You could leave the end hanging off, or you could just cut one end of the grip with a hacksaw, but that end up against the Grip Shift, and use the clamp on the end of the bar. I did that once with my bike when I couldn't get the shorty grips for a while. Worked fine.
If you leave the end hanging off, you'll either have those weird nubs hanging out there, or if you have the "clamp" on there, you'll risk losing it.
If you leave the end hanging off, you'll either have those weird nubs hanging out there, or if you have the "clamp" on there, you'll risk losing it.