I just replaced my stock Genuine top case with a new K-max topcase I got from Scooterworks. So I thought I would throw out a few things I noticed about it and its instillation.
Installation:
It comes with all the hardware you need, but you will need to already have a rear rack on your scooter. Since this was a replacement of my old topcase... I was all set.
I removed the old case, and the plate that came with it. about 10 min worth of work. Once it was all off, I need to mount the new plate.
Setup:
The K-max plate is a "universal" fit; it has plenty of mounting holes to line up to just about any configuration. I did a dry fit with the plate attached to the case, so I could see... more or less.. where I would have to mount the plate. Once I had that worked out, it was time to mount the plate to the rack.
Attaching the plate:
This is where I ran into an issue. The screws are meant to go thru the plate, thru the mounting clips and then in to the washer and screw. However, I found that the screws were too short to do this (closest to the back of the scooter), and get a good grip on the existing rack. If there were about 1/4" longer they would be perfect.
So I ended up re-using a set of long screws from my previous topcase for the set near the back, the K-max screws for the end, and re-purposed one last set of long screws and bracket for the middle for added strength.
Verdict:
You may need to seek longer screws to do the installation on your scooter; I just don't thing you can do it with the supplied screws. The case is pretty solid and held my big-giant helmet easily. It should hold my computer bag and lunch cooler with ease. Not bad for $120. YMMV.
Pix:
The old case:


The plate attached

Underside of the plate

The new case

