{"id":42130,"date":"2019-10-30T18:32:55","date_gmt":"2019-10-30T09:32:55","guid":{"rendered":"https:\/\/www.decoboco.info\/en\/?p=42130"},"modified":"2026-09-24T13:45:12","modified_gmt":"2026-09-24T04:45:12","slug":"z1000r1-lawson-replica-brake-caliper-oh-master-hose","status":"publish","type":"post","link":"https:\/\/www.decoboco.info\/en\/20191030\/everyday-events\/z1000r1-lawson-replica-brake-caliper-oh-master-hose","title":{"rendered":"\u2461Z1000R1 Lawson Replica Brake Caliper OH Brake Master OH Brake Hose Fabrication"},"content":{"rendered":"
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This is a continuation of the eternal idol? Z1000R1 (Lawson Replica). <\/p>\n\n\n\n\n\n\n\n

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The key points of caliper OH are
\u00b7 thoroughly remove aluminum corrosion and debris
\u00b7 uniformize the corroded surface
\u00b7 replace seals with new ones
\u00b7 assemble with CCI MR20 metal rubber <\/p>\n\n\n\n

In a way, it’s similar to treating a cavity. <\/p>\n\n\n\n

Surface corrosion is unavoidable to some extent, but if “corrosion debris” remains,
corrosion will develop from there again. <\/p>\n\n\n\n

And it pushes the seal inward, degrading operation. <\/p>\n\n\n\n

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We replace the piston with a new one while it’s out. The face of the pad-pushing plate has gotten wider… (countermeasure? improvement?) <\/p>\n\n\n\n

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Let’s inspect old and new parts and assemble them. The pistons are the same size. The return spring free length has increased. *Countermeasure? Improvement? Common? It’s pretty subtle… <\/p>\n\n\n\n

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Here’s the rear master cup and piston. <\/p>\n\n\n\n

I ordered according to the part number, but… is it a mix of R2 and something else? <\/p>\n\n\n\n

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In the end, only the body was usable, so we decided to replace the rear master assembly. 43015-1134 \u2190 Just barely safe ~ now discontinued… <\/p>\n\n\n\n

Vintage bikes are scary, aren’t they?
Not that we can’t adapt anything for installation.

With adaptation,
machining charges add up, so it ends up being more expensive\u2014original is the best! <\/p>\n\n\n\n

That’s how it is. I’m pondering it quietly. <\/p>\n","protected":false},"excerpt":{"rendered":"

This is a continuation of the eternal idol? Z1000R1 (Lawson Replica).<\/p>\n","protected":false},"author":2,"featured_media":42109,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"pochipp_cv_data":"","swell_btn_cv_data":"","footnotes":""},"categories":[1924],"tags":[207,161,115],"class_list":["post-42130","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-everyday-events","tag-brake-caliper-oh","tag-sus-brake-hose","tag-z-aircooled"],"_links":{"self":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/posts\/42130","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/comments?post=42130"}],"version-history":[{"count":0,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/posts\/42130\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/media\/42109"}],"wp:attachment":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/media?parent=42130"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/categories?post=42130"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/tags?post=42130"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}