Chain rings are either held together by rivets or bolts. Avoid owning a bike with chain ring rivets if possible, as you will have to destroy your chain rings and your right crank arm if you need to take apart/ repair the chain rings for any reason.
Taking apart bolted chain rings requires one special tool. It has a notched head designed to fit a chain ring nut. Any bike shop should have them.[1]
Start request GET /wiki/Chain_rings
IP: 172.18.0.2
HTTP HEADERS:
ACCEPT-ENCODING: gzip, br, zstd, deflate
USER-AGENT: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
ACCEPT: */*
X-ORIGINAL-URI: /wiki/Chain_rings
X-FORWARDED-PORT: 443
X-FORWARDED-SSL: on
X-FORWARDED-PROTO: https
X-FORWARDED-FOR: 13.59.36.4
X-REAL-IP: 13.59.36.4
CONNECTION: close
HOST: wiki2.bikelover.org
CONTENT-LENGTH:
CONTENT-TYPE:
(end headers)[session] SessionManager using store APCUBagOStuff[localisation] LocalisationCache using store LCStoreCDB[session] SessionBackend "0ruiueuq7ia1uvdrh90aoei7vs8062vj" is unsaved, marking dirty in constructor[session] SessionBackend "0ruiueuq7ia1uvdrh90aoei7vs8062vj" save: dataDirty=1 metaDirty=1 forcePersist=0[cookie] already deleted setcookie: "bikebike_mw__session", "", "1704594332", "/", "", "1", "1", ""[cookie] already deleted setcookie: "bikebike_mw_UserID", "", "1704594332", "/", "", "1", "1", ""[cookie] already deleted setcookie: "bikebike_mw_Token", "", "1704594332", "/", "", "1", "1", ""[cookie] already deleted setcookie: "forceHTTPS", "", "1704594332", "/", "", "", "1", ""[session] SessionBackend "0ruiueuq7ia1uvdrh90aoei7vs8062vj" data dirty due to dirty(): MediaWiki\Session\SessionManager->getSessionForRequest/MediaWiki\Session\SessionManager->getInitialSession/MediaWiki\Session\Session->getToken/MediaWiki\Session\Session->set/MediaWiki\Session\SessionBackend->dirty[session] SessionBackend "0ruiueuq7ia1uvdrh90aoei7vs8062vj" save: dataDirty=1 metaDirty=0 forcePersist=0[SQLBagOStuff] MainObjectStash using store ReplicatedBagOStuff[DBQuery] Wikimedia\Rdbms\DatabaseMysqlBase::open [0s] database_staging: SET group_concat_max_len = 262144, `sql_mode` = ''[DBReplication] Wikimedia\Rdbms\LBFactory::getChronologyProtector: request info {
"IPAddress": "172.18.0.2",
"UserAgent": "Mozilla\/5.0 AppleWebKit\/537.36 (KHTML, like Gecko; compatible; ClaudeBot\/1.0; +claudebot@anthropic.com)",
"ChronologyProtection": false,
"ChronologyPositionIndex": 0,
"ChronologyClientId": false
}[DBReplication] ChronologyProtector using store APCUBagOStuff[DBReplication] ChronologyProtector fetching positions for 00aba87f0d2b34d22fa7da60bd405aff[DBReplication] Wikimedia\Rdbms\ChronologyProtector::applySessionReplicationPosition: DEFAULT (database_staging) has no position[DBConnection] Wikimedia\Rdbms\LoadBalancer::lazyLoadReplicationPositions: executed chronology callback.[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: opened new connection for local/0[DBQuery] Wikimedia\Rdbms\Database::beginIfImplied (WikiPage::pageData) [0s] database_staging: BEGIN[DBQuery] WikiPage::pageData [0.001s] database_staging: SELECT page_id,page_namespace,page_title,page_is_redirect,page_is_new,page_random,page_touched,page_links_updated,page_latest,page_len,page_content_model FROM `mw_page` WHERE page_namespace = 0 AND page_title = 'Chain_rings' LIMIT 1[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for local/0[DBQuery] MediaWiki\Revision\RevisionStore::fetchRevisionRowFromConds [0.001s] database_staging: SELECT rev_id,rev_page,rev_timestamp,rev_minor_edit,rev_deleted,rev_len,rev_parent_id,rev_sha1,comment_rev_comment.comment_text AS `rev_comment_text`,comment_rev_comment.comment_data AS `rev_comment_data`,comment_rev_comment.comment_id AS `rev_comment_cid`,actor_rev_user.actor_user AS `rev_user`,actor_rev_user.actor_name AS `rev_user_text`,rev_actor,page_namespace,page_title,page_id,page_latest,page_is_redirect,page_len,user_name FROM `mw_revision` JOIN `mw_revision_comment_temp` `temp_rev_comment` ON ((temp_rev_comment.revcomment_rev = rev_id)) JOIN `mw_comment` `comment_rev_comment` ON ((comment_rev_comment.comment_id = temp_rev_comment.revcomment_comment_id)) JOIN `mw_actor` `actor_rev_user` ON ((actor_rev_user.actor_id = rev_actor)) JOIN `mw_page` ON ((page_id = rev_page)) LEFT JOIN `mw_user` ON ((actor_rev_user.actor_user != 0) AND (user_id = actor_rev_user.actor_user)) WHERE rev_id = 5339 LIMIT 1[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for local/0[DBQuery] MediaWiki\Revision\RevisionStore::loadSlotRecordsFromDb [0.001s] database_staging: SELECT slot_revision_id,slot_content_id,slot_origin,slot_role_id,content_size,content_sha1,content_address,content_model FROM `mw_slots` JOIN `mw_content` ON ((slot_content_id = content_id)) WHERE slot_revision_id = 5339[ContentHandler] Registered handler for wikitext: WikitextContentHandler[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for local/0[DBQuery] WikiPage::getRedirectTarget [0.001s] database_staging: SELECT rd_namespace,rd_title,rd_fragment,rd_interwiki FROM `mw_redirect` WHERE