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  1. J

    System (U, Motor, Controller) Efficiency

    I know we got an ebike, but some of us chose to pedal assist to get some exercise or just give our motor a chance for cooling. I'm interested in what you guys are achieving for efficiency. I think this will help us make a better bike in the long run. So what's your total overall system...
  2. J

    BMC Motor Burnout!

    I finally got the extended battery back to my bike mounted properly. I decided to make a run to the local hill to test out the performance of the batteries. About 6 miles into my trip up a 1500' ascend the motor cuts out. No pop, no nothing. I still got power to the controller but no throttle...
  3. J

    Jonathan's 44 lbs Specialized FSR S-Works

    This is my 2nd bike that I put together. The first one was a learner hardtail Rockhopper. Not quite my cup of tea. So I'm out on a quest to make a sub 50 lbs bike that can do 35+ mph. Here's what I got. 1. Donor Specialized S-Works 2. BMC Gear Hub (evtech) 3. Crystalyte 24-72V 35A Analog...
  4. J

    Need to put an Ump in my BMC

    Guys, I got myself an EVTech BMC motor. The motor is very well built with plenty of torque. But running stock @ 36V there's just not enough at the high end. Top speed is less than 20 mph. Is there something I can do to get into the 30mph range. I heard that the clyte controller 36-72V no...
  5. J

    Makita Battery Dock

    After I order all the parts to make my super light ebike. I'm now sitting impatiently twiddling my thumbs :arrow: :arrow: :arrow: waiting for parts to arrived. So to make better use of my time, I decided to put together my battery solution. I've been a fan of Lithium Ions for quite...
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