PortalKeeper
10 µW
Hello I’m new here and want to build my first emotorcycle for myself by attempting to do this dude’s build:
That is part 3 of it and I don’t think he has finished it. I’ve also been talking with someone at qsmotor.com and asking about the windings on the teeth on this motor (stock version): 17inch 12KW Hub Motor for super Motorcycle, Bike and Scooter...
The dude from qsmotor said the stock version is 5T but it can be manufactured as 6T, which he said might be a better fit for my use-case of the motorcycle (I live in Colorado and want to use it on the mountains so I may need a bit more starting torque. I was reading some threads on here and found some great information about this topic from @minde28383.
I also think but don’t know for sure that this version of the motor expects a voltage of 96V instead of 72V. So my question is how many of the cells that he uses in the video would I need to put in series and how many in parallel to get a top speed of at least 110mph?
I know that this is beyond what qsmotor recommends (they say not to exceed 100mph) but I would only go this fast for short bursts of time (just for excitement) so if there is a way to get the motor to that speed safely (without frying it), I would like to.
Maybe this can be done by using some sort of ff cooling system (I don’t think the guy in the video will use any electrical cooling system for the motor or battery)
Also, the battery and motor combination should support a range of at least 100 miles, and 0-60mph in under 4 seconds (3.5s would be nicer though)
The motorcycle won’t be used off-road, and I will probably be going around 65mph (our highway speed here) mainly and sometimes I like to go about 85-90mph when the road is clear for some long stretches of open road. And yes I want to also get it street legalized.
For reference: in the video he is using a 74V nominal battery with 77Ah capacity, and he uses two 10S16P modules, in series with each other to accomplish this. Here are the cells he is using and that I also bought: Lithium 2170 21700 Battery Cell 5000mAh 14.4A INR2170 M50 LT - By The Case, EV West - Electric Vehicle Parts, Components, EVSE Charging Stations, Electric Car Conversion Kits
I’m not sure what controller he will be using but he should definitely be using the motor I listed above (I am pretty sure he is using the stock version since this version expects a voltage of around 72V hence the 74V battery pack that he made).
Another topic that I’m not too experienced with is picking the tires to go around the rim of this motor. I believe he is using these ones (which he used on a previous build) but am not too sure: 180/55-17 Metzler Karoo Street
Any advice about picking the tires would also be really appreciated.
Thanks again for any help on this topic.
That is part 3 of it and I don’t think he has finished it. I’ve also been talking with someone at qsmotor.com and asking about the windings on the teeth on this motor (stock version): 17inch 12KW Hub Motor for super Motorcycle, Bike and Scooter...
The dude from qsmotor said the stock version is 5T but it can be manufactured as 6T, which he said might be a better fit for my use-case of the motorcycle (I live in Colorado and want to use it on the mountains so I may need a bit more starting torque. I was reading some threads on here and found some great information about this topic from @minde28383.
I also think but don’t know for sure that this version of the motor expects a voltage of 96V instead of 72V. So my question is how many of the cells that he uses in the video would I need to put in series and how many in parallel to get a top speed of at least 110mph?
I know that this is beyond what qsmotor recommends (they say not to exceed 100mph) but I would only go this fast for short bursts of time (just for excitement) so if there is a way to get the motor to that speed safely (without frying it), I would like to.
Maybe this can be done by using some sort of ff cooling system (I don’t think the guy in the video will use any electrical cooling system for the motor or battery)
Also, the battery and motor combination should support a range of at least 100 miles, and 0-60mph in under 4 seconds (3.5s would be nicer though)
The motorcycle won’t be used off-road, and I will probably be going around 65mph (our highway speed here) mainly and sometimes I like to go about 85-90mph when the road is clear for some long stretches of open road. And yes I want to also get it street legalized.
For reference: in the video he is using a 74V nominal battery with 77Ah capacity, and he uses two 10S16P modules, in series with each other to accomplish this. Here are the cells he is using and that I also bought: Lithium 2170 21700 Battery Cell 5000mAh 14.4A INR2170 M50 LT - By The Case, EV West - Electric Vehicle Parts, Components, EVSE Charging Stations, Electric Car Conversion Kits
I’m not sure what controller he will be using but he should definitely be using the motor I listed above (I am pretty sure he is using the stock version since this version expects a voltage of around 72V hence the 74V battery pack that he made).
Another topic that I’m not too experienced with is picking the tires to go around the rim of this motor. I believe he is using these ones (which he used on a previous build) but am not too sure: 180/55-17 Metzler Karoo Street
Any advice about picking the tires would also be really appreciated.
Thanks again for any help on this topic.
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