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Bottom bracket: Difference between revisions

From Bike Collectives Wiki

Revision as of 06:48, 16 October 2007

File:Bottom bracket exploded.jpg

Diagram of a cup & cone bottom bracket

Bottom Brackets are what your crank arms attach to spin.

Types

Cartridge or Sealed

Identified off the bike by the roughly 1" tubing around the axle.

Cup & Cone/ Unsealed

These have a lock ring and have either a threaded or cotter pin axle.

One Piece

Commonly found on inexpensive BMX bikes.

References

Retrieved from "https://wiki2.bikelover.org/wiki/index.php?title=Bottom_bracket&oldid=5065"

Category:

Pages with broken file links

Debug data:

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[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for local/0
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[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for local/0
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[ParserCache] Creating ParserCache instance for pcache
[ParserCache] Creating RevisionOutputCache instance for rcache
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[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for local/0
[DBQuery] LinkHolderArray::replaceInternal [0s] database_staging: SELECT page_id,page_namespace,page_title,page_is_redirect,page_is_new,page_latest,page_touched,page_len,page_content_model FROM `mw_page` WHERE ((page_namespace = 0 AND page_title IN ('Crank_arms','Cartridge_or_Sealed','Cup_&_Cone/_Unsealed','Threaded','Cotter_pin','One_Piece') ))
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[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for local/0
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[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for local/0
[DBQuery] MediaWiki\Revision\RevisionStore::getRelativeRevision [0s] database_staging: SELECT rev_id FROM `mw_revision` IGNORE INDEX (rev_timestamp) WHERE rev_page = 1784 AND (rev_timestamp > '20071016064233' OR (rev_timestamp = '20071016064233' AND rev_id > 5064 )) ORDER BY rev_timestamp ASC,rev_id ASC LIMIT 1
[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for local/0
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[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for local/0
[DBQuery] Wikimedia\Rdbms\DatabaseMysqlBase::serverIsReadOnly [0s] database_staging: SELECT @@GLOBAL.read_only AS Value
[DBQuery] MediaWiki::preOutputCommit [0s] database_staging: COMMIT
MediaWiki::preOutputCommit: primary transaction round committed
[DeferredUpdates] DeferredUpdates::run: started MWCallableUpdate_WikiPage->doViewUpdates #784
[DeferredUpdates] DeferredUpdates::run: ended MWCallableUpdate_WikiPage->doViewUpdates #784, processing time: 7.7962875366211E-5
MediaWiki::preOutputCommit: pre-send deferred updates completed
MediaWiki::preOutputCommit: session changes committed
[DBReplication] Wikimedia\Rdbms\ChronologyProtector::persistSessionReplicationPositions: no primary positions/timestamps to save
[DBReplication] Wikimedia\Rdbms\LBFactory::shutdown: finished ChronologyProtector shutdown
[DBReplication] LBFactory shutdown completed
OutputPage::haveCacheVaryCookies: no cache-varying cookies found
[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for local/0
[DBQuery] Wikimedia\Rdbms\Database::beginIfImplied (LinkBatch::doQuery (for Skin::preloadExistence)) [0s] database_staging: BEGIN
[DBQuery] LinkBatch::doQuery (for Skin::preloadExistence) [0s] database_staging: SELECT page_id,page_namespace,page_title,page_is_redirect,page_is_new,page_latest,page_touched,page_len,page_content_model FROM `mw_page` WHERE (page_namespace = 1 AND page_title = 'Bottom_bracket')
[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for local/0
[DBQuery] MediaWiki\User\TalkPageNotificationManager::dbCheckNewUserMessages [0s] database_staging: SELECT user_ip FROM `mw_user_newtalk` WHERE user_ip = '172.18.0.2' LIMIT 1
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@@ Line 19: / Line 19: @@
 === References ===
+* [http://en.wikibooks.org/wiki/Bicycles/Maintenance_and_Repair/Bottom_Brackets/Bottom_bracket_overhaul Wikibooks bottom bracket overhaul manual]
+* [http://www.parktool.com/repair/readhowto.asp?id=94 Park Tools cartridge bottom bracket service guide]
 * [http://www.sheldonbrown.com/gloss_bo-z.html Sheldon Brown's Bottom Bracket Definition]