{"id":733,"date":"2009-07-26T20:50:30","date_gmt":"2009-07-27T01:50:30","guid":{"rendered":"http:\/\/www.summet.com\/blog\/?p=733"},"modified":"2009-11-08T19:25:11","modified_gmt":"2009-11-09T00:25:11","slug":"the-175-electric-bike","status":"publish","type":"post","link":"https:\/\/www.summet.com\/blog\/2009\/07\/26\/the-175-electric-bike\/","title":{"rendered":"The $175 Electric Bike"},"content":{"rendered":"

\"Electric<\/a>
\nElectric bikes are expensive. Even if you buy the cheapest electric bike you can find on deep discount at walmart, it costs $300. (Formerly $400 before they deeply discounted it.) I decided to build my own out of surplus parts and things I could buy at the local Ace Hardware for less than $300. (Mostly, for the fun of the build.)<\/p>\n

So, I bought a surplus motor controller<\/a>, handlebar mounted throttle<\/a>, and a 250 watt electric motor. I bolted the motor to the front<\/a> of my used $20 bike, built a battery holder out of PVC pipes<\/a>, and made a vacuum formed cover<\/a>.
\n
\nNot counting the (high) cost of labor, here is my bill of materials:<\/p>\n

Item – Cost<\/strong><\/p>\n

24vdc 40A motor control – 32.95
\nTwo 12v 5AH sealed Lead Acid Battery – 32
\n250 watt PM motor – 25
\nUsed Bike – 20
\n#25 Roller chain – 10
\nTwist Grip Throttle – 12.75
\nConsumables (solder\/wire) – 10
\nPVC Pipe Joints (4 elbows, 2 t’s) – 4.74
\n90 tooth sprocket – 4
\nFour 10″\u009d bungee cords – 3.79
\nBicycle wheel hub – 3.5
\nFour M6 hex-cap bolts – 3
\n5 pack 25amp fuse – 2.99
\nAuto Hitch power supply connector – 2.34
\nFive feet PVC Pipe – 1.5
\nBlade Fuse Holder – 1.5
\nFour Fender Washer – 1.2
\nmotor controller case – 1
\n#25 Roller Chain master link – 1
\nFour 3\/16 quick connects – 0.2
\nTwo M10 1mm pitch nuts – 1.4<\/p>\n

Ebike Total: 174.86<\/strong><\/p>\n

Next projects: Adding lights for night biking<\/a>, and solar charging<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Electric bikes are expensive. Even if you buy the cheapest electric bike you can find on deep discount at walmart, it costs $300. (Formerly $400 before they deeply discounted it.) I decided to build my own out of surplus parts … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[68,72],"class_list":["post-733","post","type-post","status-publish","format-standard","hentry","category-projects","tag-ebike","tag-solar"],"_links":{"self":[{"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/posts\/733","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/comments?post=733"}],"version-history":[{"count":0,"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/posts\/733\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/media?parent=733"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/categories?post=733"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/tags?post=733"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}