GorillaMaxx360 was asking about how well the Neu fit because of its size.
It fits flush against the smaller side of the GorillaMax single speed tranny. I originaly tried my Neu with a MM. To prevent cogging I would need the smallest pinion that would fit. I also knew I was going to have to use, at least initally, a stock slipper with a 52t mod spur. Using Brian's gear calculator and measuring the distance between between the motor shaft and the input shaft I came up with the smallest pinion that would mesh, a 17t.
Here is the mesh seen from the rear. I used the "put a piece of paper between the gear" to get a good mesh.
