Good eye
Looks a lot like the Pubes bike!
it doesnāt have any way to sense wheel slip, right?
Not that Iām aware of.
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Aluminum motorcycle rims.
After looking through some of the build threads over on Endless Sphere, this thing isnāt all that shocking anymore.
The Cycle Analyst has an output that provides 1A at battery voltage and that would be pretty convenient to use to power lights. It seems like that should be enough current, but itās been too long since I messed with electrical stuff so Iām doubting whether or not this is right.
Headlight: IQ-X E, specs say 7.5W consumption nominal
Battery: 42.0V fully charged, programmed 32.0V cutoff
The headlight alone should only consume 0.18A at 42V, right?
If so, that should be plenty of headroom for a Topline rear light (no published power consumption specs, but it canāt be as much as the 150 lum headlight). Thereās probably a higher start up current when the lights are turn on, but could it be high enough that the fused 1A output isnāt enough?
remember you need an E-taillight too
normal dynamo taillights take raw AC, only switched by the headlight
https://www.bumm.de/en/products/e-bike-beleuchtung/parent/323/produkt/323-5kb.html
Thatās the exact rear light I bought, just used to calling all of their rear lights Toplines. Looks like theyāve all been renamed to Line.
Realized I had the stuff to figure this out this without putting the tiny fuse at risk. This is at 40V. At 32V is should still only pull 0.23A. Should be just fine even with the tail light.
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Well, when an anode and a cathode really love each otherā¦
how much have you sunk into this so far and how much cheaper do you think you could reasonably go? always real curious about diy ebike shit and have no idea what a āgoodā setup costs vs a shit or great setup
It belongs in the trash.
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Iāll pull some numbers together a little later today. This kit for sure ended up being a lot more expensive than the Bafang mid-drive kits I was looking at originally. I basically bought the most expensive item in every category.
Hereās the total with some detail on what I bought. The actual shipping charges arenāt included in the subtotal. Bike cost isnāt included either. I donāt have individual amounts since most everything was purchased as part of a kit with various options selected.
A quick check earlier shows a Bafang BBSHD kit with the largest 48V battery they have and the basic display is about a full bong less than mine.
Going the Bafang mid-drive route was my first idea, but I donāt like they way the Bafang kit attaches to the frame, and especially donāt like that it doesnāt have a way to brace the motor to keep it from rotating on the frame and potentially doing additional damage to the faces of the BB shell. Watch enough videos on the Bafang kits and youāll see motors move. Maybe itās not a big issue if itās installed correctly.
A kit with a Bafang front or rear hub motor might have been worth pursuing as well. At least from watching a video, theyāre pretty quiet for a geared hub motor. I wanted quiet.
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Second ride to the office today and Iām really liking this dumb heavy expensive thing. Experimenting with the pedal assist settings is the next thing to do. Lowering the max power/amperage should also help tame it a bit. Corners with mixed/loose surfaces are a bit pucker inducing right now, and legally, class 2 here isnāt supposed to exceed 750W. Not that I really care about the legal part.
Realized last night that even as expensive as the kit was, Iām still into the whole bike at least a full $bong less that my Endpoint.
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