I was thinking about getting one of these motors
http://www.zone8cycling.com/Bicycle-Engine-Kit-RAW-50cc-EPA-Certified-p29.html
are they good quality? Also I was planning on putting it on a schwinn 24'' mountain bike. according to the seller the frame is 14" and the top tube is 20". Will this motor fit in this frame?
here is a pic for reference
Thanks in advance!
http://www.zone8cycling.com/Bicycle-Engine-Kit-RAW-50cc-EPA-Certified-p29.html
are they good quality? Also I was planning on putting it on a schwinn 24'' mountain bike. according to the seller the frame is 14" and the top tube is 20". Will this motor fit in this frame?
here is a pic for reference

Thanks in advance!