darkone040
10 W
i ride my ebike to work everyday when its not raining, and a few of the people that i work with are really interested in my bike and are looking at me to build one for them..
one wants to go 35kms each way and the return home is going up some pretty big hills so ive been talking him to go the drive through the gears route like a cyclone kit
but 35kms is a lot of battery to be lugging around especially if you want to be going a decent speed, can charge at work so that makes it a bit easier..
the problem here would be the battery pack, im thinking 48volts and 20ah, and limit the bike to a 20amp draw so should make it home with some to spare,
am i right in the sizing of the battery pack, on 36v i can go 40kmh at 20amps on a flat road, so the extra volts should be good, this bike would have to be fool proof so lifepo4 would be best..
another wants one for a bit of fun, for some slow relaxed biking and wants a bike that is complete so she wouldnt have to lift a finger, she is looking at the prebuilt bikes that are on offer
but ive been trying to convince her that they are over priced for what you get and that i could build her a better one for cheaper, looking at a magicpie3 setup or even a geared hub motor..
i dont know much about geared hub motors, i havnt looked at them as an option before as they dont seem to be powerful enough for my applications so i dont know whats good or bad..
how strong the gears/clutches are, are they a wear and tear parts that you periodically have to replace or are they designed to outlast the rest of the motor..
i like the idea 'built to last' so would a mp3 handle the slow hills or would a geared hub be a better option, looking for opinions..
am i right in talking her out of the prebuilt bikes, they seem perfect for her application but are just too expensive for my liking..
these bikes like all useful ebikes would be overpowered according to the road laws of australia, would i have to get these people to sign a form to say that
they acknowledge that the bikes are over powered and that i cant be held responsible for anything that could happen to them, what do other people do?
all this started when i told them i wanted to build another one of my own so that i would have a spare that i could ride with a friend or if my main one was broken down..
ive had a few problems with my cyclone setup with the motor mount coming out of alignment and causing excessive wear and tear on the driveline..
my commute is 20kms each way with charging at work always done, slight uphill on the way home..
i would love to do an rc setup but the whole motor mount, reduction gearing would be impossible for me to make with the tools i have..
a magicpie3 setup would be nice also as it is on the cheaper side but that would seem like a step back in power for what i have already 36volt magicpie would be slow, if i want to build another one i dont see the point in not upgrading..
or a magicpie with external controller to up the volts for more speed, but then i wouldnt be able to share the battery pack between my 2 bikes, i dont think the cyclone would like 72volts through it, and neither would the driveline..
the next option would be a cromotor/lyen setup but that seems to be more money than i can justify for an a2b work horse..
then that brings me to another cyclone setup, but i would like to do something different..
36volts, or 12s lifepo4 is the magic number as i have a hyperion1420 charger so keeping it in its range would help with bulk/balance charging and when i up to 72volts i can just get another hyperion1420..
even though i want more power now, im still leaning towards a magicpie3 and then when i get bored with it ill change to an external controller and add another battery to up the voltage,
with a split battery id be able to take one out to use on the other bike if i want to go biking with a friend, what kind of power can the magicpie take for probably half hour continuous, i wish someone would just make up my mind for me..
so there you have it 3 completely different circumstances three completely different ebikes, are my suggestions correct for my work mates and will i be happy with a magicpie3 setup?
cheers adrian.
one wants to go 35kms each way and the return home is going up some pretty big hills so ive been talking him to go the drive through the gears route like a cyclone kit
but 35kms is a lot of battery to be lugging around especially if you want to be going a decent speed, can charge at work so that makes it a bit easier..
the problem here would be the battery pack, im thinking 48volts and 20ah, and limit the bike to a 20amp draw so should make it home with some to spare,
am i right in the sizing of the battery pack, on 36v i can go 40kmh at 20amps on a flat road, so the extra volts should be good, this bike would have to be fool proof so lifepo4 would be best..
another wants one for a bit of fun, for some slow relaxed biking and wants a bike that is complete so she wouldnt have to lift a finger, she is looking at the prebuilt bikes that are on offer
but ive been trying to convince her that they are over priced for what you get and that i could build her a better one for cheaper, looking at a magicpie3 setup or even a geared hub motor..
i dont know much about geared hub motors, i havnt looked at them as an option before as they dont seem to be powerful enough for my applications so i dont know whats good or bad..
how strong the gears/clutches are, are they a wear and tear parts that you periodically have to replace or are they designed to outlast the rest of the motor..
i like the idea 'built to last' so would a mp3 handle the slow hills or would a geared hub be a better option, looking for opinions..
am i right in talking her out of the prebuilt bikes, they seem perfect for her application but are just too expensive for my liking..
these bikes like all useful ebikes would be overpowered according to the road laws of australia, would i have to get these people to sign a form to say that
they acknowledge that the bikes are over powered and that i cant be held responsible for anything that could happen to them, what do other people do?
all this started when i told them i wanted to build another one of my own so that i would have a spare that i could ride with a friend or if my main one was broken down..
ive had a few problems with my cyclone setup with the motor mount coming out of alignment and causing excessive wear and tear on the driveline..
my commute is 20kms each way with charging at work always done, slight uphill on the way home..
i would love to do an rc setup but the whole motor mount, reduction gearing would be impossible for me to make with the tools i have..
a magicpie3 setup would be nice also as it is on the cheaper side but that would seem like a step back in power for what i have already 36volt magicpie would be slow, if i want to build another one i dont see the point in not upgrading..
or a magicpie with external controller to up the volts for more speed, but then i wouldnt be able to share the battery pack between my 2 bikes, i dont think the cyclone would like 72volts through it, and neither would the driveline..
the next option would be a cromotor/lyen setup but that seems to be more money than i can justify for an a2b work horse..
then that brings me to another cyclone setup, but i would like to do something different..
36volts, or 12s lifepo4 is the magic number as i have a hyperion1420 charger so keeping it in its range would help with bulk/balance charging and when i up to 72volts i can just get another hyperion1420..
even though i want more power now, im still leaning towards a magicpie3 and then when i get bored with it ill change to an external controller and add another battery to up the voltage,
with a split battery id be able to take one out to use on the other bike if i want to go biking with a friend, what kind of power can the magicpie take for probably half hour continuous, i wish someone would just make up my mind for me..
so there you have it 3 completely different circumstances three completely different ebikes, are my suggestions correct for my work mates and will i be happy with a magicpie3 setup?
cheers adrian.