yescomusa kit any good? Experiences please

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yescomusa kit any good? Experiences please

Postby Henry111 » Thu May 24, 2012 12:55 pm

I am considering the purchase of yescomusa kit.
I would appreciate the opinions, especially if you have personal experience with these kits.
If the consensus here is good, I will buy.
If the consensus is bad, I will not buy.
Pros and cons on these kits will be sincerely appreciate.
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Re: yescomusa kit any good? Experiences please

Postby amberwolf » Fri May 25, 2012 5:08 am

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Re: yescomusa kit any good? Experiences please

Postby eTrike » Wed Jun 06, 2012 1:59 am

I have been using a yescomusa 1000W 26" rear kit for about 9 months, totaling roughly 1500-2000 km. Stock controller has the ability to do regen and cruise control if you solder those parts to ground on the board. I enabled regen and it works wonderfully as a nice smooth brake. Never enabled CC. I was in a sideways collision and have had a slightly tweaked rim, and one spoke nipple was stripped out. I really like the tire as it has lasted longer than my Schwalbe marathon plus 20" front tires, although they all need replacing at the moment, so I guess you might expect a similar lifespan from the tire.
As a comparison, I live near another user on this forum and have been able to drag race him to see what the difference is between the motors he has tried. He used a goldenmotor, a Crystalyte(the mid range one), and most recently a 9 Continent, ran at higher output (1500W peak on mine, ~2100 on his). I beat him until about 25-30 mph. Tonight he had upgraded to 72V 40A, so nearly twice the power, and we stayed even for the first ~2 seconds, with him pulling steadily away thereafter. His motor is much quieter though, the yescomusa has a heavy grunt sound of power with an odd "whump" felt
under power.
In short, my Yescomusa kit rocks! I do need to upgrade my wires though, as the phase wires have gotten hot enough to melt the styrofoam in my seat, since I run at full throttle (30-31A) all the time. It also handles 7-8% grades fairly well at speed, but struggles from a dead stop. And, the motor and controller survived through the neverending rain we get here for 5 months without any hiccups.
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Re: yescomusa kit any good? Experiences please

Postby wesnewell » Wed Jun 06, 2012 4:17 am

I've bought 3 of them. Happy with all of them. Main complaint is none of them came with rim tape and I don't like the small tires they come with. The $40 more for the 48V 1000W kit is well worth it imo. It will deliver about 8mph more speed than the 48V 500W kit on the same voltage.
Mongoose 26" FS MTB bike $99, yescomusa.com 48V 1000W rear hub kit $276, Hua Tong 72V 40A controller $35, 10ah 24s lipo $275=40+mph, range=45 miles @20mph
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Re: yescomusa kit any good? Experiences please

Postby dogman » Wed Jun 06, 2012 6:49 am

Good as any kit on ebay. Very good that it ships from the usa if you live in the usa.

Other options may be more sophisticated, with perhaps better wiring and cycleanalyst compatible plugs, and come with much better customer service. But as a good place to buy in country as cheap as possible, it's a winner.
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Re: yescomusa kit any good? Experiences please

Postby chisixer6 » Wed Jun 06, 2012 5:46 pm

I got the 48v 800watt version, because I already wait over a month for the 1000watt version, and got impatient. running on 66v. It's very nice, thinking about getting another for my tour easy clone. the battery gauge didn't work initially, so I left it unplug, I am using a Lyen controller, instead of the stock controller, that I had sitting on the shelf, better performer. I couldn't use the brake levers with the cutoffs, because I have hydralic disc. The only problem I can forsee is, that long phase and hall wire, which goes to headtube on mine, for any reason to remove back wheel, I will need to cut all the ziptides each time. And to change gear cluster or anything to remove axle nut, I need to take apart the hall's connector and the Powerpoles on the phase wires, so they can slip thru the nut or gear cluster. Everything else is fine. the direct drive bike is also very heavy when compared to a gear hub bike.
Motobecane ..bafang front driver.. 42v
24" girls bike ..ebikekit 20" fwd..75v
24" Schweinn 9c 20"rwd 75v
26" Schweinn Yescomusa 48v 800watt dd
Easy Racer clone LWB.....24" rear e-bikekit 48v ..ready for testing
Hooligan clone , longer rear chain stay.. twin 20"...
fun bike...twin 16" wheels. small rear motor... ready for testing
convert my CLWB recumbent to a front bafung@48v..ongoing
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Re: yescomusa kit any good? Experiences please

