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General Discussion / Re: Wuxi Stanford DP Racing
« on: October 17, 2019, 05:52:57 PM »
1824 kms so far. No issues. Added wireless bicycle speedo to have mph.
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General Discussion / Re: Wuxi Stanford DP Racing
« on: August 24, 2019, 01:51:05 AM »
Never thought of the water getting in. Looks like I can fill the cut with something (flexible caulking-black.)As for inspection, mine was probably the first electric motorcycle my shop had ever seen. Passed with flying colors.
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General Discussion / Re: Wuxi Stanford DP Racing
« on: August 22, 2019, 11:04:16 PM »
Pushed the envelope to 80kms or 49.7miles. The voltage readings 1) under load 2) throttle off were converging at around 76 volts. When I hit a steep section, the under load dropped to 72 and the lights went out. Walked it around to face downhill. Heading downhill with no load, the voltage went back to 76, and I was able to make it the 2 miles home. When I plugged it into the charger the reading was at 76. The factory stats claim 50 miles is the maximum range. Looks like they were right on the money. Lucked out and now know the range (with a minimum of pushing)
Photo shows the jagged slash across the bottom of the battery box. Changing the lead acid battery for the lithium at the factory was done by cutting open the battery box with a saw. Crude but got the job done.
Photo shows the jagged slash across the bottom of the battery box. Changing the lead acid battery for the lithium at the factory was done by cutting open the battery box with a saw. Crude but got the job done.
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General Discussion / Re: Wuxi Stanford DP Racing
« on: August 21, 2019, 09:15:18 PM »
Growing up in Middlebury, Vermont, I remember my father’s reaction to the cheap, poorly made toys from Japan in the local Ben Franklin. He had fought “the japs†in WWII, and wanted nothing to do with them, and forbid me to own any such toys. Well, here we are today. Toyota, Nissan, Subaru, Sony, etc. I suspect the same will happen with China, if it already hasn’t. I realize I am taking a gamble with the inexpensive Chinese motorcycle, but life is a gamble, and having owned a 1977, R75/7 for 90k, I know there will always be issues that will have to be dealt with. I consider this bike to be a toy that I am having fun with for the moment. That outlook may change if the lithium battery torches up between my legs as I’m going down the road. FYI - guess what country the most highly recommended by Amazon killawatt clone is made in.
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General Discussion / Re: Wuxi Stanford DP Racing
« on: August 21, 2019, 03:45:00 AM »
Not sure on the charge time. I plug it into the wall after riding and it charges over night. Factory says 8 or less. As for the lighter, based on my communications with the factory in China, which were an exercise in code interpretation, I’m guessing maybe it could be “literâ€. That having been said, their English is a hell of a lot better than my Chinese. Who knows. I have not been following the other threads, so can’t comment on the jokes.
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General Discussion / Re: Wuxi Stanford DP Racing
« on: August 20, 2019, 09:43:54 PM »
Dash with DIY analog kph/mph converter. 790km so far with no issues.
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General Discussion / Re: Wuxi Stanford DP Racing
« on: August 20, 2019, 05:33:07 PM »
Here’s the picture, I hope!
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General Discussion / Re: Wuxi Stanford DP Racing
« on: August 20, 2019, 06:30:50 AM »
Thanks for the voltage info. When fully charged it reads 84-85 volts, but when I Unplug it, it drops to 81. Someone from the factory said to not let it drop below 74. So,If I never let the low/throttle off voltage drop below 74, I should be good. After 48 miles it was at 76.
Buying a bike directly from the factory in China seemed sketchy, but, for $1680 plus another $980 for all fees and freight, I thought it was worth the gamble. So far, so good.
Buying a bike directly from the factory in China seemed sketchy, but, for $1680 plus another $980 for all fees and freight, I thought it was worth the gamble. So far, so good.
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General Discussion / Re: Wuxi Stanford DP Racing
« on: August 19, 2019, 08:42:30 PM »
Thanks for the response. I am in Vermont, which “ain’t flatâ€, so I was pleased to go 48 miles. Alibaba is China’s Amazon. As for the voltage reading, when the throttle is closed, the reading is a steady #, which decreases as kms are covered. I guess I will have to rely on that reading as it approaches 72 volts, which is time to head for the shed. Don’t want to find out range the hard way, pushing 250# down the road.
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General Discussion / Wuxi Stanford DP Racing
« on: August 19, 2019, 06:35:49 PM »
Purchased Wuxi Stanford DP Racing direct from factory on Alibaba. 5000W (8000W peak) Have done 48 miles on a charge (72 volt lithium ion). Top speed 65mph. Great bike, and only $2380 delivered to my driveway including all customs and freight. My only issue is with the instrument cluster. It shows speed in km, a fluctuating voltage that seems to respond to throttle input, Kms traveled, and total kms. The #s 1-4 and a swoosh colored from green to red do not light up. Therefore, I do not have an obvious way to determine the range remaining on the battery. Does anyone have a similar issue, and how do you deal with it ?
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