{"id":235,"date":"2019-05-18T15:19:54","date_gmt":"2019-05-18T13:19:54","guid":{"rendered":"https:\/\/jakob-volkmer.de\/?p=235"},"modified":"2021-07-22T18:05:18","modified_gmt":"2021-07-22T16:05:18","slug":"umbau-zum-ebike","status":"publish","type":"post","link":"https:\/\/jakob-volkmer.de\/en\/umbau-zum-ebike\/","title":{"rendered":"E-bike conversion"},"content":{"rendered":"<div>There were two good reasons for converting my \"luxury\" mountain bike (BTWIN RockRider 540) into an e-bike: Not wanting to study for my A-levels. And living in a village in the Allg\u00e4u, which is 100 metres above and six kilometres from Kempten - which is why my daily commute to school by bike is only fun in one direction. So I put my German things away, watched lots of tutorials and then ordered some nice components from AliExpress. It was clear relatively early on that I would use a brushless hub motor (36V, 300W) for the rear axle. It is controlled by an ordinary Arduino board, a cheap, indestructible Nokia display and a 500W motor controller. The pedal sensor never worked properly - which is why I decided to switch the motor on and off with buttons on the handlebars. It's perhaps more like a moped than an e-bike. But it's definitely more comfortable. Without pedalling, my bike goes at 22 km\/h - with pedalling, it is theoretically open at the top, because I accidentally forgot to throttle the motor to 25 km\/h.\n\nTranslated with DeepL.com (free version)&nbsp;<\/div>\n<div>&nbsp;<\/div>\n\n\n<style>#jtg-391 .modula-item .jtg-social a, .lightbox-socials.jtg-social a{ color: #ffffff }#jtg-391 .modula-item .jtg-social svg, .lightbox-socials.jtg-social svg { height: 16px; width: 16px }#jtg-391 .modula-item .jtg-social a:not(:last-child), .lightbox-socials.jtg-social a:not(:last-child) { margin-right: 10px }#jtg-391 .modula-item .figc {color:#ffffff;}#jtg-391 .modula-item .modula-item-content { transform: scale(1) }#jtg-391 .modula-items .figc p.description { font-size:14px; }#jtg-391 .modula-items .figc p.description { color:#ffffff;}#jtg-391.modula-gallery .modula-item > a, #jtg-391.modula-gallery .modula-item, #jtg-391.modula-gallery .modula-item-content > a:not(.modula-no-follow) { cursor:zoom-in; } #jtg-391.modula-gallery .modula-item-content .modula-no-follow { cursor: default; } @media screen and (max-width:480px){#jtg-391 .modula-item .figc .jtg-title {  font-size: 12px; }#jtg-391 .modula-items .figc p.description { color:#ffffff;font-size:10px; }}<\/style>\n<!-- Gallery Container -->\n<div  id=\"jtg-391\" class=\"modula modula-gallery modula-custom-grid\" data-config=\"{&quot;height&quot;:800,&quot;tabletHeight&quot;:800,&quot;mobileHeight&quot;:800,&quot;desktopHeight&quot;:800,&quot;enableTwitter&quot;:false,&quot;enableWhatsapp&quot;:false,&quot;enableFacebook&quot;:false,&quot;enablePinterest&quot;:false,&quot;enableLinkedin&quot;:false,&quot;enableEmail&quot;:false,&quot;randomFactor&quot;:0.5,&quot;type&quot;:&quot;custom-grid&quot;,&quot;columns&quot;:12,&quot;gutter&quot;:10,&quot;mobileGutter&quot;:10,&quot;tabletGutter&quot;:10,&quot;desktopGutter&quot;:10,&quot;enableResponsive&quot;:&quot;1&quot;,&quot;tabletColumns&quot;:&quot;2&quot;,&quot;mobileColumns&quot;:&quot;1&quot;,&quot;lazyLoad&quot;:&quot;0&quot;,&quot;lightboxOpts&quot;:{&quot;loop&quot;:false,&quot;arrows&quot;:true,&quot;toolbar&quot;:true,&quot;keyboard&quot;:true,&quot;wheel&quot;:false,&quot;buttons&quot;:[&quot;close&quot;],&quot;hash&quot;:false,&quot;lang&quot;:&quot;en&quot;,&quot;touch&quot;:false,&quot;protect&quot;:false,&quot;i18n&quot;:{&quot;en&quot;:{&quot;CLOSE&quot;:&quot;Close&quot;,&quot;NEXT&quot;:&quot;Next&quot;,&quot;PREV&quot;:&quot;Previous&quot;,&quot;Error&quot;:&quot;The requested content cannot be loaded. Please try again later.