Postby Blackssr » Fri Jun 08, 2012 6:49 am

Did the colors line up for the phase and hall sensors when using the Lyen controller? If not, please post correct color combo. I have the 48 volt/1000 kit and would like to change the controller to a Lyen also. Thanks in advance. Also what is top speed at 66 volts? I Max out at 28mph with 48 volts.
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Re: yescomusa kit any good? Experiences please

Postby chisixer6 » Fri Jun 08, 2012 5:25 pm

the hall's wire (5 thin wires) were the same setup as the stock Yescomusa kit. On the 3 phase wires I had yellow to yellow and blue to green and green to blue as I have with other Lyen setup. It didn't work, just grunted a little . then I had yellow to yellow, blue to blue and green to green and this works, at least on mine. mine is 48v/800 watts rear drive.

I don't know the speed, as I don't have a speedomter or CA yet.

Also.. in my case the connectors for the thottle connectors(yesusacom) were reversed. when I went to plug in the thottle to Lyens controller , I was trying to plug 2 male plugs together. I had to switch a connector and also the 3 little spades.Jerry
Motobecane ..bafang front driver.. 42v
24" girls bike ..ebikekit 20" fwd..75v
24" Schweinn 9c 20"rwd 75v
26" Schweinn Yescomusa 48v 800watt dd
Easy Racer clone LWB.....24" rear e-bikekit 48v ..ready for testing
Hooligan clone , longer rear chain stay.. twin 20"...
fun bike...twin 16" wheels. small rear motor... ready for testing
convert my CLWB recumbent to a front bafung@48v..ongoing
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Re: yescomusa kit any good? Experiences please

Postby wesnewell » Sat Jun 09, 2012 12:56 am

I think I get about 35mph on 66.6v (18s lipo). I got over 30,mph on 14s iirc. 28mph seems a little slow for 48v unless you're running 12s lipo.
Mongoose 26" FS MTB bike $99, yescomusa.com 48V 1000W rear hub kit $276, Hua Tong 72V 40A controller $35, 10ah 24s lipo $275=40+mph, range=45 miles @20mph
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Re: yescomusa kit any good? Experiences please

Postby eTrike » Sun Aug 26, 2012 2:08 pm

I'd like to add that I did replace my phase wires, as a long trip I had taken had a 14 mile leg at the end that was mostly uphill and caused the phase wires to short inside the hub. I ordered hall sensors before I cracked the hub, so replaced those too but found the phase problem once I did open the case. I was able to replace with 14ga solid core wire, which just barely fit inside the axle, but its been working great. I'm still curious why it has always had a "whump-whump-whump" sound inside the motor when applying power, but I figure it has something to do with resonance. So, upgrade your phase wires! :)
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Re: yescomusa kit any good? Experiences please

Postby e-beach » Sun Aug 26, 2012 3:01 pm

I have a 36v 800w Yescomusa front wheel hub and it gets me around the Los Angeles and beach communists just fine.
I top out at about 20 mph with no peddling and on 15ah can go about 22 miles on a charge as fast as I want if I keep on the flats. I ride it 20 - 30 miles a day at the moment. If I had it all over to do I would have gone with a 48v 1000w rear wheel motor.

My complaints: The motor wires are thin and heat up on the hills, I will replace them at some point. The grip are hard. My rack was flimsy. There was no tire liner. The zipper ripped off of the bag the first week. And the hooks on the bungy strap are poorly designed. My strap came loose and rapped around my back wheel. (Luckly I was pushing it at the time.) One of the spoke nipples recently vibrated loose and I had to pull the wheel to put it back together and then I had to true the wheel. :evil:

Would I recommend it for the price? Yes, it has been working for me so far.
Current build: Liahona w/ cheap front suspension and suspension seat post. Yescomusa 36v 800w generic front hub motor. 15ah Headway triangle mounted pack. Tronsung 30 amp, 15-mosfet, 63v-caps mystery controller.

Previous Build:1992 Trek Antelope 800 - Bone Crusher (no suspension) - Yescomusa 800 watt 36 volt front wheel kit. Don't do it! Get suspension!!!
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