KK Yoshigai (jap.株式会社ヨシガイ, Kabushiki kaisha Yoshigai), known by its brand name Dia-Compe, is a Japanese manufacturer of bicycle components headquartered in Kadoma of the Ōsaka Prefecture. Dia-Compe have specialised in caliper and cantilever brakes, headsets, handlebar stems, suspension forks and other bicycle components.
Brakes, headsets, suspension forks and handlebar stems
Website
www.diacompe.co.jp
History
The company manufactured its first bicycle brake in 1930. In 1949, the company was floated on the Tokyo Stock Exchange. Kiyokazu and Toshiharu Yoshigai, the sons of the company's founder, later succeeded their father at the company's helm. Kiyokazu Yoshigai's son, Kozo Yoshigai, is now president of the company.[1]
In the 1960s the Swiss manufacturer Weinmann supplied Dia-Compe with brake parts. Dia-Compe invented the brake-lever extension in roughly 1969. This was at once widely appreciated by manufacturers including Schwinn, which dropped the use of Weinmann brakesets and adopted Dia Compe brakesets on all models except the Schwinn Paramount. However, this invention was also nicknamed as "Suicide Levers" because they did not fully actuate the brake levers, producing a loss of stopping power. Their patents were so intimidating that Weinmann cross-licensed all Dia-Compe patents in return for access to the brake-lever extension patent a few years later. International subsidiaries of the Dia-Compe brand were established in the United States in 1975 and in the Republic of China (Taiwan) in 1987.[2]
In 1990 John Rader, the designer of the Aheadset system (US Patent 5095770 A [3]), gave exclusive licensing to Dia-Compe for the product.[4] Dia-Compe USA financed fledgling company RockShox in the development of the RS-1 suspension fork. The USA subsidiary of Dia-Compe was eventually purchased by RockShox in the 1990s. In 1992 Dia-Compe USA became Cane Creek Cycling Components and introduced the threadless headset (AheadSet®).[5]
Dia-Compe has begun selling a range of other wheel components.[6] Other KK Yoshigai brand names for wheel components are Diatech and Gran Compe. A subsidiary of the Diatech brand was founded in 1996 in the United States. The company also produces complete bicycles.
In 2005, the company moved its headquarters to Kadoma.
References
^Dia-Compe Yoshigai Kikai Kinzoku Co., Ltd - Osaka, Japan
^"Steering bearing assembly for wheeled vehicle US 5095770 A". Retrieved August 13, 2017.
^"Cane Creek 110 IS Review". Retrieved August 12, 2017.
^"Cane Creek-Culture-Soul". Retrieved August 13, 2017.
^"Dia-Compe, general company information". Retrieved August 13, 2017.
February 04, 2023
compe, topic, this, article, meet, wikipedia, notability, guidelines, companies, organizations, please, help, demonstrate, notability, topic, citing, reliable, secondary, sources, that, independent, topic, provide, significant, coverage, beyond, mere, trivial,. The topic of this article may not meet Wikipedia s notability guidelines for companies and organizations Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond a mere trivial mention If notability cannot be shown the article is likely to be merged redirected or deleted Find sources Dia Compe news newspapers books scholar JSTOR August 2017 Learn how and when to remove this template message KK Yoshigai jap 株式会社ヨシガイ Kabushiki kaisha Yoshigai known by its brand name Dia Compe is a Japanese manufacturer of bicycle components headquartered in Kadoma of the Ōsaka Prefecture Dia Compe have specialised in caliper and cantilever brakes headsets handlebar stems suspension forks and other bicycle components KK YoshigaiIndustryBicycle component manufacturerFounded1930HeadquartersKadoma Osaka JapanKey peopleKozo Yoshigai President ProductsBrakes headsets suspension forks and handlebar stemsWebsitewww diacompe co jpHistory EditThe company manufactured its first bicycle brake in 1930 In 1949 the company was floated on the Tokyo Stock Exchange Kiyokazu and Toshiharu Yoshigai the sons of the company s founder later succeeded their father at the company s helm Kiyokazu Yoshigai s son Kozo Yoshigai is now president of the company 1 In the 1960s the Swiss manufacturer Weinmann supplied Dia Compe with brake parts Dia Compe invented the brake lever extension in roughly 1969 This was at once widely appreciated by manufacturers including Schwinn which dropped the use of Weinmann brakesets and adopted Dia Compe brakesets on all models except the Schwinn Paramount However this invention was also nicknamed as Suicide Levers because they did not fully actuate the brake levers producing a loss of stopping power Their patents were so intimidating that Weinmann cross licensed all Dia Compe patents in return for access to the brake lever extension patent a few years later International subsidiaries of the Dia Compe brand were established in the United States in 1975 and in the Republic of China Taiwan in 1987 2 In 1990 John Rader the designer of the Aheadset system US Patent 5095770 A 3 gave exclusive licensing to Dia Compe for the product 4 Dia Compe USA financed fledgling company RockShox in the development of the RS 1 suspension fork The USA subsidiary of Dia Compe was eventually purchased by RockShox in the 1990s In 1992 Dia Compe USA became Cane Creek Cycling Components and introduced the threadless headset AheadSet 5 Dia Compe has begun selling a range of other wheel components 6 Other KK Yoshigai brand names for wheel components are Diatech and Gran Compe A subsidiary of the Diatech brand was founded in 1996 in the United States The company also produces complete bicycles In 2005 the company moved its headquarters to Kadoma References Edit Dia Compe Yoshigai Kikai Kinzoku Co Ltd Osaka Japan Dia Compe Taiwan Retrieved August 13 2017 Steering bearing assembly for wheeled vehicle US 5095770 A Retrieved August 13 2017 Cane Creek 110 IS Review Retrieved August 12 2017 Cane Creek Culture Soul Retrieved August 13 2017 Dia Compe general company information Retrieved August 13 2017 Retrieved from https en wikipedia org w index php title Dia Compe amp oldid 1109461075, wikipedia, wiki, book, books, library,
