I don't think I have heard of the Mac bike. I have a Meridian I got new over 10 years ago & it's had 3 different motor combo's on it. It's a great bike. I have a Harbor Freight 212cc Preditor on it now. It's not legal, but I ride slow around cops. They are amazed I can still ride at my age.
I worked in a paper mill for 35 years, retired just before my 59 birthday never regretted it. My youngest son is a truck drive. I have a Worksman trike I want to motorize, but will be using a differential so both wheel pull. Not sure on the motor though, later project down the road.........Curt
I had a plate made from 1/4 " plate steal. and drilled it to mount to the bike & motor. I used a Maxx Torque clutch & a rag joint setup to the drive wheel. A Honda GXH50 for the motor. I sold 7 of them & they are all still in use as far as I know. My bike is powered differently and is not intended for sale. I made it mainly to piss off lawyers & doctors who ride 10k bikes in their spandex scuba suits.
I have been looking at the Meridian for awhile and just saw the Mackinaw. The Mackinaw appears to be lower to the ground. I wanted to put an electric motor on it to help with all of the hills around my house. They are too expensive to buy. Of course I don't know what I'm doing but I can watch YouTube and read directions (most of the time). Do you have any suggestions?