Ribble R872 Disc – Pro – Anthracite – Bikes – Ribble Cycles – Shimano Ultegra

Anthracite, also known as hard coal and black coal, is a hard, compact variety of coal that has a submetallic lustre. It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal and is the highest ranking of coals.

The Coal Region of Northeastern Pennsylvania in the United States has the largest known deposits of anthracite coal in the world with an estimated reserve of seven billion short tons. China accounts for the majority of global production; other producers include Russia, Ukraine, North Korea, South Africa, Vietnam, Australia, Canada, and the United States. Total production in 2020 was 615 million tons.

Anthracite is the most metamorphosed type of coal, but still represents low-grade metamorphism, in which the carbon content is between 86% and 97%. The term is applied to those varieties of coal which do not give off tarry or other hydrocarbon vapours when heated below their point of ignition. Anthracite is difficult to ignite, and burns with a short, blue, and smokeless flame.

Anthracite is categorized into several grades. Standard grade is used predominantly in power generation, and high grade (HG) and ultra high grade (UHG), are used predominantly in the metallurgy sector. Anthracite accounts for about 1% of global coal reserves, and is mined in only a few countries around the world.

Disk or disc may refer to:

• Disk (mathematics), a two dimensional shape, the interior of a circle
• Disk storage
• Optical disc

Pro is an abbreviation meaning "professional".

Pro, PRO or variants thereof might also refer to:

Ribble may refer to:

• River Ribble, in North Yorkshire and Lancashire, England
  • Ribble and Alt Estuaries
• River Ribble, West Yorkshire, England
• Ribble Motor Services, a former bus company in North West England
• Ribble Valley, a local government district in Lancashire, England
• Ribble Valley (UK Parliament constituency) in Lancashire, England
• HMS Ribble, a British Royal Navy vessel
• Reid Ribble, American politician, U.S. Representative for Wisconsin from 2011 to 2017

Shimano, Inc. (株式会社シマノ, Kabushiki-gaisha Shimano), originally Shimano Iron Works (島野鐵工所) and later Shimano Industries, Inc. (島野工業株式会社), is a Japanese multinational manufacturing company for cycling components, fishing tackle and rowing equipment, who also produced golf supplies until 2005 and snowboarding gear until 2008. Named after founder Shozaburo Shimano (島野庄三郎, 1894–1958) and headquartered in Sakai, Osaka Prefecture, the company has 32 consolidated and 11 unconsolidated subsidiaries, with the primary manufacturing plants based in Kunshan (China), Malaysia and Singapore.

In 2017, Shimano had net sales of US $3.2 billion, 38% in Europe, 35% in Asia, and 11% in North America. Bicycle components represented 80%, fishing tackle 19%, and other products 0.1%. The company is publicly traded, with 93 million shares of common stock outstanding.

They are also the official neutral support for most of the UCI World Tour.