Endless Sphere

What's wrong with your Kuwahara? It will work fine.

Any cell that you have to use massively parallel to get what you need, is silly kid stuff. You don't have Tesla's process control or their manufacturing robots. 1P is the best P.

By hobby cells Chalo is referring to smaller RC (hobby cells) lithium polymer pouch cells NOT 1865s or 2170s. 18650s are absolutely hobby cells. You can get hobby welders and hobby cell holders for them, fer cripes' sake. Building batteries with them constitutes a hobby in itself. By EV cells, I me...

As for why I was looking at them so hard? Because they're $5 each, Chalo uses them in his bike powering a leafbike motor, The ones I'm using are not 5Ah, but 25Ah (original rating). They're also rated for 300A discharge, which I'm not asking them to do. EV cells are a different game than hobby cell...

Do y'all drive a car or a real motorcycle? If so, does it have a power interlock with the brakes? If not, how do you possibly manage it? Yes, it's called a clutch. If you don't engage it (for a manual/stick shift) when braking to a stop the engine will stall - which is analogous to stripping the bl...

You really want to throw the thing away when the very first component fails? Not even have a decent shot at recycling it, let alone repairing it? In my experience, building reparability into it actually introduces weaknesses, which almost always turn into future repair jobs. I did a full suite of b...

Have you had any problems with overheating up until now, or are you just inviting debris into your motor for funsies?

You really want to throw the thing away when the very first component fails? Not even have a decent shot at recycling it, let alone repairing it?

mrpr39 wrote: ↑

May 17 2022 2:13pm

That's close to the initial idea i had with the mentioned motor (Aliexpress).

The problem with the motor you linked is that its gear reduced RPM is about 700, and it will be difficult to get the wheel speed you're looking for with a single stage of external reduction.

Its B67 and nothing looks out of place. Ad says $225 or $250 new, asking half. I am 280lbs Screenshot_20220517-021351.png That's a good choice of model for someone your size. I would buy new if I were in the market for a leather saddle. That said, my ex-wife's favorite saddle is the Brooks Flyer S ...

I didnt know hub motors were bad at uneven / bumpy roads, crap. Does it break easy? We kinda live close to a forest and not say 10minutes car drive from nearest "village" so pretty much gravel road with some bumps and our forest my son drives in when tracks are closed. Gear reduced hub mo...

Looks good but waiting for the live test. It can still take a seven-speed free will if you widen ithe frame ? I remember it was heavy You can add some spacing, but it will adversely affect dish and spoke tension. It weighs 19.2 pounds on my untrustworthy little digital luggage scale, with all the a...

Oh, and for the OP: Have you seen this? https://www.amazon.com/QSMOTOR-bicycle-Brushelss-including-freewheel/dp/B07DC27M94 I got one. Haven't fired it up yet, but it seems pretty boss from what I can tell. Only supports 1- to 4-speed freewheels on its original spacing, so suitable either for a fatbi...

999zip999 wrote: ↑

May 15 2022 3:01pm

I'm looking at a 5303 but has a 48v controller with 4110 fets so sounds like a 72 v controller ?

5303 is a fast wind; it works much better with a lower voltage but lots of phase amps.

Looks to me like there's a gap between the frame and the wheel that could be used to fit a 48t (or whatever appropriate size) sprocket. Instead of a spacer, there could be a keyed carrier for a chainring. Yes, but then you would have to move the chainrings and chain to the outside of the frame. May...

There are plenty of options for Hailong, Polly, and probably other frame mounted hard case batteries that have a speed controller in the base rail. Topbikekit has a bunch of them. Don't fool yourself that they're waterproof. For weather resistance, the best thing is to let moisture escape as quickly...

The model is 1500W, freewheel rear version is probably best for what you're doing (because you can mount a sprocket on either the disc brake side or the freewheel side). But if you look at the picture, the freewheel is mounted on the axle inside the frame about 3 or 4 inches from the wheel. The whe...

About the suggested motor from Leaf, do you have a link to a specific model. I searched there website and there is quite a large amount of different models. The model is 1500W, freewheel rear version is probably best for what you're doing (because you can mount a sprocket on either the disc brake s...

Thx. I did try to amount the BBS02 on my Cannondale hybrid road bike, but the BB "socket" was slightly too small to accept the 33.5mm spindle of the motor. I think these Cannondale specs may explain it. https://wheelsmfg.com/bb30a-tech-info Hope I have better luck with the Kuwahara. You l...

If you only have two motors, well... you're going to need at least two wheels. I don't see the need to conjoin these twins.

Its easier and cheaper to limit power then it is to make more, higher power. I was going to say Leaf 1500w hub motor if you want two motors, or a single qs 3000w hub motor If all he wants is sub-5 mph, power isn't really the issue. It's gearing. Leaf motor is a great choice because he can get 11t w...

If you're keeping the stinking gas engine, what's the point of converting it? You just want a heavier car that wasn't engineered to be that heavy?

Good luck with your auction.

In the future I strongly suggest not wasting your effort converting bikes that were garbage on day one and will only ever be garbage.

You have to take out the bottom bracket first. Then the BBSHD will mount on the threaded shell.

No, there is no list. Given the number of bikes available, that's like asking "is there a list of people who look good in these pants?" If your bike has a threaded bottom bracket shell and a straight down tube that slopes upward towards the fork, then it's overwhelmingly likely a BBS02 or ...