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What motor next

Old 09-13-10, 08:05 PM
  #1  
cvenstrom
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Cool What motor next

I have spent a lot of time recently searching for my next electric bike motors. I am not satisfied with our(my wife has one) 2 bikes. Last week we went for a ride 2.5 miles each way. The temperature was 78 degrees F with a nice breeze. Our motors were quite hot to the touch after less than a mile. After 2.5 I decided we needed to let them cool off for 15 minutes. On the way back they heated up almost immediately to the point you couldn't touch them for more than 5-7 seconds & I had just received a replacement from the manufactuer-vendor. We used 3/4 or less throttle. My bike has a cyclone 1200W & my wife's a 900W.

For the last few weeks I have been looking at the 9 continents 6x10 motor that was discussed in the Hub Motor Meatoff on Endless -sphere then today I found an artilce online in Momentum onhttps://momentumplanet.com/articles/the-san-francisco-slappity-slapdown-2010/index.html
They tested cargo bikes with 150lb loads(in additon to the rider) on the hills on San Francisco. The only motor that didn't burn up was the Golden Motor Mag Pie. Does any one else have experience with this hub motor? Any other recommendations?

Thanks,

Carl's Bad Carl
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Old 09-15-10, 09:48 PM
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15rms
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I have been waiting for others to answer this because there is a lot of people around here that know more than me. Even so here is some of my experience.

My son owns a long wheel base recumbent with a cyclone 500. In August of this year I rode his bike in mid afternoon around 90 degrees in Denver. We rode for 30 miles. He has a 30 amp battery. Denver as you know is hilly. Even with the hills and heat of summer the motor did not get hot. I suspect it is because it is a 24 volt system. That motor has been used with an external controller using 36 volts.

Not sure how much speed you need. I weigh 210 lbs. The bike will sit around 18 - 20 mile an hour on the flat with me on it not peddling.

I believe the difference in cyclone motors and heat problem is in the volts. So if you could be satisfied with a bike that runs around 20 MPH without peddling maybe a cyclone 500 would work for you. One advantage of a 24 volt system is you can get more amps with the same weight giving you a longer range.
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Old 09-15-10, 11:58 PM
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cvenstrom
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Thanks so much for your response. I am amazed how much better your son's bike does than ours(900W, 36V & 1200W 48V) system. We would be extremely happy to get the performance you described. I guess my theory that bigger is better was way off.
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