Freio de bicicleta

Animação do sistema de pivô único.

Freio de bicicleta são usados para parar uma bicicleta. Diversos sistemas e modelos de freio foram desenvolvidos ao longo do tempo. São geralmente acionados com as mãos através de manetes localizado no guidão, mas em alguns casos como tambores, pode ser acionado pela pedivela.

Existem atualmente três sistemas principais;

Freio a disco

Freio a borracha

Freio a borracha é um acessório que permite parar ou travar a roda de uma bicicleta , tanto como um carro ou uma moto. Freio a borracha e duas balanças que imprensam a roda.

Freio a tambor

Este sistema é acionado quando o pedal é girado do lado contrário (para trás),um conjunto de mecanismo faz com que uma espécie de cubo inche dentro do outro cubo,fazendo uma pressão contra o cubo externo, que gira no seu sentido normal. Este modelo de freio dura em média 5 a 8 anos sem precisar trocar peças e sua manutenção é quase zero. A corrente deve estar em bom estado, para não arrebentar ou cair. Sem a corrente, o freio não será acionado (mesmo sendo raro uma corrente deste modelo de freio cair ou arrebentar).

Ícone de esboço Este artigo sobre ciclismo é um esboço. Você pode ajudar a Wikipédia expandindo-o.

Read other articles:

C (латиница)

У этого термина существуют и другие значения, см. C. Символы со сходным начертанием: С · с · Ϲ · ϲ · င · Ⅽ Буква латиницы C Cc Изображение ◄ ? @ A B C D E F G ► ◄ _ ` a b c d e f g ► Характеристики Название C: latin capital letter cc: latin small letter c Юникод C:...

 

 

Harvard–Yale soccer rivalry

Collegiate association football rivalry Harvard-Yale soccer rivalry Harvard Crimson Yale Bulldogs SportCollege soccerFirst meetingMen:May 25, 1907Harvard 1, Yale 1Women:November 11, 1977Harvard 2, Yale 0Latest meetingMen:October 2, 2021Yale 0, Harvard 0Women:October 1, 2022Harvard 6, Yale 0Next meetingMen:October 22, 2022Women:2023StatisticsMeetings totalMen:108Women:46All-time seriesMen:Harvard, 54–41–13Women:Harvard, 34–9–2Largest victoryMen:Harvard 6–1 Yale (1977)Women:Harvard 6�...

 

 

العلاقات البرتغالية الغينية

العلاقات البرتغالية الغينية البرتغال غينيا   البرتغال   غينيا تعديل مصدري - تعديل   العلاقات البرتغالية الغينية هي العلاقات الثنائية التي تجمع بين البرتغال وغينيا.[1][2][3][4][5] مقارنة بين البلدين هذه مقارنة عامة ومرجعية للدولتين: وجه المقارن...

Media coverage of the 2014 Gaza War

This article uses bare URLs, which are uninformative and vulnerable to link rot. Please consider converting them to full citations to ensure the article remains verifiable and maintains a consistent citation style. Several templates and tools are available to assist in formatting, such as reFill (documentation) and Citation bot (documentation). (September 2022) (Learn how and when to remove this template message) Collage of the 2014 Israeli-Gaza conflict Media coverage of the 2014 Israel–Ga...

 

 

Cortobenzolone

Chemical compound CortobenzoloneClinical dataTrade namesTuplixOther namesBetamethasone salicylate; 9α-Fluoro-11β,16α,17α-trihydroxy-21-((2-hydroxybenzoyl)oxy)pregna-1,4-diene-3,20-dioneDrug classCorticosteroid; GlucocorticoidIdentifiers IUPAC name [2-[(8S,10S,11S,13S,14S,16R,17S)-9-Fluoro-11,16,17-trihydroxy-10,13-dimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl]-2-oxoethyl] 2-hydroxybenzoate CAS Number52619-32-6 65849-38-9PubChem CID191783ChemSpider166511Chemic...

