E-bike kit geared kit.
- Thread starter slacker
- Start date
dogman dan
1 PW
500 miles now on the one I have in the process of destruction testing. Can't break it so far, without exceeding the 300 pound total weight limit we suggest when you buy it.
Mostly I'm trying to break the clutch or gears, 90% of those miles are dirt riding. But no jumping other than the occasional tiny hop. Stuff like flying off a curb at 25 mph. A very small percentage of one batch of motors did break the shear pin (edit, steel key) on the axle, but no clutch or gears broken under warranty I have heard of so far.
You know of course, I work for EBK.
I did smoke one, but that was with 450 pounds total weight, and a huge mountain. I was climbing 7% grade with panniers loaded with sandbags, at about 6 mph when she blew. Just keep your speed up above 10 mph, and you won't fry one very quick.
I am on the chat most weekdays, so come there to talk more about it. If you need more durability, that's why we now offer the heavy duty kit, still the good ol DD motor, in 6x9.
Sorry if this is spammy, but he asked. I feel like I can't write a review for EBK stuff now, since I actually work there every day now. But if the kit sucked, I'd still say so. One reason EBK went fully forward with this similar to a Mac motor, is it did pass my initial testing last fall, till I overloaded it. Nothing to complain about so far.
Mostly I'm trying to break the clutch or gears, 90% of those miles are dirt riding. But no jumping other than the occasional tiny hop. Stuff like flying off a curb at 25 mph. A very small percentage of one batch of motors did break the shear pin (edit, steel key) on the axle, but no clutch or gears broken under warranty I have heard of so far.
You know of course, I work for EBK.
I did smoke one, but that was with 450 pounds total weight, and a huge mountain. I was climbing 7% grade with panniers loaded with sandbags, at about 6 mph when she blew. Just keep your speed up above 10 mph, and you won't fry one very quick.
I am on the chat most weekdays, so come there to talk more about it. If you need more durability, that's why we now offer the heavy duty kit, still the good ol DD motor, in 6x9.
Sorry if this is spammy, but he asked. I feel like I can't write a review for EBK stuff now, since I actually work there every day now. But if the kit sucked, I'd still say so. One reason EBK went fully forward with this similar to a Mac motor, is it did pass my initial testing last fall, till I overloaded it. Nothing to complain about so far.
docnjoj
1 GW
Having a shear pin on a geared motor seems like a very good idea. I have had the steel key in one of my motors fail and it took a chunk out of the axle. So far so good with JB weld for the fix but it was a nuisance. Replacing a shear pin would have been much easier.
otherDoc
otherDoc
dogman dan
1 PW
The steel key is what I meant. I was groping for the correct word for it. Not a roll pin. That batch of motors had a funky key. Only the key itself was a problem, and only on a few motors out of hundreds.
Shoestring
10 mW
Hello slacker, i purchased a new geared ebike kit this winter. after a bms issue which was taken care of under warranty, the kit has been performing flawlessly. I have approx 300 miles so far. my system is stock 48V/48-20 battery. top speed 28mph, I have not been able to exhaust the battery in a single ride yet. 35 miles on the local trail, med power 16mph cruise, still had 51.2 volts measured, I then took it out on the road at max power and rode another 10 miles. Still had 48v in the tank. I would guess 50+miles at the 16mph cruise speed. Can't fly up and down the local trail, too much traffic, 28 is fast enough for me. I can't imagine going 40 mph on my bike configured like it is. Getting older, losing my nerve I guess! Shoestring
motomech
10 MW
As you can see from shoestring's results, they ARE selling the high speed wind (9rpm/V), very close in motor speed to the Q100 (Cute) 328.slacker said:thanks dogman, why did ebk get rid of the faster dd motor and stock the slower wind. I understand about the weight limit and hauling but some of us would prefer the faster wind. Just sayin. Thanks again.
This was pointed out by russell several months ago.
