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  1. R

    Went over a bump: noisy hub now

    A little background first: I've been struggling with my bike for a while now. First the original controller decided to die a silent death. No magic smoke was produced. Just working and then not. Not even pfft. That was 2012. Aw crap, so I ordered a YK85S 36V/48V 250W/350W off of eBay. MISTAKE...
  2. R

    YK85 Controller (wont run)

    I purchased one of these to replace a "no-name" controller that quit on me, but I am having some problems getting it to work for me. This is a 36/48V 250/350W brushless controller made by Yi-Yun http://www.yiyun.cn/ I got a diagram for it from an Italian forum...
  3. R

    Sudden death and two months to replacement!

    OK, so I've been EV'ing it for a year and a half, had been dying to get into it for five years. Year and a half ago I bought an electric bike at a local retailer -- no kind of documentation, instructions, not even what brands of motor/controller and so on. I felt kind of lucky to find one in...
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