^^this is awesome
Major update on the bike today! I have figured out the controller programming via a usb-ttl adapter, I have added regenerative braking, I have added a 3-speed switch, I have drilled cooling holes in the motor, and I put on some 26x2.4 CST Cyclops tires.
I also received a new power supply which allows me to charge at 10a instead of the previous 5a.
I have doubled up the brake rotors on the front. I had to dremel one of the pads for awhile to get the extra clearence. The rotors now barely fit inside the caliper; stopping power is superb and the rotor doesn't squeak as much or get as hot. Notice how one rotor is thinner then the other one.
My power supply is a 30a 12v 350w power supply from an ebay member called modders.cn. It works very well.
I used a 1 1/8" Bi-metal hole saw. I made a template out of a baseball card to mark the holes. I took the covers completely off of the motor to drill the holes.
This is a 6-position rotary switch I got at radioshack. I have 4 options. Three positions are 100%, and the others are less. I can program them with the computer. I will use them for all-out mode and economy modes.
Regen is activated by pushing down the un-used thumb shifter. This works very well. I used a momentry push-button switch.
I rode about 20 miles today. The new tires are awesome! They are very smooth! It is like going from a non-suspension bike with wagon wheels to a 250cc dirtbike! I really love these tires and I hope they last thousands of miles.
The motor had a lot more trouble getting hot. I was still able to peak 97C, but I had to really try. I am and will experiment with fans for cooling. Right now I have a couple powerade caps acting as fins,,, It's not working too wel..
The one thing that puzzled me after today is my max power output.
When I changed the amp limit from 20a to 30a, to 40a, to 50a,, I barely felt a difference. When I hooked up the watt meter I found that I only pulled 27a and 1728w. I had 15+ miles on the charge, but I still expected much more power. I was hoping for 2500w+!
Is there a setting that I am overlooking on the parameter designer?