So I got a free '83 z50r a year or two ago and got it going as cheaply as possible. I had bought a parts frame and pulled a ct70 front end and wheels off of it but it always kind of leaned back. Now I'm doing an extended swingarm in the rear to get it leveled off. I took an XR75 swingarm and shaved out between the mounts to fit on the z50 frame and that pushed the tire back about 4 inches. I took some measurements and have some 335mm shocks on order along with a chain slider and an extended brake rod. Here's some pictures so far, I just threw on some random shocks for a mockup but it's going to be even taller than in the picture. Really easy mod if anyone has one of these z50's. The second picture really shows how big of a difference the swingarm makes