{"id":323,"date":"2007-10-02T17:19:05","date_gmt":"2007-10-03T03:19:05","guid":{"rendered":"http:\/\/www.studionewmedia.com\/blog\/2007\/10\/02\/reborn\/"},"modified":"2007-10-02T17:19:05","modified_gmt":"2007-10-03T03:19:05","slug":"reborn","status":"publish","type":"post","link":"https:\/\/studionewmedia.com\/blog\/index.php\/2007\/10\/02\/reborn\/","title":{"rendered":"Reborn"},"content":{"rendered":"<p><a href=\"http:\/\/www.studionewmedia.com\/blog\/wp-content\/uploads\/2007\/10\/xtr_2243a.JPG\" title=\"xtr_2243a.JPG\"><img border=\"0\" vspace=\"5\" align=\"left\" src=\"http:\/\/www.studionewmedia.com\/blog\/wp-content\/uploads\/2007\/10\/xtr_2243a.thumbnail.JPG\" hspace=\"5\" alt=\"broken and new\" title=\"broken and new\" \/><\/a>In Whistler I had bumped my Shimano XTR rear derailleur on a boulder whilst rolling backwards, thus bending off the little tab on the B-axle (top pivot bolt) backplate that keeps the spring tension when the derailleur is unmounted.\u00c2\u00a0 Thankfully, Shimano sells the B-axle assembly as a set, so I had Jarrel bring one in for me.\u00c2\u00a0 I switched out to my spare RD-M971-GS so I could still ride my Ellsworth.\u00c2\u00a0 Last week the part came in, so I brought in the old derailleur to the shop and installed the new backplate.<!--more--><\/p>\n<p><a href=\"http:\/\/www.studionewmedia.com\/blog\/wp-content\/uploads\/2007\/10\/xtr_2244a.JPG\" title=\"xtr_2244a.JPG\"><img vspace=\"5\" align=\"left\" src=\"http:\/\/www.studionewmedia.com\/blog\/wp-content\/uploads\/2007\/10\/xtr_2244a.thumbnail.JPG\" hspace=\"5\" alt=\"B-axle set\" title=\"B-axle set\" \/><\/a>Replacing the plate is a little trickier than one would expect.\u00c2\u00a0 There is a lot of spring tension, both rotationally and axially, that has to be taken into consideration.\u00c2\u00a0 What worked for me was installing a 5mm hex key in a vise and mounting the derailleur on it via the B-axle.\u00c2\u00a0 I temporarily held the backplate onto the B-axle with a 10mm rear hub axle cone, and tightened it down until the stop tab was almost in contact with the upper forging.\u00c2\u00a0 Removing the B-tension screw, I put a small adjustable wrench on the\u00c2\u00a0screw tab and turned the plate into tension and aligned the tab with the end of the track in the upper forging.\u00c2\u00a0\u00c2\u00a0At this point\u00c2\u00a0I tightened the axle cone, thus driving the backplate\u00c2\u00a0fully onto the B-axle.\u00c2\u00a0 Holding the plate down with a small flat screwdriver in the c-clip\u00c2\u00a0groove, I removed the axle cone and installed the c-clip.\u00c2\u00a0 All done.\u00c2\u00a0The process would probably be easier with another hand or two, but would be virtually impossible without the vise or some other means to hold a hex key as a mounting base for the work.\u00c2\u00a0 I used the hub cone because it was difficult to both turn the plate into tension and push it down at the same time.<\/p>\n<p>$18 part saves a $180 derailleur!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Whistler I had bumped my Shimano XTR rear derailleur on a boulder whilst rolling backwards, thus bending off the little tab on the B-axle (top pivot bolt) backplate that keeps the spring tension when the derailleur is unmounted.\u00c2\u00a0 Thankfully, Shimano sells the B-axle assembly as a set, so I had Jarrel bring one in [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true},"categories":[5],"tags":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/saJYlx-reborn","_links":{"self":[{"href":"https:\/\/studionewmedia.com\/blog\/index.php\/wp-json\/wp\/v2\/posts\/323"}],"collection":[{"href":"https:\/\/studionewmedia.com\/blog\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/studionewmedia.com\/blog\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/studionewmedia.com\/blog\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/studionewmedia.com\/blog\/index.php\/wp-json\/wp\/v2\/comments?post=323"}],"version-history":[{"count":0,"href":"https:\/\/studionewmedia.com\/blog\/index.php\/wp-json\/wp\/v2\/posts\/323\/revisions"}],"wp:attachment":[{"href":"https:\/\/studionewmedia.com\/blog\/index.php\/wp-json\/wp\/v2\/media?parent=323"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/studionewmedia.com\/blog\/index.php\/wp-json\/wp\/v2\/categories?post=323"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/studionewmedia.com\/blog\/index.php\/wp-json\/wp\/v2\/tags?post=323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}