Removable wheel hub motor

Supersleeper

100 mW
Joined
Mar 20, 2013
Messages
48
Hi folks,

Not sure how to classify this thread as it's more of a versatility question. I have a front wheel drive wheel hub motor and wanted to make it easier to detach for days I want to go powerless. The motor adds a slight resistance and I don't want to bike to far with it attached and no battery. I'm looking for a decent way to splice the wires so I can make a quick-connector harness. I have a a three phase 1000w 46v motor with Hall effect sensor. I'd i recall correctly is three large wires for power and two small for the hall sensor. Currently the wire travels the full distance from the forks all the way to my infineon speed control unit.

Cheers,

E
 
Actually I have the reverse problem: Two hub motors & rims, and two sets of tires. With my 4x4, it was easy to swap between summer and winter tires... and free too at my local tire shop. But for my set of modified hubbies - I have to swap summer and winter tires on my own which is a PITA.

Sorry, but all I have to offer is tough love man.

Just sort it! KF
 
01_22_iv250.jpg
From a quality of life perspective, you might instead consider swapping out the DD for a gear motor so there is no drag when the motor is off. You can just switch off and pedal whenever you want...
 
teklektik said:

From a quality of life perspective, you might instead consider swapping out the DD for a gear motor so there is no drag when the motor is off. You can just switch off and pedal whenever you want...

This is exactly what I was looking for! Good point on the geared motor. Reason I went with DD is for regen braking, but from what I've read, regen doesn't offer u much, especially with my li-ion battery setup.
 
MAC and BMC motors have perfectly transparent freewheeling, in my experience. Lift the wheel in the air, hit the throttle, and it spins easily for as long as any other wheel.

If you do a lot of pedaling w/o motor, go with a geared hub.. or just get a really large battery :)

You can take advantage of regen, but it's ideal in some situations but not others.
 
DD motor regen braking is great I loved it when I had my DD motor. Regen charging is only as good as your system. Inexpensive batteries will not take the higher amperage rate of charge, regen can produce, but with things being set up properly it can give a 6-14+ percent return, depending on your terrain and riding style, so is a good thing. But alas neptronics hits it on the head as gear motors are nearly transparent and your bike feels like a bike once again. I like both the DD and gear motors but build one was heavy and had inexpensive batts so regen was not a good thing. BMC gear motor gets me around great and allows me to pedal home un-powered if I misjudge my battery usage.
As for the replacing tires thing I never take my motor wheel all the way off of my bike just loosen one side and pull the other down far enough from the dropout to slip the tire through. I also patch my tubes with the wheel on the bike. My disconnect for the motor is secured all the way to a point just under my seat, at the controller, so it never gets messed with.
 
You can add some plugs, as seen in the picture above.

But, if you install and uninstall that motor enough times, you'd strip the threads on the axle for sure. They tend to be notoriously soft.

Why not do the easy solution? Get a second bike for pure pedaling. If the motor is on a really good bike, move the motor to a cheap one, and pedal the good bike.
 
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