 

 

1978–79 Temple Owls men's basketball team

American college basketball season 1978–79 Temple Owls men's basketballECC Regular season championsECC tournament championsNCAA tournament, First roundConferenceEast Coast ConferenceRankingCoachesNo. 16Record25–4 (10–0 ECC)Head coachDon Casey (6th season)Home arenaMcGonigle HallSeasons← 1977–781979–80 → 1978–79 ECC men's basketball standings vte Conf Overall Team W   L   PCT W   L   PCT East Temple † 10 – 0   1....

2023 New Zealand Track and Field Championships

Domestic athletics championship event International athletics championship event2023 New Zealand Track & Field ChampionshipsDates2–5 MarchHost cityWellingtonVenueNewtown Park← 2022 2024 → The 2023 New Zealand Athletics Championships was the national championship in outdoor track and field for New Zealand. It was held from 2–5 March at Newtown Park in Wellington. The 10,000 metres was held separately on 19 November 2022 and The Combined Events Championship (incorporating th...

 

 

Indonesian Naval Academy

Naval AcademyAkademi Angkatan LautMottoHree Dharma ShantiMotto in EnglishEmbarrassed of doing defects[1]TypeService academyEstablished10 October 1951; 72 years ago (10 October 1951)SuperintendentRADM Denih Hendrata DeanBGEN (M) Edy PrakosoLocationSurabaya, East Java, IndonesiaColorsBlue and WhiteAffiliationsIndonesian National Armed Forces Academy SystemMascotShark and SealWebsitewww.aal.ac.id The Naval Academy (Indonesian: Akademi Angkatan Laut or AAL) is a service ...

 

 

Lars Bender

Lars Bender Lars Bender berlatih bersama 1860 MunichInformasi pribadiTanggal lahir 27 April 1989 (umur 35)Tempat lahir Rosenheim, Jerman BaratTinggi 1,83 m (6 ft 0 in)Posisi bermain GelandangInformasi klubKlub saat ini Bayer LeverkusenNomor 8Karier junior1993–1999 TSV Brannenburg1999–2003 SpVgg Unterhaching2003–2006 1860 MunichKarier senior*Tahun Tim Tampil (Gol)2006–2009 1860 Munich 58 (4)2009– Bayer Leverkusen 72 (8)Tim nasional‡2005–2006 Jerman U-17 108 (...

富士五湖

富士山と富士五湖 富士山と富士五湖周辺の地形図左から本栖湖、精進湖、西湖、河口湖、山中湖である。左端中段やや下の小さな湖は人造湖の田貫湖でこれは富士五湖ではない 富士五湖（ふじごこ）は、山梨県側の富士山麓に位置する5つの湖の総称。下記の5つの湖を指す。富士急行の創設者である堀内良平によって命名された[1]。 本栖湖 〈もとすこ〉（富士河...

 

 

Moorefield, West Virginia

Town in West Virginia, United StatesMoorefield, West VirginiaTownHardy County Courthouse in Moorefield SealLocation of Moorefield in Hardy County, West Virginia.Coordinates: 39°4′N 78°58′W / 39.067°N 78.967°W / 39.067; -78.967CountryUnited StatesStateWest VirginiaCountyHardyGovernment • TypeMayor-council • MayorTim LuttrellArea[1] • Total2.77 sq mi (7.17 km2) • Land2.72 sq mi (7.0...

 

 

Pemilihan umum Bupati Karimun 2020

Pemilihan Umum Bupati Karimun 2020201520249 Desember 2020[1]Kandidat   Calon Aunur Rafiq Iskandarsyah Partai Partai Golongan Karya PKS Pendamping Anwar Hasyim Anwar Peta persebaran suara Peta Kepulauan Riau yang menyoroti Kabupaten Karimun Bupati dan Wakil Bupati petahanaAunur Rafiq danAnwar Hasyim Partai Golongan Karya Bupati dan Wakil Bupati terpilih Belum Diketahui Pemilihan Umum Bupati Karimun 2020 akan dilaksanakan pada 9 Desember 2020 untuk memilih Bupati Karimun periode 2...

كامينسك-شاختينسكي

كامينسك-شاختينسكي    علم شعار الاسم الرسمي (بالروسية: Каменск-Шахтинский)‏  الإحداثيات 48°19′00″N 40°16′00″E / 48.316666666667°N 40.266666666667°E / 48.316666666667; 40.266666666667   تاريخ التأسيس 1671  تقسيم إداري  البلد روسيا[1][2]  التقسيم الأعلى روستوف أوبلاست (13 سب�...