&quot;,&quot;PLAY_START&quot;:&quot;Start slideshow&quot;,&quot;PLAY_STOP&quot;:&quot;Pause slideshow&quot;,&quot;FULL_SCREEN&quot;:&quot;Full screen&quot;,&quot;THUMBS&quot;:&quot;Thumbnails&quot;,&quot;DOWNLOAD&quot;:&quot;Download&quot;,&quot;SHARE&quot;:&quot;Share&quot;,&quot;ZOOM&quot;:&quot;Zoom&quot;}},&quot;clickSlide&quot;:false,&quot;clickOutside&quot;:false,&quot;dblclickContent&quot;:false,&quot;dblclickSlide&quot;:false,&quot;dblclickOutside&quot;:false,&quot;clickContent&quot;:false,&quot;baseTpl&quot;:&quot;&lt;div class=\\&quot;modula-fancybox-container modula-lightbox-jtg-391\\&quot; role=\\&quot;dialog\\&quot; tabindex=\\&quot;-1\\&quot;&gt;&lt;div class=\\&quot;modula-fancybox-bg\\&quot;&gt;&lt;\\\/div&gt;&lt;div class=\\&quot;modula-fancybox-inner\\&quot;&gt;&lt;div class=\\&quot;modula-fancybox-infobar\\&quot;&gt;&lt;span data-fancybox-index&gt;&lt;\\\/span&gt;&nbsp;\\\/&nbsp;&lt;span data-fancybox-count&gt;&lt;\\\/span&gt;&lt;\\\/div&gt;&lt;div class=\\&quot;modula-fancybox-toolbar\\&quot;&gt;{{buttons}}&lt;\\\/div&gt;&lt;div class=\\&quot;modula-fancybox-navigation\\&quot;&gt;{{arrows}}&lt;\\\/div&gt;&lt;div class=\\&quot;modula-fancybox-stage\\&quot;&gt;&lt;\\\/div&gt;&lt;div class=\\&quot;modula-fancybox-caption\\&quot;&gt;&lt;div class=\\&quot;modula-fancybox-caption__body\\&quot;&gt;&lt;\\\/div&gt;&lt;\\\/div&gt;&lt;\\\/div&gt;&lt;\\\/div&gt;&quot;},&quot;inView&quot;:false,&quot;email_subject&quot;:&quot;Check out this awesome image !!&quot;,&quot;email_message&quot;:&quot;Here is the link to the image : %%image_link%% and this is the link to the gallery : %%gallery_link%%&quot;,&quot;lightbox&quot;:&quot;fancybox&quot;}\">\n\n\t\n\t<!-- Items Container -->\n\t<div  class=\"modula-items\">\n\t\t<div class=\"modula-item effect-pufrobo\" data-width=\"4\" data-height=\"3\" >\n\t<div class=\"modula-item-overlay\"><\/div>\n\n\t<div class=\"modula-item-content\">\n\n\t\t\t\t\n\t\t\t\t\t<a data-image-id=\"315\" rel=\"jtg-391\" data-caption=\"\" aria-label=\"Open image in lightbox\" class=\"tile-inner modula-item-link\"><\/a>\n\t\t\n\t\t<img loading=\"lazy\" decoding=\"async\" class=\"pic wp-image-315\"  data-valign=\"middle\" data-halign=\"center\" alt=\"\" data-full=\"https:\/\/jakob-volkmer.de\/wp-content\/uploads\/2020\/09\/Ebike-Kabel.jpg\" title=\"Ebike - 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komplett\" width=\"300\" height=\"200\" src=\"https:\/\/jakob-volkmer.de\/wp-content\/uploads\/2020\/09\/Ebike-komplett-300x200.jpg\" data-src=\"https:\/\/jakob-volkmer.de\/wp-content\/uploads\/2020\/09\/Ebike-komplett-300x200.jpg\" data-caption=\"\"srcset=\"https:\/\/jakob-volkmer.de\/wp-content\/uploads\/2020\/09\/Ebike-komplett-scaled.jpg 2560w, https:\/\/jakob-volkmer.de\/wp-content\/uploads\/2020\/09\/Ebike-komplett-300x200.jpg 300w, https:\/\/jakob-volkmer.de\/wp-content\/uploads\/2020\/09\/Ebike-komplett-1024x683.jpg 1024w, https:\/\/jakob-volkmer.de\/wp-content\/uploads\/2020\/09\/Ebike-komplett-768x512.jpg 768w, https:\/\/jakob-volkmer.de\/wp-content\/uploads\/2020\/09\/Ebike-komplett-1536x1024.jpg 