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  1. P

    Clicking, hesitating, and not functioning motor

    I actually think it's the batt pack. Ok. Initially the battery read 53.8v at full charge. I then applied throttle and the motor jerked. And the volts read 44.4. It's a 48v 10ah I bought off a Chinese guy (not Ping) in 2008. I've been using it pretty steady since 2009. Is this about the right...
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    Clicking, hesitating, and not functioning motor

    Darn it. I am leaving early tomorrow morning for a week out of state. So I am going to have to get back to this upon my return, when I have some time to spend on it. I appreciate all the excellent help though...
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    Clicking, hesitating, and not functioning motor

    It's a LiFePo4 48V 10ah. I bought it off ebay (Not Ping) and started using it in late 2008. It's possible that it is the battery, I suppose. Can I check the battery with a voltmeter?
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    Clicking, hesitating, and not functioning motor

    I have a front wheel road runner motor on a MTB. I use a 48V 10ah LiFePo4 with a BMS. The system has been working well these past few years. Just yesterday I rode to work in the morning, and it worked great. But after work on the ride home, the ebike was not functioning properly. When I apply...
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    Lost Power

    That is excellent that you found a simple a low cost reason for your problem. I'm taking mine in to the ebike repair dude tomorrow evening for a complete electrical system overhaul. Looking forward to it. phr
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    Lost Power

    @ biohazardman: I will try to make the July 9th EV day thing downtown this year. Though it's a Saturday so we very well may be out of town. What kind of ebike settup do you have?
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    Lost Power

    I'm in NE PDX close to Grant high school. I ride all the way through downtown up Washington park and all the way to St vin cents hospital area. I never see any ebikes, and I have been riding for years. So the bike guy here in Portland at the Ebikestore looked at everything and surmised that...
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    Lost Power

    Well, Living in Portland Oregon there is a fair amount of rain exposure. I try not to ride it during particularly bad rainy days, but there has certainly been rain exposure here and there. And no, there was not anything unusual such as crashes or repairwork before it happened. Basically I was...
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    Lost Power

    Hello, I have a Crystalyte RoadRunner Hub Motor (4825R) on 26" front Wheel. I use a 48V 10ah LiFePo4 pack. This has been working great for 2.5 years. While riding home from work last evening suddenly something bad happened. Power to the motor was decreased about 95%. The wheel will hardly...
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    Road Runner vibrates

    I think I finally know why the motor vibrates. I have the road runner motor on the front wheel of a full suspension mountainbike. This means there are front forks. My sense is that the rpm's of the motor causes some sort of vibration at high torque within the front shock.
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    Mounting of Crystallyte Torque Arm

    Hi, I saw your post about your Crystallite Torque Arm. I am curious where you bought it? I am pretty I need one for my front wheel road runner hub motor. Thanks, Patrick praskal at gmail dot com
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    Road Runner vibrates

    Well, when fully charged the LiFePo4 pack rests at 57 volts. When riding, the voltage dips to the low 50's. Until a few miles into it, then the voltage sags to 47, 48 with a big load. Basically, the whole ebike settup runs just fine with good power and appropriate distance for what pack I have...
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    Road Runner vibrates

    I said that I had ridden 5 miles already with it. I'll test it later when it's fully charged.
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    Road Runner vibrates

    Ok, I went ahead and was able to connect the voltmeter contacts to the system. This was after I rode home 5 miles, so the batt pack was certainly not fresh. Right away I got a reading of 50volts at rest (48V 10ah LiFePo4 pack). I then rode up an incline, no pedaling. Upon full throttle I did get...
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    Road Runner vibrates

    It starts immediately.
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    Road Runner vibrates

    Dave suggests I use a voltmeter to see how much the voltage is sagging under load. The LiFePo4 may not be enough when I throttle. I'll check it out...
  17. P

    Road Runner vibrates

    I'm going to call him tomorrow. The guy helping me is named Mike. He said he's never heard of the problem. Hmmm... weird.
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    Road Runner vibrates

    The guy from ElectricRider.com suggested I send the controller in to them: "If you don't see any damaged wires, it's most likely the controller which is much less expensive to ship. Please ship the controller back for diagnosis/repair." But I can't be sending anything anywhere, since I use the...
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    Road Runner vibrates

    Ok, just checked all connections and everything looks fine. I loosened up the leads a bit and reconnected everything. I just rode down the block and yes, still vibrating when I apply the throttle. It still accelerates just fine, but it just vibrates alot when I lay on the juice.
  20. P

    Road Runner vibrates

    The wheel is perfectly true. I have a LiFePo4 48V 10ah pack, which has been great (since I used to have SLA). The top speed is 23mph. I don't know the range but I think it is around 12 to 15 miles. I don't know the watts per mile or any other such info because the 48V 25amp controller has no...
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    Road Runner vibrates

    I have this controller: http://www.electricrider.com/crystalyte/x-ct4825.htm
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    Road Runner vibrates

    I have been using it since december '08. The motor has always vibrated since the first time I used it. That's why I figured it was normal. Anyway, I checked all the leads to the motor, controller, batteries and everything looks good. I have no idea how I would troubleshoot this. I really don't...
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    Road Runner vibrates

    I have a front wheel road runner motor on a full suspension MTB. I have a 25amp controller. I have a 48V 10ah LiFePo4 pack. I have one question: the hub motor vibrates quite forcefully when I throttle and upon sustained speeds. This vibration never happened with my old X-Lyte hub motor (the old...
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    LifePo4 charger question

    By the way, I finally talked the LiFePo4 ebay seller to send me a new 48V charger. Yay. I hope this one works.
  25. P

    Need more capacity

    I have a 48V 10ah LiFePo4 pack as well, and a front wheel road runner motor. I tried it for my long commute the first time today. The commute is about 16.3 miles one way. The problem is that there is a huge elevation change; I have to go up a bad hill for several miles. The damn thing cuttoff...
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