 

 

Élections législatives de 2012 dans l'Allier

2007 2017 Élections législatives de 2012 dans l'Allier 3 sièges de députés à l'Assemblée nationale 10 et 17 juin 2012 Corps électoral et résultats Inscrits 256 123 Votants au 1er tour 156 407   61,07 %  2,8 Votes exprimés au 1er tour 153 492 Votants au 2d tour 157 060   61,35 % Votes exprimés au 2d tour 151 425 Majorité présidentielle Liste Parti socialisteParti radical de gaucheFront de gaucheEurope Écologie Les VertsD...

 

 

Polisportiva Forza e Coraggio 1944-1945

Questa voce sull'argomento stagioni delle società calcistiche italiane è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti del progetto di riferimento. Voce principale: Avezzano Calcio. Polisportiva Forza e CoraggioStagione 1944-1945Sport calcio Squadra Avezzano Allenatore Stracuzzi Presidente Giuseppe Corradi, Raffaele Marino e Raffaele Tomassetti Campionato abruzzese di guerra3º posto. Ammessa in Serie C. 1945-1946 Si invita ...

Nigerian bandit conflict

Conflict between gangs and the Nigerian government Nigerian bandit conflictPart of Herder–farmer conflicts in NigeriaNigerian bandits in 2021Date2011–present[2]LocationThroughout northwest NigeriaStatus OngoingBelligerents Nigeria Nigeria Police Force Nigerian Armed Forces Nigerian Army Nigerian Air Force Vigilante groups Vigilante Group of Nigeria Various gangs Hausa militias Fulani militias Alleged involvement Islamic State's West Africa Province[1] Boko Haram Ansaru[...

 

 

西徳二郎

日本の政治家西 徳二郎にし とくじろう 生年月日 1847年9月4日（弘化4年7月25日）出生地 日本・薩摩国鹿児島城下（現：鹿児島県鹿児島市）没年月日 (1912-03-13) 1912年3月13日（64歳没）死没地 日本出身校 サンクトペテルブルク大学前職 外交官称号 正三位勲一等旭日大綬章男爵子女 西竹一 第13代外務大臣内閣 第2次松方内閣第3次伊藤内閣在任期間 1897年11月6日 - 1898年6月30日...

 

 

Oliver Stone

American filmmaker (born 1946) For the English cricketer, see Olly Stone. For the American portrait painter, see William Oliver Stone. Oliver StoneStone in 2016BornWilliam Oliver Stone (1946-09-15) September 15, 1946 (age 78)New York City, U.S.Alma materYale UniversityNew York University (BFA)OccupationsFilm directorscreenwriterproducerauthorYears active1971–presentSpouses Najwa Sarkis ​ ​(m. 1971; div. 1977)​ Elizabeth Burkit C...

Stanisław Burza

Polish speedway rider Stanisław BurzaBorn (1977-09-26) 26 September 1977 (age 47)Tuchów, PolandNationalityPolishCareer historyPoland1998-2006Tarnów2007Gniezno2008-2010, 2015Łódź2011Rivne2012, 2016, 2019Kraków2013-2014Opole2017Lublin2018Krosno2020RzeszówGreat Britain2006-2007, 2009Berwick Bandits2006Oxford Cheetahs2007-2008Coventry Bees2008Belle Vue Aces Individual honours2006Scottish Open Champion Team honours2004, 2005Polish Championship2007Elite League Championship Stanisław B...

 

 

Chin Pao San

Cemetery in Jinshan, New Taipei, Taiwan Chin Pao San金寶山Chin-Pao Mountain Cemetery hill, 2005DetailsLocationJinshan, New Taipei, TaiwanCoordinates25°15′04″N 121°36′14″E / 25.251°N 121.604°E / 25.251; 121.604TypeCemeteryFind a GraveChin Pao San Chin Pao San (also Jinbaoshan, Jiongbaoshan Chinese: 金寶山; pinyin: Jīnbǎo Shān; lit. 'Golden Treasure Mountain') is a private cemetery located on a mountainside in Jinshan District, New Ta...