AussieRider said:G'day Ishigawa, interesting project.
Remember to use some kind of lock nut on the hubmotor sprocket or it will unscrew with motor torque.
On my mid drive chopper, I used a thinned down fixie sprocket for the chain to the rear wheel, then the freewheel sprocket for the pedal chain as a locknut. Works fine.
If I knew how, I'd attach a link to my chopper build thread so you could see the setup.
Looking forward to seeing the finished machine mate!
AussieRider
E-HP said:This thread it like opening a present that's in multiple boxes. Can't wait to see it unfold. It's hard to see how sturdy/durable that lower welded piece is that connects the two frames. Are you reinforcing that any more, like maybe another piece from the cutoff seat stay to the second frame? Just seems like that part will be under a lot of stress.
Ishikawa said:As for the strength of the connectors, it's made of 3/4" angle not just a flat bar. It is strong enough for now. I will make another braces above the battery box to add more strength but the box is not made yet. Oops, I may have revealed another secret box. Stay tuned there will be more boxes to come.
E-HP said:Ishikawa said:As for the strength of the connectors, it's made of 3/4" angle not just a flat bar. It is strong enough for now. I will make another braces above the battery box to add more strength but the box is not made yet. Oops, I may have revealed another secret box. Stay tuned there will be more boxes to come.
I'll keep watching out. I knew there was something you can't see in the pics. I think if it's 3/4, then maybe consider adding another piece between the cutoff stay, up to above the swingarm pivot, maybe to where the "t" is, to counteract the forces from the swingarm. Just a thought.
What's your ground clearance looking like?
Ishikawa said:I just want to put the bracket on the back burner for now and deal with other problems may come up. I will deal with it later.
Ground clearance is about 5" without load. It will be 4" or so with load on. I think that's enough for riding on the street. I am not going to ride this on rough terrain. But if it's too low, I have some stronger springs and longer shocks to increase it. Worse comes worst, I can replace the motor with smaller diameter one to gain more. That's the reason why I put the largest motor first to see the clearance. Worst case first.
goatman said:are you using the attachments like in this picture
IMG_20210219_195115.jpg
you can try imgur.com
my battery test charts have to come in to ES by using imgur.com
theyre the wrong type of file but imgur converts it?
goatman said:after clicking attachments
click on add files
it will take you into your computer pictures
select your picture and it will show up in the box like the image i showed above
click on place inline and the image will go wherever the cursor is