Although shoestring seems very happy with his kit, this is too high a motor wind for use in a 26" wheel for most users.
Light-weight, fit riders, without steep hills can get away with this combo., but other, not so much.
As far as finding accounts of this motor, it's a MXUS geared mini, a well reported on motor.
dogman dan
1 PW
It's not a mini motor, it's similar to a Mac, 10T. The larger of the geared motors.
You don't have to be lightweight to use it. Up to about a 225 pound rider is fine with this motor, keeping total weight down below 300 pounds for the whole bike and rider. You don't have to weigh less than 150 pounds to enjoy this motor.
Sure, it does perform a lot more sluggish by 300-350 pounds total weight. But not anywhere near as sluggish as the 9x7 DD would with the same rider weight. (using the stock controller)
So our findings were that under the 300 pound weight limit we suggest, the geared motor outperforms the shit out of the 9x7 DD. What really impressed me, was how good it did when I had it at about 350 pounds, and I stopped the bike on an 8% grade. Really no problem even at that weight to get going again. The 9x7, just went bleahhhh. And if you need speed, the speed is still pretty much there. I find my speed is typically more like 25 mph, but right out the driveway I have 28 mph. It's not too fast, not an 8 turn motor.
This was at 1000w, of course we know the 9x7 can be given 2000w and do that uphill start fine. But EBK kits are NOT 2000w.
For those that will be over 300 pounds weight, the trusty 28 mm dd motor is still there in the slower 9 turn winding. Testing that setup, I was able to get on a 100 pound bike, and tow 40 pounds of water up a three mile long grade, 5-8%, and never even get the motor very hot. Warm to be sure, but nowhere near overheat. That was 350 pounds total.
For that kind of weight up a mountain, you just need the better ability of a dd motor to cool itself. The geared motor will haul the same weight up that hill, but it will get hotter inside, because of the slower transfer of winding heat out of the motor core. For shorter hills, then the geared motor still does fine, even at 350 pounds.
But because of the long warranty EBK offers, we do have to limit the weight we will allow for the 500w geared motor. So we don't give a new motor every 3 months to a guy who is flogging them to death on a cargo bike.
You don't have to be lightweight to use it. Up to about a 225 pound rider is fine with this motor, keeping total weight down below 300 pounds for the whole bike and rider. You don't have to weigh less than 150 pounds to enjoy this motor.
Sure, it does perform a lot more sluggish by 300-350 pounds total weight. But not anywhere near as sluggish as the 9x7 DD would with the same rider weight. (using the stock controller)
So our findings were that under the 300 pound weight limit we suggest, the geared motor outperforms the shit out of the 9x7 DD. What really impressed me, was how good it did when I had it at about 350 pounds, and I stopped the bike on an 8% grade. Really no problem even at that weight to get going again. The 9x7, just went bleahhhh. And if you need speed, the speed is still pretty much there. I find my speed is typically more like 25 mph, but right out the driveway I have 28 mph. It's not too fast, not an 8 turn motor.
This was at 1000w, of course we know the 9x7 can be given 2000w and do that uphill start fine. But EBK kits are NOT 2000w.
For those that will be over 300 pounds weight, the trusty 28 mm dd motor is still there in the slower 9 turn winding. Testing that setup, I was able to get on a 100 pound bike, and tow 40 pounds of water up a three mile long grade, 5-8%, and never even get the motor very hot. Warm to be sure, but nowhere near overheat. That was 350 pounds total.
For that kind of weight up a mountain, you just need the better ability of a dd motor to cool itself. The geared motor will haul the same weight up that hill, but it will get hotter inside, because of the slower transfer of winding heat out of the motor core. For shorter hills, then the geared motor still does fine, even at 350 pounds.
But because of the long warranty EBK offers, we do have to limit the weight we will allow for the 500w geared motor. So we don't give a new motor every 3 months to a guy who is flogging them to death on a cargo bike.
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