id Time Avg Cnt Emalloc RealMem
cache_frontend_create 0.024342 0.012171 2 620,256 0
magento 2.842424 2.842424 1 20,490,992 20,971,520
·  EVENT:core_collection_abstract_load_before 0.032108 0.032108 1 201,008 0
·  store.resolve 0.004982 0.004982 1 201,072 0
·  session_start 0.000217 0.000217 1 12,272 0
·  EVENT:model_load_before 0.014934 0.014934 1 76,288 0
·  routers_match 0.645315 0.645315 1 8,080,632 4,194,304
·  ·  load_area:frontend.translate 0.036273 0.036273 1 52,560 0
·  ·  EAV: Magento\Eav\Model\Config::_initEntityTypes 0.000993 0.000993 1 42,320 0
·  ·  EAV: Magento\Eav\Model\Config::getEntityType 0.000293 0.000293 1 10,728 0
·  ·  EVENT:controller_action_predispatch 0.124992 0.124992 1 442,520 0
·  ·  ·  OBSERVER:customer_visitor 0.115574 0.115574 1 123,728 0
·  ·  ·  ·  EVENT:clean_cache_by_tags 0.001097 0.001097 1 13,760 0
·  ·  ·  OBSERVER:persistent_synchronize 0.004086 0.004086 1 161,560 0
·  ·  ·  OBSERVER:persistent 0.001005 0.001005 1 94,176 0
·  ·  ·  OBSERVER:mageplaza_captcha_frontend 0.001739 0.001739 1 18,792 0
·  ·  CONTROLLER_ACTION:cms_page_view 0.245111 0.245111 1 2,005,568 2,097,152
·  ·  ·  action_body 0.245098 0.245098 1 2,004,696 2,097,152
·  ·  ·  ·  LAYOUT 0.219574 0.073191 3 1,505,520 0
·  ·  ·  ·  ·  layout_load 0.091007 0.091007 1 206,096 0
·  ·  ·  ·  ·  ·  layout_package_update:default 0.087006 0.087006 1 193,360 0
·  ·  ·  ·  ·  layout_generate_xml 0.001749 0.001749 1 25,112 0
·  ·  ·  ·  ·  layout_generate_blocks 0.126402 0.126402 1 1,265,120 0
·  ·  ·  ·  ·  ·  Magento\Framework\View\Layout::Magento\Framework\View\Layout::generateElements 0.126285 0.126285 1 1,549,664 0
·  ·  ·  ·  ·  ·  ·  build_structure 0.005993 0.005993 1 298,712 0
·  ·  ·  ·  ·  ·  ·  generate_elements 0.119831 0.119831 1 1,246,040 0
·  ·  ·  ·  ·  ·  ·  ·  EVENT:core_layout_block_create_after 0.000143 0.000003 44 -12,312 0
·  ·  ·  ·  ·  ·  ·  ·  layout_package_update:catalog_product_prices 0.079623 0.079623 1 12,296 0
·  ·  ·  ·  ·  ·  ·  ·  Magento\Framework\View\Layout::Magento\Framework\View\Layout::generateElements 0.001942 0.001942 1 100,008 0
·  ·  ·  ·  ·  ·  ·  ·  ·  build_structure 0.001137 0.001137 1 68,712 0
·  ·  ·  ·  ·  ·  ·  ·  ·  generate_elements 0.000692 0.000692 1 27,560 0
·  ·  ·  ·  layout_package_update:1column 0.009116 0.009116 1 6,880 0
·  LAYOUT 0.180337 0.180337 1 3,643,704 4,194,304
·  ·  layout_render 0.180330 0.180330 1 3,643,288 4,194,304
·  ·  ·  EVENT:view_block_abstract_to_html_before 0.000111 0.000004 29 -7,696 0
·  ·  ·  TEMPLATE:/home/atv/public_html/atd/vendor/magento/module-theme/view/frontend/templates/page/js/require_js.phtml 0.000772 0.000772 1 12,104 0
·  ·  ·  EVENT:view_block_abstract_to_html_after 0.000146 0.000005 29 -7,712 0
·  ·  ·  TEMPLATE:/home/atv/public_html/atd/vendor/magento/module-theme/view/frontend/templates/html/container.phtml 0.000984 0.000984 1 11,336 0
·  ·  ·  EVENT:core_layout_render_element 0.000681 0.000014 48 31,296 0
·  ·  ·  ·  OBSERVER:pagecache 0.000303 0.000006 48 2,792 0
·  ·  ·  TEMPLATE:/home/atv/public_html/atd/vendor/magento/module-catalog/view/base/templates/js/components.phtml 0.001826 0.001826 1 15,896 0
·  ·  ·  TEMPLATE:/home/atv/public_html/atd/app/design/frontend/ATV/ATD/Magento_Theme/templates/header.phtml 0.055492 0.055492 1 1,693,656 2,097,152
·  ·  ·  TEMPLATE:/home/atv/public_html/atd/app/design/frontend/ATV/ATD/Magento_Theme/templates/mainmenu.phtml 0.041692 0.041692 1 1,149,232 0
·  ·  ·  TEMPLATE:/home/atv/public_html/atd/app/design/frontend/ATV/ATD/Magento_Customer/templates/js/section-config.phtml 0.001257 0.001257 1 4,840 0
·  ·  ·  TEMPLATE:/home/atv/public_html/atd/app/design/frontend/ATV/ATD/Magento_Theme/templates/footer.phtml 0.054662 0.054662 1 33,784 0