1536w, https:\/\/jakob-volkmer.de\/wp-content\/uploads\/2020\/09\/Ebike-komplett-2048x1365.jpg 2048w\" sizes=\"(max-width: 300px) 100vw, 300px\"\" \/>\n\t\t<div class=\"figc no-description\">\n\t\t\t<div class=\"figc-inner\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\n\t<\/div>\n\n<\/div>\t\t\n\t<\/div>\n\n\t\n\t\n\t<script type=\"application\/ld+json\">\n\t{\n\t\t\"@context\": \"http:\/\/schema.org\",\n\t\t\"@type\"   : \"ImageGallery\",\n\t\t\"id\"      : \"https:\/\/jakob-volkmer.de\/en\/wp-json\/wp\/v2\/posts\/235\",\n\t\t\"url\"     : \"https:\/\/jakob-volkmer.de\/en\/wp-json\/wp\/v2\/posts\/235\"\n\t}\n\n    <\/script>\n\n\t\n<\/div>\n\n\n<div>\u00a0<\/div>\n<div>I wanted to DIY the battery (36V \/ 10Ah) too, I thought. There are 30 cells (type 18650) in a downpipe from the hardware store. Unfortunately, I only later realised that you need a special spot welder for this. So I went to the rubbish depot, got an old microwave and removed the transformer. The control unit for my self-build spot-welder, like almost everything else, comes from China. Voil\u00e0, there's my 5\u20ac welding machine. To make it easy to remove the battery block, I came up with a holder like a drinking bottle. To be absolutely sure that the batteries don't fly out while driving, the holder is welded from solid steel, which has unfortunately increased the weight considerably.\u00a0<\/div>\n<div>\u00a0<\/div>\n<div>One of the many unexpected problems was the conversion of the rear disc brake. Because of the hub motor, it had to be repositioned, of course. Today I would simply use shoe brakes. But the two-month project paid off: One charge gets me over 40 kilometres - that's about 3 times to school and back. And I also somehow managed to pass my A-levels. \u00a0<\/div>","protected":false},"excerpt":{"rendered":"<p>Es gab zwei gute Gr\u00fcnde, mein &#8220;Luxus&#8221;-Mountain-Bike (BTWIN RockRider 540) in ein E-Bike zu verwandeln: Keine Lust aufs Abi zu lernen. Und in einem Allg\u00e4uer Dorf zu wohnen, welches 100 Meter \u00fcber und sechs Kilometer neben Kempten liegt &#8211; weswegen mein t\u00e4glicher Schulweg mit dem Rad nur in einer Richtung Spa\u00df macht. Also Deutschsachen weglegen, [&hellip;]<\/p>","protected":false},"author":1,"featured_media":317,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[5],"tags":[],"_links":{"self":[{"href":"https:\/\/jakob-volkmer.de\/en\/wp-json\/wp\/v2\/posts\/235"}],"collection":[{"href":"https:\/\/jakob-volkmer.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jakob-volkmer.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jakob-volkmer.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jakob-volkmer.de\/en\/wp-json\/wp\/v2\/comments?post=235"}],"version-history":[{"count":12,"href":"https:\/\/jakob-volkmer.de\/en\/wp-json\/wp\/v2\/posts\/235\/revisions"}],"predecessor-version":[{"id":647,"href":"https:\/\/jakob-volkmer.de\/en\/wp-json\/wp\/v2\/posts\/235\/revisions\/647"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jakob-volkmer.de\/en\/wp-json\/wp\/v2\/media\/317"}],"wp:attachment":[{"href":"https:\/\/jakob-volkmer.de\/en\/wp-json\/wp\/v2\/media?parent=235"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jakob-volkmer.de\/en\/wp-json\/wp\/v2\/categories?post=235"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jakob-volkmer.de\/en\/wp-json\/wp\/v2\/tags?post=235"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}