@Lowquality no offense but you are falling into that first time builder trap: buy the cheapest bike possible and install the cheapest kit possible.
Don't do it.
Buy a decent used bike like a Trek or Specialized or Fuji or Giant with disc brakes (mechanical) and a quality frame that actually fits you. Buy a decent ekit from a seller with a great reputation and who has been in business for a while.
Sellers with good reputations:
CellMan
http://em3ev.com/store/
GoldenMotors Canada
http://www.goldenmotor.ca/
Electric Rider
http://www.electricrider.com/
I'm sure there are others. These companies have been around at least 7 years.
Are you saying the golden pie hub motor is a bad motor/kit?
And as far as the bike, it looks like I'll have to go with plan B , which is order the motor/battery , then go up to the bike shop and find a frame that fits the battery, and myself, and find a similar one with disc brakes or install them.
Earlier you mentioned just buying an off the shelf e-bike, but I've noticed every single one cost $2400 and uses subpar batteries (most 10ah and 32v) and 500w motors - the only one that even looked decent was the Radmotors one, but the $175 shipping makes it to expensive.
Earlier you asked about did I actually ride the donor bike (which will not be used) - i rode it about 2 miles this weekend, yet im surrounded by big hills, I was able to do it but i stayed off major roads. It wasnt much fun and the brakes sucked.
anyways, the total after shipping is right at $1000 for the motor and a 48v 20ah Samsung battery , was going to buy 2 torque arms from a different company. Then I was going to find a suitable bike.
** Yes, its for exercise, but its also for fun. If i ride the bike for 30 minutes and only pedal for 10 of those minutes, thats 10 more minutes then i would of pedaled sitting at home. If the smaller motors did not cost the exact same as the larger motor I would just consider a smaller one. If and when I have to travel on or across 4 lane highways, which I will always have to do at least once in either direction, I do not want to rely on pedaling, just want to get on and get off asap as neither will require extended time periods. When going up a steep hill (a few of those around here in my path) I do not want to risk burning up the motor if I want to rest or simply lightly pedal which I'd assume the smaller motors would do - much like my 1200w scooter which almost burned up, realized when the motor is having that much strain its better to just get off and walk it. Hope that clears up some confusion - as this was a learning process for me as well.
Feel free to point me to a better motor/kit