rd_from = 1789 LIMIT 1[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for local/0[DBQuery] WikiPage::pageData [0.001s] database_staging: SELECT page_id,page_namespace,page_title,page_is_redirect,page_is_new,page_random,page_touched,page_links_updated,page_latest,page_len,page_content_model FROM `mw_page` WHERE page_namespace = 0 AND page_title = 'Chainrings' LIMIT 1[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for local/0[DBQuery] MediaWiki\Revision\RevisionStore::fetchRevisionRowFromConds [0.001s] database_staging: SELECT rev_id,rev_page,rev_timestamp,rev_minor_edit,rev_deleted,rev_len,rev_parent_id,rev_sha1,comment_rev_comment.comment_text AS `rev_comment_text`,comment_rev_comment.comment_data AS `rev_comment_data`,comment_rev_comment.comment_id AS `rev_comment_cid`,actor_rev_user.actor_user AS `rev_user`,actor_rev_user.actor_name AS `rev_user_text`,rev_actor,page_namespace,page_title,page_id,page_latest,page_is_redirect,page_len,user_name FROM `mw_revision` JOIN `mw_revision_comment_temp` `temp_rev_comment` ON ((temp_rev_comment.revcomment_rev = rev_id)) JOIN `mw_comment` `comment_rev_comment` ON ((comment_rev_comment.comment_id = temp_rev_comment.revcomment_comment_id)) JOIN `mw_actor` `actor_rev_user` ON ((actor_rev_user.actor_id = rev_actor)) JOIN `mw_page` ON ((page_id = rev_page)) LEFT JOIN `mw_user` ON ((actor_rev_user.actor_user != 0) AND (user_id = actor_rev_user.actor_user)) WHERE rev_id = 5456 LIMIT 1[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for local/0[DBQuery] MediaWiki\Revision\RevisionStore::loadSlotRecordsFromDb [0.006s] database_staging: SELECT slot_revision_id,slot_content_id,slot_origin,slot_role_id,content_size,content_sha1,content_address,content_model FROM `mw_slots` JOIN `mw_content` ON ((slot_content_id = content_id)) WHERE slot_revision_id = 5456[MessageCache] MessageCache using store APCUBagOStuff[MessageCache] MessageCache::loadUnguarded: Loading en... got from local cacheParserFactory: using default preprocessorContextSource::getContext (MediaWiki\Skins\Vector\SkinVector22): called and $context is null. Using RequestContext::getMain()[ParserCache] Creating ParserCache instance for pcache[ParserCache] Creating RevisionOutputCache instance for rcacheUnstubbing $wgLang on call of $wgLang::getDatePreferenceMigrationMap from ParserOptions::initDateFormat[DBQuery] Wikimedia\Rdbms\DatabaseMysqlBase::open [0s] database_staging: SET group_concat_max_len = 262144, `sql_mode` = ''[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: opened new connection for localAutoCommit/0[DBQuery] SqlBagOStuff::fetchBlobs [0.001s] database_staging: SELECT keyname,value,exptime FROM `mw_objectcache` WHERE keyname = 'bikebike-mw_:pcache:idoptions:2377' AND (exptime >= '20250106022532')[SQLBagOStuff] SqlBagOStuff debug: SqlBagOStuff::fetchBlobs: retrieved bikebike-mw_:pcache:idoptions:2377; expiry time is 20250108173538[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for localAutoCommit/0[ParserCache] Parser cache options found[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for localAutoCommit/0[DBQuery] SqlBagOStuff::fetchBlobs [0s] database_staging: SELECT keyname,value,exptime FROM `mw_objectcache` WHERE keyname = 'bikebike-mw_:pcache:idhash:2377-0!canonical' AND (exptime >= '20250106022532')[SQLBagOStuff] SqlBagOStuff debug: SqlBagOStuff::fetchBlobs: retrieved bikebike-mw_:pcache:idhash:2377-0!canonical; expiry time is 20250108173538[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for localAutoCommit/0[ParserCache] ParserOutput cache found[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for local/0[DBQuery] OutputPage::addCategoryLinksToLBAndGetResult [0.001s] database_staging: SELECT page_id,page_namespace,page_title,page_is_redirect,page_is_new,page_latest,page_touched,page_len,page_content_model,pp_value FROM `mw_page` LEFT JOIN `mw_page_props` ON (pp_propname = 'hiddencat' AND (pp_page = page_id)) WHERE ((page_namespace = 14 AND page_title = 'Bicycle_Parts'))[DBQuery] MediaWiki::preOutputCommit [0s] database_staging: COMMITMediaWiki::preOutputCommit: primary transaction round committed[DeferredUpdates] DeferredUpdates::run: started MWCallableUpdate_WikiPage->doViewUpdates #640[DeferredUpdates] DeferredUpdates::run: ended MWCallableUpdate_WikiPage->doViewUpdates #640, processing time: 8.6069107055664E-5MediaWiki::preOutputCommit: pre-send deferred updates completedMediaWiki::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 completedOutputPage::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 = 'Chainrings')[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[DBConnection] Wikimedia\Rdbms\LoadBalancer::getLocalConnection: reused a connection for local/0[DBQuery] MediaWiki\Permissions\RestrictionStore::loadRestrictions [0.001s] database_staging: SELECT pr_type,pr_expiry,pr_level,pr_cascade FROM `mw_page_restrictions` WHERE pr_page = 2377[gitinfo] Candidate cacheFile=/var/www/html/w/gitinfo.json for /var/www/html/w[gitinfo] Cache incomplete for /var/www/html/w