Older PGO BIG MAX 50 engine converted to GY6 150cc, rear original rim do not fit

GY6 150cc into 50cc Frame?

 Richard M. A. Corp converting his PGO Big Max scooter. Trying to get a short case GY6 150cc into the frame. PGO rims / wheels does not fit though:

"I have an old PGO Big Max 50 with a bad motor. I bought a Gy6 150, but the hub of the rear rim will not fit over the brakes that the new motor came with. I don’t know if the spline fits or not, I think it does. I need to buy a new wheel before I can mount the motor. 

The tire on the bike is 120/90-10, he believes it to be a 10 x 2.5" wheel."

Suggestion: Might wanna try get a GY6 short case rim because short case uses 49cc brake pads (source Internet, Jason H.).

Putting a 150cc GY6 into PGO BIG MAX 50cc frame.

Looks like 5 inch something?

Good to know: 50, 125, 150 all have different brake sizes

Engine seems to fit the frame at least.

Hope to see Richard succeed with his build. Good luck. Let us know how it works out!

Photos from Richard M. A. Corp.